From 21734d2fb896e0ecdddd3251caa72a3576e2d415 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sun, 10 Mar 2013 14:14:53 -0400 Subject: [PATCH] Support writable foreign tables. This patch adds the core-system infrastructure needed to support updates on foreign tables, and extends contrib/postgres_fdw to allow updates against remote Postgres servers. There's still a great deal of room for improvement in optimization of remote updates, but at least there's basic functionality there now. KaiGai Kohei, reviewed by Alexander Korotkov and Laurenz Albe, and rather heavily revised by Tom Lane. --- contrib/file_fdw/input/file_fdw.source | 1 - contrib/file_fdw/output/file_fdw.source | 10 +- contrib/postgres_fdw/connection.c | 67 +- contrib/postgres_fdw/deparse.c | 305 +++- .../postgres_fdw/expected/postgres_fdw.out | 1509 +++++++++++++++++ contrib/postgres_fdw/postgres_fdw.c | 1066 ++++++++++-- contrib/postgres_fdw/postgres_fdw.h | 18 +- contrib/postgres_fdw/sql/postgres_fdw.sql | 74 + doc/src/sgml/ddl.sgml | 31 +- doc/src/sgml/fdwhandler.sgml | 439 ++++- doc/src/sgml/file-fdw.sgml | 7 +- doc/src/sgml/postgres-fdw.sgml | 5 +- .../sgml/ref/create_foreign_data_wrapper.sgml | 10 +- src/backend/commands/copy.c | 15 +- src/backend/commands/explain.c | 35 +- src/backend/executor/execMain.c | 42 +- src/backend/executor/nodeForeignscan.c | 3 +- src/backend/executor/nodeModifyTable.c | 151 +- src/backend/nodes/copyfuncs.c | 1 + src/backend/nodes/outfuncs.c | 1 + src/backend/optimizer/plan/createplan.c | 54 +- src/backend/optimizer/plan/planner.c | 15 +- src/backend/optimizer/prep/preptlist.c | 3 +- src/backend/parser/analyze.c | 13 +- src/backend/rewrite/rewriteHandler.c | 27 +- src/include/foreign/fdwapi.h | 69 +- src/include/nodes/execnodes.h | 7 +- src/include/nodes/plannodes.h | 38 +- src/include/optimizer/planmain.h | 3 +- 29 files changed, 3672 insertions(+), 347 deletions(-) diff --git a/contrib/file_fdw/input/file_fdw.source b/contrib/file_fdw/input/file_fdw.source index 8e3d553f90..f7fd28d44d 100644 --- a/contrib/file_fdw/input/file_fdw.source +++ b/contrib/file_fdw/input/file_fdw.source @@ -118,7 +118,6 @@ SELECT tableoid::regclass, b FROM agg_csv; INSERT INTO agg_csv VALUES(1,2.0); UPDATE agg_csv SET a = 1; DELETE FROM agg_csv WHERE a = 100; -SELECT * FROM agg_csv FOR UPDATE OF agg_csv; -- but this should be ignored SELECT * FROM agg_csv FOR UPDATE; diff --git a/contrib/file_fdw/output/file_fdw.source b/contrib/file_fdw/output/file_fdw.source index ece72429ba..4f90baebd6 100644 --- a/contrib/file_fdw/output/file_fdw.source +++ b/contrib/file_fdw/output/file_fdw.source @@ -185,15 +185,11 @@ SELECT tableoid::regclass, b FROM agg_csv; -- updates aren't supported INSERT INTO agg_csv VALUES(1,2.0); -ERROR: cannot change foreign table "agg_csv" +ERROR: cannot insert into foreign table "agg_csv" UPDATE agg_csv SET a = 1; -ERROR: cannot change foreign table "agg_csv" +ERROR: cannot update foreign table "agg_csv" DELETE FROM agg_csv WHERE a = 100; -ERROR: cannot change foreign table "agg_csv" -SELECT * FROM agg_csv FOR UPDATE OF agg_csv; -ERROR: row-level locks cannot be used with foreign table "agg_csv" -LINE 1: SELECT * FROM agg_csv FOR UPDATE OF agg_csv; - ^ +ERROR: cannot delete from foreign table "agg_csv" -- but this should be ignored SELECT * FROM agg_csv FOR UPDATE; a | b diff --git a/contrib/postgres_fdw/connection.c b/contrib/postgres_fdw/connection.c index 32a3138ce0..22ac50e6f9 100644 --- a/contrib/postgres_fdw/connection.c +++ b/contrib/postgres_fdw/connection.c @@ -47,6 +47,8 @@ typedef struct ConnCacheEntry PGconn *conn; /* connection to foreign server, or NULL */ int xact_depth; /* 0 = no xact open, 1 = main xact open, 2 = * one level of subxact open, etc */ + bool have_prep_stmt; /* have we prepared any stmts in this xact? */ + bool have_error; /* have any subxacts aborted in this xact? */ } ConnCacheEntry; /* @@ -54,8 +56,9 @@ typedef struct ConnCacheEntry */ static HTAB *ConnectionHash = NULL; -/* for assigning cursor numbers */ +/* for assigning cursor numbers and prepared statement numbers */ static unsigned int cursor_number = 0; +static unsigned int prep_stmt_number = 0; /* tracks whether any work is needed in callback functions */ static bool xact_got_connection = false; @@ -78,6 +81,10 @@ static void pgfdw_subxact_callback(SubXactEvent event, * if we don't already have a suitable one, and a transaction is opened at * the right subtransaction nesting depth if we didn't do that already. * + * will_prep_stmt must be true if caller intends to create any prepared + * statements. Since those don't go away automatically at transaction end + * (not even on error), we need this flag to cue manual cleanup. + * * XXX Note that caching connections theoretically requires a mechanism to * detect change of FDW objects to invalidate already established connections. * We could manage that by watching for invalidation events on the relevant @@ -86,7 +93,8 @@ static void pgfdw_subxact_callback(SubXactEvent event, * mid-transaction anyway. */ PGconn * -GetConnection(ForeignServer *server, UserMapping *user) +GetConnection(ForeignServer *server, UserMapping *user, + bool will_prep_stmt) { bool found; ConnCacheEntry *entry; @@ -131,6 +139,8 @@ GetConnection(ForeignServer *server, UserMapping *user) /* initialize new hashtable entry (key is already filled in) */ entry->conn = NULL; entry->xact_depth = 0; + entry->have_prep_stmt = false; + entry->have_error = false; } /* @@ -147,6 +157,8 @@ GetConnection(ForeignServer *server, UserMapping *user) if (entry->conn == NULL) { entry->xact_depth = 0; /* just to be sure */ + entry->have_prep_stmt = false; + entry->have_error = false; entry->conn = connect_pg_server(server, user); elog(DEBUG3, "new postgres_fdw connection %p for server \"%s\"", entry->conn, server->servername); @@ -157,6 +169,9 @@ GetConnection(ForeignServer *server, UserMapping *user) */ begin_remote_xact(entry); + /* Remember if caller will prepare statements */ + entry->have_prep_stmt |= will_prep_stmt; + return entry->conn; } @@ -393,6 +408,20 @@ GetCursorNumber(PGconn *conn) return ++cursor_number; } +/* + * Assign a "unique" number for a prepared statement. + * + * This works much like GetCursorNumber, except that we never reset the counter + * within a session. That's because we can't be 100% sure we've gotten rid + * of all prepared statements on all connections, and it's not really worth + * increasing the risk of prepared-statement name collisions by resetting. + */ +unsigned int +GetPrepStmtNumber(PGconn *conn) +{ + return ++prep_stmt_number; +} + /* * Report an error we got from the remote server. * @@ -400,6 +429,10 @@ GetCursorNumber(PGconn *conn) * res: PGresult containing the error * clear: if true, PQclear the result (otherwise caller will handle it) * sql: NULL, or text of remote command we tried to execute + * + * Note: callers that choose not to throw ERROR for a remote error are + * responsible for making sure that the associated ConnCacheEntry gets + * marked with have_error = true. */ void pgfdw_report_error(int elevel, PGresult *res, bool clear, const char *sql) @@ -480,6 +513,22 @@ pgfdw_xact_callback(XactEvent event, void *arg) if (PQresultStatus(res) != PGRES_COMMAND_OK) pgfdw_report_error(ERROR, res, true, "COMMIT TRANSACTION"); PQclear(res); + + /* + * If there were any errors in subtransactions, and we made + * prepared statements, do a DEALLOCATE ALL to make sure we + * get rid of all prepared statements. This is annoying and + * not terribly bulletproof, but it's probably not worth + * trying harder. We intentionally ignore any errors in the + * DEALLOCATE. + */ + if (entry->have_prep_stmt && entry->have_error) + { + res = PQexec(entry->conn, "DEALLOCATE ALL"); + PQclear(res); + } + entry->have_prep_stmt = false; + entry->have_error = false; break; case XACT_EVENT_PRE_PREPARE: @@ -502,6 +551,8 @@ pgfdw_xact_callback(XactEvent event, void *arg) elog(ERROR, "missed cleaning up connection during pre-commit"); break; case XACT_EVENT_ABORT: + /* Assume we might have lost track of prepared statements */ + entry->have_error = true; /* If we're aborting, abort all remote transactions too */ res = PQexec(entry->conn, "ABORT TRANSACTION"); /* Note: can't throw ERROR, it would be infinite loop */ @@ -509,7 +560,17 @@ pgfdw_xact_callback(XactEvent event, void *arg) pgfdw_report_error(WARNING, res, true, "ABORT TRANSACTION"); else + { PQclear(res); + /* As above, make sure we've cleared any prepared stmts */ + if (entry->have_prep_stmt && entry->have_error) + { + res = PQexec(entry->conn, "DEALLOCATE ALL"); + PQclear(res); + } + entry->have_prep_stmt = false; + entry->have_error = false; + } break; } @@ -593,6 +654,8 @@ pgfdw_subxact_callback(SubXactEvent event, SubTransactionId mySubid, } else { + /* Assume we might have lost track of prepared statements */ + entry->have_error = true; /* Rollback all remote subtransactions during abort */ snprintf(sql, sizeof(sql), "ROLLBACK TO SAVEPOINT s%d; RELEASE SAVEPOINT s%d", diff --git a/contrib/postgres_fdw/deparse.c b/contrib/postgres_fdw/deparse.c index 9816f550ca..d667c99760 100644 --- a/contrib/postgres_fdw/deparse.c +++ b/contrib/postgres_fdw/deparse.c @@ -25,6 +25,7 @@ #include "postgres_fdw.h" +#include "access/heapam.h" #include "access/htup_details.h" #include "access/sysattr.h" #include "access/transam.h" @@ -66,6 +67,14 @@ static bool is_builtin(Oid procid); /* * Functions to construct string representation of a node tree. */ +static void deparseTargetList(StringInfo buf, + PlannerInfo *root, + Index rtindex, + Relation rel, + Bitmapset *attrs_used); +static void deparseReturningList(StringInfo buf, PlannerInfo *root, + Index rtindex, Relation rel, + List *returningList); static void deparseColumnRef(StringInfo buf, int varno, int varattno, PlannerInfo *root); static void deparseRelation(StringInfo buf, Oid relid); @@ -349,80 +358,104 @@ is_builtin(Oid oid) /* - * Construct a simple SELECT statement that retrieves interesting columns + * Construct a simple SELECT statement that retrieves desired columns * of the specified foreign table, and append it to "buf". The output * contains just "SELECT ... FROM tablename". - * - * "Interesting" columns are those appearing in the rel's targetlist or - * in local_conds (conditions which can't be executed remotely). */ void -deparseSimpleSql(StringInfo buf, +deparseSelectSql(StringInfo buf, PlannerInfo *root, RelOptInfo *baserel, - List *local_conds) + Bitmapset *attrs_used) { - RangeTblEntry *rte = root->simple_rte_array[baserel->relid]; - Bitmapset *attrs_used = NULL; + RangeTblEntry *rte = planner_rt_fetch(baserel->relid, root); + Relation rel; + + /* + * Core code already has some lock on each rel being planned, so we can + * use NoLock here. + */ + rel = heap_open(rte->relid, NoLock); + + /* + * Construct SELECT list + */ + appendStringInfoString(buf, "SELECT "); + deparseTargetList(buf, root, baserel->relid, rel, attrs_used); + + /* + * Construct FROM clause + */ + appendStringInfoString(buf, " FROM "); + deparseRelation(buf, RelationGetRelid(rel)); + + heap_close(rel, NoLock); +} + +/* + * Emit a target list that retrieves the columns specified in attrs_used. + * This is used for both SELECT and RETURNING targetlists. + * + * We list attributes in order of the foreign table's columns, but replace + * any attributes that need not be fetched with NULL constants. (We can't + * just omit such attributes, or we'll lose track of which columns are + * which at runtime.) Note however that any dropped columns are ignored. + * Also, if ctid needs to be retrieved, it's added at the end. + */ +static void +deparseTargetList(StringInfo buf, + PlannerInfo *root, + Index rtindex, + Relation rel, + Bitmapset *attrs_used) +{ + TupleDesc tupdesc = RelationGetDescr(rel); bool have_wholerow; bool first; - AttrNumber attr; - ListCell *lc; - - /* Collect all the attributes needed for joins or final output. */ - pull_varattnos((Node *) baserel->reltargetlist, baserel->relid, - &attrs_used); - - /* Add all the attributes used by local_conds. */ - foreach(lc, local_conds) - { - RestrictInfo *rinfo = (RestrictInfo *) lfirst(lc); - - pull_varattnos((Node *) rinfo->clause, baserel->relid, - &attrs_used); - } + int i; /* If there's a whole-row reference, we'll need all the columns. */ have_wholerow = bms_is_member(0 - FirstLowInvalidHeapAttributeNumber, attrs_used); - /* - * Construct SELECT list - * - * We list attributes in order of the foreign table's columns, but replace - * any attributes that need not be fetched with NULL constants. (We can't - * just omit such attributes, or we'll lose track of which columns are - * which at runtime.) Note however that any dropped columns are ignored. - */ - appendStringInfo(buf, "SELECT "); first = true; - for (attr = 1; attr <= baserel->max_attr; attr++) + for (i = 1; i <= tupdesc->natts; i++) { + Form_pg_attribute attr = tupdesc->attrs[i - 1]; + /* Ignore dropped attributes. */ - if (get_rte_attribute_is_dropped(rte, attr)) + if (attr->attisdropped) continue; if (!first) - appendStringInfo(buf, ", "); + appendStringInfoString(buf, ", "); first = false; if (have_wholerow || - bms_is_member(attr - FirstLowInvalidHeapAttributeNumber, + bms_is_member(i - FirstLowInvalidHeapAttributeNumber, attrs_used)) - deparseColumnRef(buf, baserel->relid, attr, root); + deparseColumnRef(buf, rtindex, i, root); else - appendStringInfo(buf, "NULL"); + appendStringInfoString(buf, "NULL"); + } + + /* + * Add ctid if needed. We currently don't support retrieving any other + * system columns. + */ + if (bms_is_member(SelfItemPointerAttributeNumber - FirstLowInvalidHeapAttributeNumber, + attrs_used)) + { + if (!first) + appendStringInfoString(buf, ", "); + first = false; + + appendStringInfoString(buf, "ctid"); } /* Don't generate bad syntax if no undropped columns */ if (first) - appendStringInfo(buf, "NULL"); - - /* - * Construct FROM clause - */ - appendStringInfo(buf, " FROM "); - deparseRelation(buf, rte->relid); + appendStringInfoString(buf, "NULL"); } /* @@ -432,9 +465,9 @@ deparseSimpleSql(StringInfo buf, */ void appendWhereClause(StringInfo buf, - bool is_first, + PlannerInfo *root, List *exprs, - PlannerInfo *root) + bool is_first) { ListCell *lc; @@ -444,9 +477,9 @@ appendWhereClause(StringInfo buf, /* Connect expressions with "AND" and parenthesize each condition. */ if (is_first) - appendStringInfo(buf, " WHERE "); + appendStringInfoString(buf, " WHERE "); else - appendStringInfo(buf, " AND "); + appendStringInfoString(buf, " AND "); appendStringInfoChar(buf, '('); deparseExpr(buf, ri->clause, root); @@ -456,6 +489,147 @@ appendWhereClause(StringInfo buf, } } +/* + * deparse remote INSERT statement + */ +void +deparseInsertSql(StringInfo buf, PlannerInfo *root, Index rtindex, + List *targetAttrs, List *returningList) +{ + RangeTblEntry *rte = planner_rt_fetch(rtindex, root); + Relation rel = heap_open(rte->relid, NoLock); + TupleDesc tupdesc = RelationGetDescr(rel); + AttrNumber pindex; + bool first; + ListCell *lc; + + appendStringInfoString(buf, "INSERT INTO "); + deparseRelation(buf, rte->relid); + appendStringInfoString(buf, "("); + + first = true; + foreach(lc, targetAttrs) + { + int attnum = lfirst_int(lc); + Form_pg_attribute attr = tupdesc->attrs[attnum - 1]; + + Assert(!attr->attisdropped); + + if (!first) + appendStringInfoString(buf, ", "); + first = false; + + deparseColumnRef(buf, rtindex, attnum, root); + } + + appendStringInfoString(buf, ") VALUES ("); + + pindex = 1; + first = true; + foreach(lc, targetAttrs) + { + if (!first) + appendStringInfoString(buf, ", "); + first = false; + + appendStringInfo(buf, "$%d", pindex); + pindex++; + } + + appendStringInfoString(buf, ")"); + + if (returningList) + deparseReturningList(buf, root, rtindex, rel, returningList); + + heap_close(rel, NoLock); +} + +/* + * deparse remote UPDATE statement + */ +void +deparseUpdateSql(StringInfo buf, PlannerInfo *root, Index rtindex, + List *targetAttrs, List *returningList) +{ + RangeTblEntry *rte = planner_rt_fetch(rtindex, root); + Relation rel = heap_open(rte->relid, NoLock); + TupleDesc tupdesc = RelationGetDescr(rel); + AttrNumber pindex; + bool first; + ListCell *lc; + + appendStringInfoString(buf, "UPDATE "); + deparseRelation(buf, rte->relid); + appendStringInfoString(buf, " SET "); + + pindex = 2; /* ctid is always the first param */ + first = true; + foreach(lc, targetAttrs) + { + int attnum = lfirst_int(lc); + Form_pg_attribute attr = tupdesc->attrs[attnum - 1]; + + Assert(!attr->attisdropped); + + if (!first) + appendStringInfoString(buf, ", "); + first = false; + + deparseColumnRef(buf, rtindex, attnum, root); + appendStringInfo(buf, " = $%d", pindex); + pindex++; + } + appendStringInfoString(buf, " WHERE ctid = $1"); + + if (returningList) + deparseReturningList(buf, root, rtindex, rel, returningList); + + heap_close(rel, NoLock); +} + +/* + * deparse remote DELETE statement + */ +void +deparseDeleteSql(StringInfo buf, PlannerInfo *root, Index rtindex, + List *returningList) +{ + RangeTblEntry *rte = planner_rt_fetch(rtindex, root); + + appendStringInfoString(buf, "DELETE FROM "); + deparseRelation(buf, rte->relid); + appendStringInfoString(buf, " WHERE ctid = $1"); + + if (returningList) + { + Relation rel = heap_open(rte->relid, NoLock); + + deparseReturningList(buf, root, rtindex, rel, returningList); + heap_close(rel, NoLock); + } +} + +/* + * deparse RETURNING clause of INSERT/UPDATE/DELETE + */ +static void +deparseReturningList(StringInfo buf, PlannerInfo *root, + Index rtindex, Relation rel, + List *returningList) +{ + Bitmapset *attrs_used; + + /* + * We need the attrs mentioned in the query's RETURNING list. + */ + attrs_used = NULL; + pull_varattnos((Node *) returningList, rtindex, + &attrs_used); + + appendStringInfoString(buf, " RETURNING "); + deparseTargetList(buf, root, rtindex, rel, attrs_used); +} + /* * Construct SELECT statement to acquire size in blocks of given relation. * @@ -495,13 +669,17 @@ deparseAnalyzeSql(StringInfo buf, Relation rel) ListCell *lc; bool first = true; - appendStringInfo(buf, "SELECT "); + appendStringInfoString(buf, "SELECT "); for (i = 0; i < tupdesc->natts; i++) { /* Ignore dropped columns. */ if (tupdesc->attrs[i]->attisdropped) continue; + if (!first) + appendStringInfoString(buf, ", "); + first = false; + /* Use attribute name or column_name option. */ colname = NameStr(tupdesc->attrs[i]->attname); options = GetForeignColumnOptions(relid, i + 1); @@ -517,20 +695,17 @@ deparseAnalyzeSql(StringInfo buf, Relation rel) } } - if (!first) - appendStringInfo(buf, ", "); appendStringInfoString(buf, quote_identifier(colname)); - first = false; } /* Don't generate bad syntax for zero-column relation. */ if (first) - appendStringInfo(buf, "NULL"); + appendStringInfoString(buf, "NULL"); /* * Construct FROM clause */ - appendStringInfo(buf, " FROM "); + appendStringInfoString(buf, " FROM "); deparseRelation(buf, relid); } @@ -547,10 +722,10 @@ deparseColumnRef(StringInfo buf, int varno, int varattno, PlannerInfo *root) ListCell *lc; /* varno must not be any of OUTER_VAR, INNER_VAR and INDEX_VAR. */ - Assert(varno >= 1 && varno <= root->simple_rel_array_size); + Assert(!IS_SPECIAL_VARNO(varno)); /* Get RangeTblEntry from array in PlannerInfo. */ - rte = root->simple_rte_array[varno]; + rte = planner_rt_fetch(varno, root); /* * If it's a column of a foreign table, and it has the column_name FDW @@ -608,8 +783,8 @@ deparseRelation(StringInfo buf, Oid relid) } /* - * Note: we could skip printing the schema name if it's pg_catalog, - * but that doesn't seem worth the trouble. + * Note: we could skip printing the schema name if it's pg_catalog, but + * that doesn't seem worth the trouble. */ if (nspname == NULL) nspname = get_namespace_name(get_rel_namespace(relid)); @@ -1059,7 +1234,7 @@ deparseDistinctExpr(StringInfo buf, DistinctExpr *node, PlannerInfo *root) appendStringInfoChar(buf, '('); deparseExpr(buf, linitial(node->args), root); - appendStringInfo(buf, " IS DISTINCT FROM "); + appendStringInfoString(buf, " IS DISTINCT FROM "); deparseExpr(buf, lsecond(node->args), root); appendStringInfoChar(buf, ')'); } @@ -1146,7 +1321,7 @@ deparseBoolExpr(StringInfo buf, BoolExpr *node, PlannerInfo *root) op = "OR"; break; case NOT_EXPR: - appendStringInfo(buf, "(NOT "); + appendStringInfoString(buf, "(NOT "); deparseExpr(buf, linitial(node->args), root); appendStringInfoChar(buf, ')'); return; @@ -1173,9 +1348,9 @@ deparseNullTest(StringInfo buf, NullTest *node, PlannerInfo *root) appendStringInfoChar(buf, '('); deparseExpr(buf, node->arg, root); if (node->nulltesttype == IS_NULL) - appendStringInfo(buf, " IS NULL)"); + appendStringInfoString(buf, " IS NULL)"); else - appendStringInfo(buf, " IS NOT NULL)"); + appendStringInfoString(buf, " IS NOT NULL)"); } /* @@ -1187,11 +1362,11 @@ deparseArrayExpr(StringInfo buf, ArrayExpr *node, PlannerInfo *root) bool first = true; ListCell *lc; - appendStringInfo(buf, "ARRAY["); + appendStringInfoString(buf, "ARRAY["); foreach(lc, node->elements) { if (!first) - appendStringInfo(buf, ", "); + appendStringInfoString(buf, ", "); deparseExpr(buf, lfirst(lc), root); first = false; } diff --git a/contrib/postgres_fdw/expected/postgres_fdw.out b/contrib/postgres_fdw/expected/postgres_fdw.out index 07c7970dc7..21429ca166 100644 --- a/contrib/postgres_fdw/expected/postgres_fdw.out +++ b/contrib/postgres_fdw/expected/postgres_fdw.out @@ -731,3 +731,1512 @@ SELECT * FROM ft1 ORDER BY c1 LIMIT 1; (1 row) COMMIT; +-- =================================================================== +-- test writable foreign table stuff +-- =================================================================== +EXPLAIN (verbose, costs off) +INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20; + QUERY PLAN +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + Insert on public.ft2 + Remote SQL: INSERT INTO "S 1"."T 1"("C 1", c2, c3) VALUES ($1, $2, $3) + -> Subquery Scan on "*SELECT*" + Output: NULL::integer, "*SELECT*"."?column?", "*SELECT*"."?column?_1", "*SELECT*"."?column?_2", NULL::timestamp with time zone, NULL::timestamp without time zone, NULL::character varying, NULL::bpchar, NULL::user_enum + -> Limit + Output: ((ft2_1.c1 + 1000)), ((ft2_1.c2 + 100)), ((ft2_1.c3 || ft2_1.c3)) + -> Foreign Scan on public.ft2 ft2_1 + Output: (ft2_1.c1 + 1000), (ft2_1.c2 + 100), (ft2_1.c3 || ft2_1.c3) + Remote SQL: SELECT "C 1", c2, c3, NULL, NULL, NULL, NULL, NULL FROM "S 1"."T 1" +(9 rows) + +INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20; +INSERT INTO ft2 (c1,c2,c3) + VALUES (1101,201,'aaa'), (1102,202,'bbb'), (1103,203,'ccc') RETURNING *; + c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 +------+-----+-----+----+----+----+----+---- + 1101 | 201 | aaa | | | | | + 1102 | 202 | bbb | | | | | + 1103 | 203 | ccc | | | | | +(3 rows) + +INSERT INTO ft2 (c1,c2,c3) VALUES (1104,204,'ddd'), (1105,205,'eee'); +UPDATE ft2 SET c2 = c2 + 300, c3 = c3 || '_update3' WHERE c1 % 10 = 3; +UPDATE ft2 SET c2 = c2 + 400, c3 = c3 || '_update7' WHERE c1 % 10 = 7 RETURNING *; + c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 +------+-----+--------------------+------------------------------+--------------------------+----+------------+----- + 7 | 407 | 00007_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 17 | 407 | 00017_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 27 | 407 | 00027_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 37 | 407 | 00037_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 47 | 407 | 00047_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 57 | 407 | 00057_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 67 | 407 | 00067_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 77 | 407 | 00077_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 87 | 407 | 00087_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 97 | 407 | 00097_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 107 | 407 | 00107_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 117 | 407 | 00117_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 127 | 407 | 00127_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 137 | 407 | 00137_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 147 | 407 | 00147_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 157 | 407 | 00157_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 167 | 407 | 00167_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 177 | 407 | 00177_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 187 | 407 | 00187_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 197 | 407 | 00197_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 207 | 407 | 00207_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 217 | 407 | 00217_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 227 | 407 | 00227_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 237 | 407 | 00237_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 247 | 407 | 00247_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 257 | 407 | 00257_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 267 | 407 | 00267_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 277 | 407 | 00277_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 287 | 407 | 00287_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 297 | 407 | 00297_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 307 | 407 | 00307_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 317 | 407 | 00317_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 327 | 407 | 00327_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 337 | 407 | 00337_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 347 | 407 | 00347_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 357 | 407 | 00357_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 367 | 407 | 00367_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 377 | 407 | 00377_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 387 | 407 | 00387_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 397 | 407 | 00397_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 407 | 407 | 00407_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 417 | 407 | 00417_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 427 | 407 | 00427_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 437 | 407 | 00437_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 447 | 407 | 00447_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 457 | 407 | 00457_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 467 | 407 | 00467_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 477 | 407 | 00477_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 487 | 407 | 00487_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 497 | 407 | 00497_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 507 | 407 | 00507_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 517 | 407 | 00517_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 527 | 407 | 00527_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 537 | 407 | 00537_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 547 | 407 | 00547_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 557 | 407 | 00557_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 567 | 407 | 00567_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 577 | 407 | 00577_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 587 | 407 | 00587_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 597 | 407 | 00597_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 607 | 407 | 00607_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 617 | 407 | 00617_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 627 | 407 | 00627_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 637 | 407 | 00637_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 647 | 407 | 00647_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 657 | 407 | 00657_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 667 | 407 | 00667_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 677 | 407 | 00677_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 687 | 407 | 00687_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 697 | 407 | 00697_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 707 | 407 | 00707_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 717 | 407 | 00717_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 727 | 407 | 00727_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 737 | 407 | 00737_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 747 | 407 | 00747_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 757 | 407 | 00757_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 767 | 407 | 00767_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 777 | 407 | 00777_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 787 | 407 | 00787_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 797 | 407 | 00797_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 807 | 407 | 00807_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 817 | 407 | 00817_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 827 | 407 | 00827_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 837 | 407 | 00837_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 847 | 407 | 00847_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 857 | 407 | 00857_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 867 | 407 | 00867_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 877 | 407 | 00877_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 887 | 407 | 00887_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 897 | 407 | 00897_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 907 | 407 | 00907_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo + 917 | 407 | 00917_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo + 927 | 407 | 00927_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo + 937 | 407 | 00937_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo + 947 | 407 | 00947_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo + 957 | 407 | 00957_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo + 967 | 407 | 00967_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo + 977 | 407 | 00977_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo + 987 | 407 | 00987_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo + 997 | 407 | 00997_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo + 1007 | 507 | 0000700007_update7 | | | | | + 1017 | 507 | 0001700017_update7 | | | | | +(102 rows) + +EXPLAIN (verbose, costs off) +UPDATE ft2 SET c2 = ft2.c2 + 500, c3 = ft2.c3 || '_update9' + FROM ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 9; + QUERY PLAN +---------------------------------------------------------------------------------------------------------------------------------------------- + Update on public.ft2 + Remote SQL: UPDATE "S 1"."T 1" SET c2 = $2, c3 = $3 WHERE ctid = $1 + -> Hash Join + Output: NULL::integer, ft2.c1, (ft2.c2 + 500), (ft2.c3 || '_update9'::text), ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft1.* + Hash Cond: (ft2.c2 = ft1.c1) + -> Foreign Scan on public.ft2 + Output: ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid + Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid FROM "S 1"."T 1" FOR UPDATE + -> Hash + Output: ft1.*, ft1.c1 + -> Foreign Scan on public.ft1 + Output: ft1.*, ft1.c1 + Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 9)) +(13 rows) + +UPDATE ft2 SET c2 = ft2.c2 + 500, c3 = ft2.c3 || '_update9' + FROM ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 9; +DELETE FROM ft2 WHERE c1 % 10 = 5 RETURNING *; + c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 +------+-----+------------+------------------------------+--------------------------+----+------------+----- + 5 | 5 | 00005 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 15 | 5 | 00015 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 25 | 5 | 00025 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 35 | 5 | 00035 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 45 | 5 | 00045 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 55 | 5 | 00055 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 65 | 5 | 00065 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 75 | 5 | 00075 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 85 | 5 | 00085 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 95 | 5 | 00095 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 105 | 5 | 00105 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 115 | 5 | 00115 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 125 | 5 | 00125 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 135 | 5 | 00135 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 145 | 5 | 00145 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 155 | 5 | 00155 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 165 | 5 | 00165 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 175 | 5 | 00175 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 185 | 5 | 00185 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 195 | 5 | 00195 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 205 | 5 | 00205 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 215 | 5 | 00215 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 225 | 5 | 00225 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 235 | 5 | 00235 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 245 | 5 | 00245 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 255 | 5 | 00255 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 265 | 5 | 00265 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 275 | 5 | 00275 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 285 | 5 | 00285 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 295 | 5 | 00295 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 305 | 5 | 00305 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 315 | 5 | 00315 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 325 | 5 | 00325 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 335 | 5 | 00335 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 345 | 5 | 00345 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 355 | 5 | 00355 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 365 | 5 | 00365 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 375 | 5 | 00375 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 385 | 5 | 00385 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 395 | 5 | 00395 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 405 | 5 | 00405 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 415 | 5 | 00415 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 425 | 5 | 00425 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 435 | 5 | 00435 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 445 | 5 | 00445 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 455 | 5 | 00455 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 465 | 5 | 00465 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 475 | 5 | 00475 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 485 | 5 | 00485 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 495 | 5 | 00495 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 505 | 5 | 00505 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 515 | 5 | 00515 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 525 | 5 | 00525 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 535 | 5 | 00535 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 545 | 5 | 00545 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 555 | 5 | 00555 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 565 | 5 | 00565 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 575 | 5 | 00575 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 585 | 5 | 00585 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 595 | 5 | 00595 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 605 | 5 | 00605 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 615 | 5 | 00615 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 625 | 5 | 00625 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 635 | 5 | 00635 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 645 | 5 | 00645 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 655 | 5 | 00655 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 665 | 5 | 00665 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 675 | 5 | 00675 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 685 | 5 | 00685 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 695 | 5 | 00695 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 705 | 5 | 00705 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 715 | 5 | 00715 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 725 | 5 | 00725 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 735 | 5 | 00735 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 745 | 5 | 00745 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 755 | 5 | 00755 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 765 | 5 | 00765 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 775 | 5 | 00775 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 785 | 5 | 00785 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 795 | 5 | 00795 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 805 | 5 | 00805 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 815 | 5 | 00815 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 825 | 5 | 00825 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 835 | 5 | 00835 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 845 | 5 | 00845 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 855 | 5 | 00855 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 865 | 5 | 00865 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 875 | 5 | 00875 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 885 | 5 | 00885 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 895 | 5 | 00895 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 905 | 5 | 00905 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo + 915 | 5 | 00915 | Fri Jan 16 00:00:00 1970 PST | Fri Jan 16 00:00:00 1970 | 5 | 5 | foo + 925 | 5 | 00925 | Mon Jan 26 00:00:00 1970 PST | Mon Jan 26 00:00:00 1970 | 5 | 5 | foo + 935 | 5 | 00935 | Thu Feb 05 00:00:00 1970 PST | Thu Feb 05 00:00:00 1970 | 5 | 5 | foo + 945 | 5 | 00945 | Sun Feb 15 00:00:00 1970 PST | Sun Feb 15 00:00:00 1970 | 5 | 5 | foo + 955 | 5 | 00955 | Wed Feb 25 00:00:00 1970 PST | Wed Feb 25 00:00:00 1970 | 5 | 5 | foo + 965 | 5 | 00965 | Sat Mar 07 00:00:00 1970 PST | Sat Mar 07 00:00:00 1970 | 5 | 5 | foo + 975 | 5 | 00975 | Tue Mar 17 00:00:00 1970 PST | Tue Mar 17 00:00:00 1970 | 5 | 5 | foo + 985 | 5 | 00985 | Fri Mar 27 00:00:00 1970 PST | Fri Mar 27 00:00:00 1970 | 5 | 5 | foo + 995 | 5 | 00995 | Mon Apr 06 00:00:00 1970 PST | Mon Apr 06 00:00:00 1970 | 5 | 5 | foo + 1005 | 105 | 0000500005 | | | | | + 1015 | 105 | 0001500015 | | | | | + 1105 | 205 | eee | | | | | +(103 rows) + +EXPLAIN (verbose, costs off) +DELETE FROM ft2 USING ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 2; + QUERY PLAN +---------------------------------------------------------------------------------------------------------------------- + Delete on public.ft2 + Remote SQL: DELETE FROM "S 1"."T 1" WHERE ctid = $1 + -> Hash Join + Output: ft2.ctid, ft1.* + Hash Cond: (ft2.c2 = ft1.c1) + -> Foreign Scan on public.ft2 + Output: ft2.ctid, ft2.c2 + Remote SQL: SELECT NULL, c2, NULL, NULL, NULL, NULL, NULL, NULL, ctid FROM "S 1"."T 1" FOR UPDATE + -> Hash + Output: ft1.*, ft1.c1 + -> Foreign Scan on public.ft1 + Output: ft1.*, ft1.c1 + Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 2)) +(13 rows) + +DELETE FROM ft2 USING ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 2; +SELECT c1,c2,c3,c4 FROM ft2 ORDER BY c1; + c1 | c2 | c3 | c4 +------+-----+--------------------+------------------------------ + 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST + 3 | 303 | 00003_update3 | Sun Jan 04 00:00:00 1970 PST + 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST + 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST + 7 | 407 | 00007_update7 | Thu Jan 08 00:00:00 1970 PST + 8 | 8 | 00008 | Fri Jan 09 00:00:00 1970 PST + 9 | 509 | 00009_update9 | Sat Jan 10 00:00:00 1970 PST + 10 | 0 | 00010 | Sun Jan 11 00:00:00 1970 PST + 11 | 1 | 00011 | Mon Jan 12 00:00:00 1970 PST + 13 | 303 | 00013_update3 | Wed Jan 14 00:00:00 1970 PST + 14 | 4 | 00014 | Thu Jan 15 00:00:00 1970 PST + 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST + 17 | 407 | 00017_update7 | Sun Jan 18 00:00:00 1970 PST + 18 | 8 | 00018 | Mon Jan 19 00:00:00 1970 PST + 19 | 509 | 00019_update9 | Tue Jan 20 00:00:00 1970 PST + 20 | 0 | 00020 | Wed Jan 21 00:00:00 1970 PST + 21 | 1 | 00021 | Thu Jan 22 00:00:00 1970 PST + 23 | 303 | 00023_update3 | Sat Jan 24 00:00:00 1970 PST + 24 | 4 | 00024 | Sun Jan 25 00:00:00 1970 PST + 26 | 6 | 00026 | Tue Jan 27 00:00:00 1970 PST + 27 | 407 | 00027_update7 | Wed Jan 28 00:00:00 1970 PST + 28 | 8 | 00028 | Thu Jan 29 00:00:00 1970 PST + 29 | 509 | 00029_update9 | Fri Jan 30 00:00:00 1970 PST + 30 | 0 | 00030 | Sat Jan 31 00:00:00 1970 PST + 31 | 1 | 00031 | Sun Feb 01 00:00:00 1970 PST + 33 | 303 | 00033_update3 | Tue Feb 03 00:00:00 1970 PST + 34 | 4 | 00034 | Wed Feb 04 00:00:00 1970 PST + 36 | 6 | 00036 | Fri Feb 06 00:00:00 1970 PST + 37 | 407 | 00037_update7 | Sat Feb 07 00:00:00 1970 PST + 38 | 8 | 00038 | Sun Feb 08 00:00:00 1970 PST + 39 | 509 | 00039_update9 | Mon Feb 09 00:00:00 1970 PST + 40 | 0 | 00040 | Tue Feb 10 00:00:00 1970 PST + 41 | 1 | 00041 | Wed Feb 11 00:00:00 1970 PST + 43 | 303 | 00043_update3 | Fri Feb 13 00:00:00 1970 PST + 44 | 4 | 00044 | Sat Feb 14 00:00:00 1970 PST + 46 | 6 | 00046 | Mon Feb 16 00:00:00 1970 PST + 47 | 407 | 00047_update7 | Tue Feb 17 00:00:00 1970 PST + 48 | 8 | 00048 | Wed Feb 18 00:00:00 1970 PST + 49 | 509 | 00049_update9 | Thu Feb 19 00:00:00 1970 PST + 50 | 0 | 00050 | Fri Feb 20 00:00:00 1970 PST + 51 | 1 | 00051 | Sat Feb 21 00:00:00 1970 PST + 53 | 303 | 00053_update3 | Mon Feb 23 00:00:00 1970 PST + 54 | 4 | 00054 | Tue Feb 24 00:00:00 1970 PST + 56 | 6 | 00056 | Thu Feb 26 00:00:00 1970 PST + 57 | 407 | 00057_update7 | Fri Feb 27 00:00:00 1970 PST + 58 | 8 | 00058 | Sat Feb 28 00:00:00 1970 PST + 59 | 509 | 00059_update9 | Sun Mar 01 00:00:00 1970 PST + 60 | 0 | 00060 | Mon Mar 02 00:00:00 1970 PST + 61 | 1 | 00061 | Tue Mar 03 00:00:00 1970 PST + 63 | 303 | 00063_update3 | Thu Mar 05 00:00:00 1970 PST + 64 | 4 | 00064 | Fri Mar 06 00:00:00 1970 PST + 66 | 6 | 00066 | Sun Mar 08 00:00:00 1970 PST + 67 | 407 | 00067_update7 | Mon Mar 09 00:00:00 1970 PST + 68 | 8 | 00068 | Tue Mar 10 00:00:00 1970 PST + 69 | 509 | 00069_update9 | Wed Mar 11 00:00:00 1970 PST + 70 | 0 | 00070 | Thu Mar 12 00:00:00 1970 PST + 71 | 1 | 00071 | Fri Mar 13 00:00:00 1970 PST + 73 | 303 | 00073_update3 | Sun Mar 15 00:00:00 1970 PST + 74 | 4 | 00074 | Mon Mar 16 00:00:00 1970 PST + 76 | 6 | 00076 | Wed Mar 18 00:00:00 1970 PST + 77 | 407 | 00077_update7 | Thu Mar 19 00:00:00 1970 PST + 78 | 8 | 00078 | Fri Mar 20 00:00:00 1970 PST + 79 | 509 | 00079_update9 | Sat Mar 21 00:00:00 1970 PST + 80 | 0 | 00080 | Sun Mar 22 00:00:00 1970 PST + 81 | 1 | 00081 | Mon Mar 23 00:00:00 1970 PST + 83 | 303 | 00083_update3 | Wed Mar 25 00:00:00 1970 PST + 84 | 4 | 00084 | Thu Mar 26 00:00:00 1970 PST + 86 | 6 | 00086 | Sat Mar 28 00:00:00 1970 PST + 87 | 407 | 00087_update7 | Sun Mar 29 00:00:00 1970 PST + 88 | 8 | 00088 | Mon Mar 30 00:00:00 1970 PST + 89 | 509 | 00089_update9 | Tue Mar 31 00:00:00 1970 PST + 90 | 0 | 00090 | Wed Apr 01 00:00:00 1970 PST + 91 | 1 | 00091 | Thu Apr 02 00:00:00 1970 PST + 93 | 303 | 00093_update3 | Sat Apr 04 00:00:00 1970 PST + 94 | 4 | 00094 | Sun Apr 05 00:00:00 1970 PST + 96 | 6 | 00096 | Tue Apr 07 00:00:00 1970 PST + 97 | 407 | 00097_update7 | Wed Apr 08 00:00:00 1970 PST + 98 | 8 | 00098 | Thu Apr 09 00:00:00 1970 PST + 99 | 509 | 00099_update9 | Fri Apr 10 00:00:00 1970 PST + 100 | 0 | 00100 | Thu Jan 01 00:00:00 1970 PST + 101 | 1 | 00101 | Fri Jan 02 00:00:00 1970 PST + 103 | 303 | 00103_update3 | Sun Jan 04 00:00:00 1970 PST + 104 | 4 | 00104 | Mon Jan 05 00:00:00 1970 PST + 106 | 6 | 00106 | Wed Jan 07 00:00:00 1970 PST + 107 | 407 | 00107_update7 | Thu Jan 08 00:00:00 1970 PST + 108 | 8 | 00108 | Fri Jan 09 00:00:00 1970 PST + 109 | 509 | 00109_update9 | Sat Jan 10 00:00:00 1970 PST + 110 | 0 | 00110 | Sun Jan 11 00:00:00 1970 PST + 111 | 1 | 00111 | Mon Jan 12 00:00:00 1970 PST + 113 | 303 | 00113_update3 | Wed Jan 14 00:00:00 1970 PST + 114 | 4 | 00114 | Thu Jan 15 00:00:00 1970 PST + 116 | 6 | 00116 | Sat Jan 17 00:00:00 1970 PST + 117 | 407 | 00117_update7 | Sun Jan 18 00:00:00 1970 PST + 118 | 8 | 00118 | Mon Jan 19 00:00:00 1970 PST + 119 | 509 | 00119_update9 | Tue Jan 20 00:00:00 1970 PST + 120 | 0 | 00120 | Wed Jan 21 00:00:00 1970 PST + 121 | 1 | 00121 | Thu Jan 22 00:00:00 1970 PST + 123 | 303 | 00123_update3 | Sat Jan 24 00:00:00 1970 PST + 124 | 4 | 00124 | Sun Jan 25 00:00:00 1970 PST + 126 | 6 | 00126 | Tue Jan 27 00:00:00 1970 PST + 127 | 407 | 00127_update7 | Wed Jan 28 00:00:00 1970 PST + 128 | 8 | 00128 | Thu Jan 29 00:00:00 1970 PST + 129 | 509 | 00129_update9 | Fri Jan 30 00:00:00 1970 PST + 130 | 0 | 00130 | Sat Jan 31 00:00:00 1970 PST + 131 | 1 | 00131 | Sun Feb 01 00:00:00 1970 PST + 133 | 303 | 00133_update3 | Tue Feb 03 00:00:00 1970 PST + 134 | 4 | 00134 | Wed Feb 04 00:00:00 1970 PST + 136 | 6 | 00136 | Fri Feb 06 00:00:00 1970 PST + 137 | 407 | 00137_update7 | Sat Feb 07 00:00:00 1970 PST + 138 | 8 | 00138 | Sun Feb 08 00:00:00 1970 PST + 139 | 509 | 00139_update9 | Mon Feb 09 00:00:00 1970 PST + 140 | 0 | 00140 | Tue Feb 10 00:00:00 1970 PST + 141 | 1 | 00141 | Wed Feb 11 00:00:00 1970 PST + 143 | 303 | 00143_update3 | Fri Feb 13 00:00:00 1970 PST + 144 | 4 | 00144 | Sat Feb 14 00:00:00 1970 PST + 146 | 6 | 00146 | Mon Feb 16 00:00:00 1970 PST + 147 | 407 | 00147_update7 | Tue Feb 17 00:00:00 1970 PST + 148 | 8 | 00148 | Wed Feb 18 00:00:00 1970 PST + 149 | 509 | 00149_update9 | Thu Feb 19 00:00:00 1970 PST + 150 | 0 | 00150 | Fri Feb 20 00:00:00 1970 PST + 151 | 1 | 00151 | Sat Feb 21 00:00:00 1970 PST + 153 | 303 | 00153_update3 | Mon Feb 23 00:00:00 1970 PST + 154 | 4 | 00154 | Tue Feb 24 00:00:00 1970 PST + 156 | 6 | 00156 | Thu Feb 26 00:00:00 1970 PST + 157 | 407 | 00157_update7 | Fri Feb 27 00:00:00 1970 PST + 158 | 8 | 00158 | Sat Feb 28 00:00:00 1970 PST + 159 | 509 | 00159_update9 | Sun Mar 01 00:00:00 1970 PST + 160 | 0 | 00160 | Mon Mar 02 00:00:00 1970 PST + 161 | 1 | 00161 | Tue Mar 03 00:00:00 1970 PST + 163 | 303 | 00163_update3 | Thu Mar 05 00:00:00 1970 PST + 164 | 4 | 00164 | Fri Mar 06 00:00:00 1970 PST + 166 | 6 | 00166 | Sun Mar 08 00:00:00 1970 PST + 167 | 407 | 00167_update7 | Mon Mar 09 00:00:00 1970 PST + 168 | 8 | 00168 | Tue Mar 10 00:00:00 1970 PST + 169 | 509 | 00169_update9 | Wed Mar 11 00:00:00 1970 PST + 170 | 0 | 00170 | Thu Mar 12 00:00:00 1970 PST + 171 | 1 | 00171 | Fri Mar 13 00:00:00 1970 PST + 173 | 303 | 00173_update3 | Sun Mar 15 00:00:00 1970 PST + 174 | 4 | 00174 | Mon Mar 16 00:00:00 1970 PST + 176 | 6 | 00176 | Wed Mar 18 00:00:00 1970 PST + 177 | 407 | 00177_update7 | Thu Mar 19 00:00:00 1970 PST + 178 | 8 | 00178 | Fri Mar 20 00:00:00 1970 PST + 179 | 509 | 00179_update9 | Sat Mar 21 00:00:00 1970 PST + 180 | 0 | 00180 | Sun Mar 22 00:00:00 1970 PST + 181 | 1 | 00181 | Mon Mar 23 00:00:00 1970 PST + 183 | 303 | 00183_update3 | Wed Mar 25 00:00:00 1970 PST + 184 | 4 | 00184 | Thu Mar 26 00:00:00 1970 PST + 186 | 6 | 00186 | Sat Mar 28 00:00:00 1970 PST + 187 | 407 | 00187_update7 | Sun Mar 29 00:00:00 1970 PST + 188 | 8 | 00188 | Mon Mar 30 00:00:00 1970 PST + 189 | 509 | 00189_update9 | Tue Mar 31 00:00:00 1970 PST + 190 | 0 | 00190 | Wed Apr 01 00:00:00 1970 PST + 191 | 1 | 00191 | Thu Apr 02 00:00:00 1970 PST + 193 | 303 | 00193_update3 | Sat Apr 04 00:00:00 1970 PST + 194 | 4 | 00194 | Sun Apr 05 00:00:00 1970 PST + 196 | 6 | 00196 | Tue Apr 07 00:00:00 1970 PST + 197 | 407 | 00197_update7 | Wed Apr 08 00:00:00 1970 PST + 198 | 8 | 00198 | Thu Apr 09 00:00:00 1970 PST + 199 | 509 | 00199_update9 | Fri Apr 10 00:00:00 1970 PST + 200 | 0 | 00200 | Thu Jan 01 00:00:00 1970 PST + 201 | 1 | 00201 | Fri Jan 02 00:00:00 1970 PST + 203 | 303 | 00203_update3 | Sun Jan 04 00:00:00 1970 PST + 204 | 4 | 00204 | Mon Jan 05 00:00:00 1970 PST + 206 | 6 | 00206 | Wed Jan 07 00:00:00 1970 PST + 207 | 407 | 00207_update7 | Thu Jan 08 00:00:00 1970 PST + 208 | 8 | 00208 | Fri Jan 09 00:00:00 1970 PST + 209 | 509 | 00209_update9 | Sat Jan 10 00:00:00 1970 PST + 210 | 0 | 00210 | Sun Jan 11 00:00:00 1970 PST + 211 | 1 | 00211 | Mon Jan 12 00:00:00 1970 PST + 213 | 303 | 00213_update3 | Wed Jan 14 00:00:00 1970 PST + 214 | 4 | 00214 | Thu Jan 15 00:00:00 1970 PST + 216 | 6 | 00216 | Sat Jan 17 00:00:00 1970 PST + 217 | 407 | 00217_update7 | Sun Jan 18 00:00:00 1970 PST + 218 | 8 | 00218 | Mon Jan 19 00:00:00 1970 PST + 219 | 509 | 00219_update9 | Tue Jan 20 00:00:00 1970 PST + 220 | 0 | 00220 | Wed Jan 21 00:00:00 1970 PST + 221 | 1 | 00221 | Thu Jan 22 00:00:00 1970 PST + 223 | 303 | 00223_update3 | Sat Jan 24 00:00:00 1970 PST + 224 | 4 | 00224 | Sun Jan 25 00:00:00 1970 PST + 226 | 6 | 00226 | Tue Jan 27 00:00:00 1970 PST + 227 | 407 | 00227_update7 | Wed Jan 28 00:00:00 1970 PST + 228 | 8 | 00228 | Thu Jan 29 00:00:00 1970 PST + 229 | 509 | 00229_update9 | Fri Jan 30 00:00:00 1970 PST + 230 | 0 | 00230 | Sat Jan 31 00:00:00 1970 PST + 231 | 1 | 00231 | Sun Feb 01 00:00:00 1970 PST + 233 | 303 | 00233_update3 | Tue Feb 03 00:00:00 1970 PST + 234 | 4 | 00234 | Wed Feb 04 00:00:00 1970 PST + 236 | 6 | 00236 | Fri Feb 06 00:00:00 1970 PST + 237 | 407 | 00237_update7 | Sat Feb 07 00:00:00 1970 PST + 238 | 8 | 00238 | Sun Feb 08 00:00:00 1970 PST + 239 | 509 | 00239_update9 | Mon Feb 09 00:00:00 1970 PST + 240 | 0 | 00240 | Tue Feb 10 00:00:00 1970 PST + 241 | 1 | 00241 | Wed Feb 11 00:00:00 1970 PST + 243 | 303 | 00243_update3 | Fri Feb 13 00:00:00 1970 PST + 244 | 4 | 00244 | Sat Feb 14 00:00:00 1970 PST + 246 | 6 | 00246 | Mon Feb 16 00:00:00 1970 PST + 247 | 407 | 00247_update7 | Tue Feb 17 00:00:00 1970 PST + 248 | 8 | 00248 | Wed Feb 18 00:00:00 1970 PST + 249 | 509 | 00249_update9 | Thu Feb 19 00:00:00 1970 PST + 250 | 0 | 00250 | Fri Feb 20 00:00:00 1970 PST + 251 | 1 | 00251 | Sat Feb 21 00:00:00 1970 PST + 253 | 303 | 00253_update3 | Mon Feb 23 00:00:00 1970 PST + 254 | 4 | 00254 | Tue Feb 24 00:00:00 1970 PST + 256 | 6 | 00256 | Thu Feb 26 00:00:00 1970 PST + 257 | 407 | 00257_update7 | Fri Feb 27 00:00:00 1970 PST + 258 | 8 | 00258 | Sat Feb 28 00:00:00 1970 PST + 259 | 509 | 00259_update9 | Sun Mar 01 00:00:00 1970 PST + 260 | 0 | 00260 | Mon Mar 02 00:00:00 1970 PST + 261 | 1 | 00261 | Tue Mar 03 00:00:00 1970 PST + 263 | 303 | 00263_update3 | Thu Mar 05 00:00:00 1970 PST + 264 | 4 | 00264 | Fri Mar 06 00:00:00 1970 PST + 266 | 6 | 00266 | Sun Mar 08 00:00:00 1970 PST + 267 | 407 | 00267_update7 | Mon Mar 09 00:00:00 1970 PST + 268 | 8 | 00268 | Tue Mar 10 00:00:00 1970 PST + 269 | 509 | 00269_update9 | Wed Mar 11 00:00:00 1970 PST + 270 | 0 | 00270 | Thu Mar 12 00:00:00 1970 PST + 271 | 1 | 00271 | Fri Mar 13 00:00:00 1970 PST + 273 | 303 | 00273_update3 | Sun Mar 15 00:00:00 1970 PST + 274 | 4 | 00274 | Mon Mar 16 00:00:00 1970 PST + 276 | 6 | 00276 | Wed Mar 18 00:00:00 1970 PST + 277 | 407 | 00277_update7 | Thu Mar 19 00:00:00 1970 PST + 278 | 8 | 00278 | Fri Mar 20 00:00:00 1970 PST + 279 | 509 | 00279_update9 | Sat Mar 21 00:00:00 1970 PST + 280 | 0 | 00280 | Sun Mar 22 00:00:00 1970 PST + 281 | 1 | 00281 | Mon Mar 23 00:00:00 1970 PST + 283 | 303 | 00283_update3 | Wed Mar 25 00:00:00 1970 PST + 284 | 4 | 00284 | Thu Mar 26 00:00:00 1970 PST + 286 | 6 | 00286 | Sat Mar 28 00:00:00 1970 PST + 287 | 407 | 00287_update7 | Sun Mar 29 00:00:00 1970 PST + 288 | 8 | 00288 | Mon Mar 30 00:00:00 1970 PST + 289 | 509 | 00289_update9 | Tue Mar 31 00:00:00 1970 PST + 290 | 0 | 00290 | Wed Apr 01 00:00:00 1970 PST + 291 | 1 | 00291 | Thu Apr 02 00:00:00 1970 PST + 293 | 303 | 00293_update3 | Sat Apr 04 00:00:00 1970 PST + 294 | 4 | 00294 | Sun Apr 05 00:00:00 1970 PST + 296 | 6 | 00296 | Tue Apr 07 00:00:00 1970 PST + 297 | 407 | 00297_update7 | Wed Apr 08 00:00:00 1970 PST + 298 | 8 | 00298 | Thu Apr 09 00:00:00 1970 PST + 299 | 509 | 00299_update9 | Fri Apr 10 00:00:00 1970 PST + 300 | 0 | 00300 | Thu Jan 01 00:00:00 1970 PST + 301 | 1 | 00301 | Fri Jan 02 00:00:00 1970 PST + 303 | 303 | 00303_update3 | Sun Jan 04 00:00:00 1970 PST + 304 | 4 | 00304 | Mon Jan 05 00:00:00 1970 PST + 306 | 6 | 00306 | Wed Jan 07 00:00:00 1970 PST + 307 | 407 | 00307_update7 | Thu Jan 08 00:00:00 1970 PST + 308 | 8 | 00308 | Fri Jan 09 00:00:00 1970 PST + 309 | 509 | 00309_update9 | Sat Jan 10 00:00:00 1970 PST + 310 | 0 | 00310 | Sun Jan 11 00:00:00 1970 PST + 311 | 1 | 00311 | Mon Jan 12 00:00:00 1970 PST + 313 | 303 | 00313_update3 | Wed Jan 14 00:00:00 1970 PST + 314 | 4 | 00314 | Thu Jan 15 00:00:00 1970 PST + 316 | 6 | 00316 | Sat Jan 17 00:00:00 1970 PST + 317 | 407 | 00317_update7 | Sun Jan 18 00:00:00 1970 PST + 318 | 8 | 00318 | Mon Jan 19 00:00:00 1970 PST + 319 | 509 | 00319_update9 | Tue Jan 20 00:00:00 1970 PST + 320 | 0 | 00320 | Wed Jan 21 00:00:00 1970 PST + 321 | 1 | 00321 | Thu Jan 22 00:00:00 1970 PST + 323 | 303 | 00323_update3 | Sat Jan 24 00:00:00 1970 PST + 324 | 4 | 00324 | Sun Jan 25 00:00:00 1970 PST + 326 | 6 | 00326 | Tue Jan 27 00:00:00 1970 PST + 327 | 407 | 00327_update7 | Wed Jan 28 00:00:00 1970 PST + 328 | 8 | 00328 | Thu Jan 29 00:00:00 1970 PST + 329 | 509 | 00329_update9 | Fri Jan 30 00:00:00 1970 PST + 330 | 0 | 00330 | Sat Jan 31 00:00:00 1970 PST + 331 | 1 | 00331 | Sun Feb 01 00:00:00 1970 PST + 333 | 303 | 00333_update3 | Tue Feb 03 00:00:00 1970 PST + 334 | 4 | 00334 | Wed Feb 04 00:00:00 1970 PST + 336 | 6 | 00336 | Fri Feb 06 00:00:00 1970 PST + 337 | 407 | 00337_update7 | Sat Feb 07 00:00:00 1970 PST + 338 | 8 | 00338 | Sun Feb 08 00:00:00 1970 PST + 339 | 509 | 00339_update9 | Mon Feb 09 00:00:00 1970 PST + 340 | 0 | 00340 | Tue Feb 10 00:00:00 1970 PST + 341 | 1 | 00341 | Wed Feb 11 00:00:00 1970 PST + 343 | 303 | 00343_update3 | Fri Feb 13 00:00:00 1970 PST + 344 | 4 | 00344 | Sat Feb 14 00:00:00 1970 PST + 346 | 6 | 00346 | Mon Feb 16 00:00:00 1970 PST + 347 | 407 | 00347_update7 | Tue Feb 17 00:00:00 1970 PST + 348 | 8 | 00348 | Wed Feb 18 00:00:00 1970 PST + 349 | 509 | 00349_update9 | Thu Feb 19 00:00:00 1970 PST + 350 | 0 | 00350 | Fri Feb 20 00:00:00 1970 PST + 351 | 1 | 00351 | Sat Feb 21 00:00:00 1970 PST + 353 | 303 | 00353_update3 | Mon Feb 23 00:00:00 1970 PST + 354 | 4 | 00354 | Tue Feb 24 00:00:00 1970 PST + 356 | 6 | 00356 | Thu Feb 26 00:00:00 1970 PST + 357 | 407 | 00357_update7 | Fri Feb 27 00:00:00 1970 PST + 358 | 8 | 00358 | Sat Feb 28 00:00:00 1970 PST + 359 | 509 | 00359_update9 | Sun Mar 01 00:00:00 1970 PST + 360 | 0 | 00360 | Mon Mar 02 00:00:00 1970 PST + 361 | 1 | 00361 | Tue Mar 03 00:00:00 1970 PST + 363 | 303 | 00363_update3 | Thu Mar 05 00:00:00 1970 PST + 364 | 4 | 00364 | Fri Mar 06 00:00:00 1970 PST + 366 | 6 | 00366 | Sun Mar 08 00:00:00 1970 PST + 367 | 407 | 00367_update7 | Mon Mar 09 00:00:00 1970 PST + 368 | 8 | 00368 | Tue Mar 10 00:00:00 1970 PST + 369 | 509 | 00369_update9 | Wed Mar 11 00:00:00 1970 PST + 370 | 0 | 00370 | Thu Mar 12 00:00:00 1970 PST + 371 | 1 | 00371 | Fri Mar 13 00:00:00 1970 PST + 373 | 303 | 00373_update3 | Sun Mar 15 00:00:00 1970 PST + 374 | 4 | 00374 | Mon Mar 16 00:00:00 1970 PST + 376 | 6 | 00376 | Wed Mar 18 00:00:00 1970 PST + 377 | 407 | 00377_update7 | Thu Mar 19 00:00:00 1970 PST + 378 | 8 | 00378 | Fri Mar 20 00:00:00 1970 PST + 379 | 509 | 00379_update9 | Sat Mar 21 00:00:00 1970 PST + 380 | 0 | 00380 | Sun Mar 22 00:00:00 1970 PST + 381 | 1 | 00381 | Mon Mar 23 00:00:00 1970 PST + 383 | 303 | 00383_update3 | Wed Mar 25 00:00:00 1970 PST + 384 | 4 | 00384 | Thu Mar 26 00:00:00 1970 PST + 386 | 6 | 00386 | Sat Mar 28 00:00:00 1970 PST + 387 | 407 | 00387_update7 | Sun Mar 29 00:00:00 1970 PST + 388 | 8 | 00388 | Mon Mar 30 00:00:00 1970 PST + 389 | 509 | 00389_update9 | Tue Mar 31 00:00:00 1970 PST + 390 | 0 | 00390 | Wed Apr 01 00:00:00 1970 PST + 391 | 1 | 00391 | Thu Apr 02 00:00:00 1970 PST + 393 | 303 | 00393_update3 | Sat Apr 04 00:00:00 1970 PST + 394 | 4 | 00394 | Sun Apr 05 00:00:00 1970 PST + 396 | 6 | 00396 | Tue Apr 07 00:00:00 1970 PST + 397 | 407 | 00397_update7 | Wed Apr 08 00:00:00 1970 PST + 398 | 8 | 00398 | Thu Apr 09 00:00:00 1970 PST + 399 | 509 | 00399_update9 | Fri Apr 10 00:00:00 1970 PST + 400 | 0 | 00400 | Thu Jan 01 00:00:00 1970 PST + 401 | 1 | 00401 | Fri Jan 02 00:00:00 1970 PST + 403 | 303 | 00403_update3 | Sun Jan 04 00:00:00 1970 PST + 404 | 4 | 00404 | Mon Jan 05 00:00:00 1970 PST + 406 | 6 | 00406 | Wed Jan 07 00:00:00 1970 PST + 407 | 407 | 00407_update7 | Thu Jan 08 00:00:00 1970 PST + 408 | 8 | 00408 | Fri Jan 09 00:00:00 1970 PST + 409 | 509 | 00409_update9 | Sat Jan 10 00:00:00 1970 PST + 410 | 0 | 00410 | Sun Jan 11 00:00:00 1970 PST + 411 | 1 | 00411 | Mon Jan 12 00:00:00 1970 PST + 413 | 303 | 00413_update3 | Wed Jan 14 00:00:00 1970 PST + 414 | 4 | 00414 | Thu Jan 15 00:00:00 1970 PST + 416 | 6 | 00416 | Sat Jan 17 00:00:00 1970 PST + 417 | 407 | 00417_update7 | Sun Jan 18 00:00:00 1970 PST + 418 | 8 | 00418 | Mon Jan 19 00:00:00 1970 PST + 419 | 509 | 00419_update9 | Tue Jan 20 00:00:00 1970 PST + 420 | 0 | 00420 | Wed Jan 21 00:00:00 1970 PST + 421 | 1 | 00421 | Thu Jan 22 00:00:00 1970 PST + 423 | 303 | 00423_update3 | Sat Jan 24 00:00:00 1970 PST + 424 | 4 | 00424 | Sun Jan 25 00:00:00 1970 PST + 426 | 6 | 00426 | Tue Jan 27 00:00:00 1970 PST + 427 | 407 | 00427_update7 | Wed Jan 28 00:00:00 1970 PST + 428 | 8 | 00428 | Thu Jan 29 00:00:00 1970 PST + 429 | 509 | 00429_update9 | Fri Jan 30 00:00:00 1970 PST + 430 | 0 | 00430 | Sat Jan 31 00:00:00 1970 PST + 431 | 1 | 00431 | Sun Feb 01 00:00:00 1970 PST + 433 | 303 | 00433_update3 | Tue Feb 03 00:00:00 1970 PST + 434 | 4 | 00434 | Wed Feb 04 00:00:00 1970 PST + 436 | 6 | 00436 | Fri Feb 06 00:00:00 1970 PST + 437 | 407 | 00437_update7 | Sat Feb 07 00:00:00 1970 PST + 438 | 8 | 00438 | Sun Feb 08 00:00:00 1970 PST + 439 | 509 | 00439_update9 | Mon Feb 09 00:00:00 1970 PST + 440 | 0 | 00440 | Tue Feb 10 00:00:00 1970 PST + 441 | 1 | 00441 | Wed Feb 11 00:00:00 1970 PST + 443 | 303 | 00443_update3 | Fri Feb 13 00:00:00 1970 PST + 444 | 4 | 00444 | Sat Feb 14 00:00:00 1970 PST + 446 | 6 | 00446 | Mon Feb 16 00:00:00 1970 PST + 447 | 407 | 00447_update7 | Tue Feb 17 00:00:00 1970 PST + 448 | 8 | 00448 | Wed Feb 18 00:00:00 1970 PST + 449 | 509 | 00449_update9 | Thu Feb 19 00:00:00 1970 PST + 450 | 0 | 00450 | Fri Feb 20 00:00:00 1970 PST + 451 | 1 | 00451 | Sat Feb 21 00:00:00 1970 PST + 453 | 303 | 00453_update3 | Mon Feb 23 00:00:00 1970 PST + 454 | 4 | 00454 | Tue Feb 24 00:00:00 1970 PST + 456 | 6 | 00456 | Thu Feb 26 00:00:00 1970 PST + 457 | 407 | 00457_update7 | Fri Feb 27 00:00:00 1970 PST + 458 | 8 | 00458 | Sat Feb 28 00:00:00 1970 PST + 459 | 509 | 00459_update9 | Sun Mar 01 00:00:00 1970 PST + 460 | 0 | 00460 | Mon Mar 02 00:00:00 1970 PST + 461 | 1 | 00461 | Tue Mar 03 00:00:00 1970 PST + 463 | 303 | 00463_update3 | Thu Mar 05 00:00:00 1970 PST + 464 | 4 | 00464 | Fri Mar 06 00:00:00 1970 PST + 466 | 6 | 00466 | Sun Mar 08 00:00:00 1970 PST + 467 | 407 | 00467_update7 | Mon Mar 09 00:00:00 1970 PST + 468 | 8 | 00468 | Tue Mar 10 00:00:00 1970 PST + 469 | 509 | 00469_update9 | Wed Mar 11 00:00:00 1970 PST + 470 | 0 | 00470 | Thu Mar 12 00:00:00 1970 PST + 471 | 1 | 00471 | Fri Mar 13 00:00:00 1970 PST + 473 | 303 | 00473_update3 | Sun Mar 15 00:00:00 1970 PST + 474 | 4 | 00474 | Mon Mar 16 00:00:00 1970 PST + 476 | 6 | 00476 | Wed Mar 18 00:00:00 1970 PST + 477 | 407 | 00477_update7 | Thu Mar 19 00:00:00 1970 PST + 478 | 8 | 00478 | Fri Mar 20 00:00:00 1970 PST + 479 | 509 | 00479_update9 | Sat Mar 21 00:00:00 1970 PST + 480 | 0 | 00480 | Sun Mar 22 00:00:00 1970 PST + 481 | 1 | 00481 | Mon Mar 23 00:00:00 1970 PST + 483 | 303 | 00483_update3 | Wed Mar 25 00:00:00 1970 PST + 484 | 4 | 00484 | Thu Mar 26 00:00:00 1970 PST + 486 | 6 | 00486 | Sat Mar 28 00:00:00 1970 PST + 487 | 407 | 00487_update7 | Sun Mar 29 00:00:00 1970 PST + 488 | 8 | 00488 | Mon Mar 30 00:00:00 1970 PST + 489 | 509 | 00489_update9 | Tue Mar 31 00:00:00 1970 PST + 490 | 0 | 00490 | Wed Apr 01 00:00:00 1970 PST + 491 | 1 | 00491 | Thu Apr 02 00:00:00 1970 PST + 493 | 303 | 00493_update3 | Sat Apr 04 00:00:00 1970 PST + 494 | 4 | 00494 | Sun Apr 05 00:00:00 1970 PST + 496 | 6 | 00496 | Tue Apr 07 00:00:00 1970 PST + 497 | 407 | 00497_update7 | Wed Apr 08 00:00:00 1970 PST + 498 | 8 | 00498 | Thu Apr 09 00:00:00 1970 PST + 499 | 509 | 00499_update9 | Fri Apr 10 00:00:00 1970 PST + 500 | 0 | 00500 | Thu Jan 01 00:00:00 1970 PST + 501 | 1 | 00501 | Fri Jan 02 00:00:00 1970 PST + 503 | 303 | 00503_update3 | Sun Jan 04 00:00:00 1970 PST + 504 | 4 | 00504 | Mon Jan 05 00:00:00 1970 PST + 506 | 6 | 00506 | Wed Jan 07 00:00:00 1970 PST + 507 | 407 | 00507_update7 | Thu Jan 08 00:00:00 1970 PST + 508 | 8 | 00508 | Fri Jan 09 00:00:00 1970 PST + 509 | 509 | 00509_update9 | Sat Jan 10 00:00:00 1970 PST + 510 | 0 | 00510 | Sun Jan 11 00:00:00 1970 PST + 511 | 1 | 00511 | Mon Jan 12 00:00:00 1970 PST + 513 | 303 | 00513_update3 | Wed Jan 14 00:00:00 1970 PST + 514 | 4 | 00514 | Thu Jan 15 00:00:00 1970 PST + 516 | 6 | 00516 | Sat Jan 17 00:00:00 1970 PST + 517 | 407 | 00517_update7 | Sun Jan 18 00:00:00 1970 PST + 518 | 8 | 00518 | Mon Jan 19 00:00:00 1970 PST + 519 | 509 | 00519_update9 | Tue Jan 20 00:00:00 1970 PST + 520 | 0 | 00520 | Wed Jan 21 00:00:00 1970 PST + 521 | 1 | 00521 | Thu Jan 22 00:00:00 1970 PST + 523 | 303 | 00523_update3 | Sat Jan 24 00:00:00 1970 PST + 524 | 4 | 00524 | Sun Jan 25 00:00:00 1970 PST + 526 | 6 | 00526 | Tue Jan 27 00:00:00 1970 PST + 527 | 407 | 00527_update7 | Wed Jan 28 00:00:00 1970 PST + 528 | 8 | 00528 | Thu Jan 29 00:00:00 1970 PST + 529 | 509 | 00529_update9 | Fri Jan 30 00:00:00 1970 PST + 530 | 0 | 00530 | Sat Jan 31 00:00:00 1970 PST + 531 | 1 | 00531 | Sun Feb 01 00:00:00 1970 PST + 533 | 303 | 00533_update3 | Tue Feb 03 00:00:00 1970 PST + 534 | 4 | 00534 | Wed Feb 04 00:00:00 1970 PST + 536 | 6 | 00536 | Fri Feb 06 00:00:00 1970 PST + 537 | 407 | 00537_update7 | Sat Feb 07 00:00:00 1970 PST + 538 | 8 | 00538 | Sun Feb 08 00:00:00 1970 PST + 539 | 509 | 00539_update9 | Mon Feb 09 00:00:00 1970 PST + 540 | 0 | 00540 | Tue Feb 10 00:00:00 1970 PST + 541 | 1 | 00541 | Wed Feb 11 00:00:00 1970 PST + 543 | 303 | 00543_update3 | Fri Feb 13 00:00:00 1970 PST + 544 | 4 | 00544 | Sat Feb 14 00:00:00 1970 PST + 546 | 6 | 00546 | Mon Feb 16 00:00:00 1970 PST + 547 | 407 | 00547_update7 | Tue Feb 17 00:00:00 1970 PST + 548 | 8 | 00548 | Wed Feb 18 00:00:00 1970 PST + 549 | 509 | 00549_update9 | Thu Feb 19 00:00:00 1970 PST + 550 | 0 | 00550 | Fri Feb 20 00:00:00 1970 PST + 551 | 1 | 00551 | Sat Feb 21 00:00:00 1970 PST + 553 | 303 | 00553_update3 | Mon Feb 23 00:00:00 1970 PST + 554 | 4 | 00554 | Tue Feb 24 00:00:00 1970 PST + 556 | 6 | 00556 | Thu Feb 26 00:00:00 1970 PST + 557 | 407 | 00557_update7 | Fri Feb 27 00:00:00 1970 PST + 558 | 8 | 00558 | Sat Feb 28 00:00:00 1970 PST + 559 | 509 | 00559_update9 | Sun Mar 01 00:00:00 1970 PST + 560 | 0 | 00560 | Mon Mar 02 00:00:00 1970 PST + 561 | 1 | 00561 | Tue Mar 03 00:00:00 1970 PST + 563 | 303 | 00563_update3 | Thu Mar 05 00:00:00 1970 PST + 564 | 4 | 00564 | Fri Mar 06 00:00:00 1970 PST + 566 | 6 | 00566 | Sun Mar 08 00:00:00 1970 PST + 567 | 407 | 00567_update7 | Mon Mar 09 00:00:00 1970 PST + 568 | 8 | 00568 | Tue Mar 10 00:00:00 1970 PST + 569 | 509 | 00569_update9 | Wed Mar 11 00:00:00 1970 PST + 570 | 0 | 00570 | Thu Mar 12 00:00:00 1970 PST + 571 | 1 | 00571 | Fri Mar 13 00:00:00 1970 PST + 573 | 303 | 00573_update3 | Sun Mar 15 00:00:00 1970 PST + 574 | 4 | 00574 | Mon Mar 16 00:00:00 1970 PST + 576 | 6 | 00576 | Wed Mar 18 00:00:00 1970 PST + 577 | 407 | 00577_update7 | Thu Mar 19 00:00:00 1970 PST + 578 | 8 | 00578 | Fri Mar 20 00:00:00 1970 PST + 579 | 509 | 00579_update9 | Sat Mar 21 00:00:00 1970 PST + 580 | 0 | 00580 | Sun Mar 22 00:00:00 1970 PST + 581 | 1 | 00581 | Mon Mar 23 00:00:00 1970 PST + 583 | 303 | 00583_update3 | Wed Mar 25 00:00:00 1970 PST + 584 | 4 | 00584 | Thu Mar 26 00:00:00 1970 PST + 586 | 6 | 00586 | Sat Mar 28 00:00:00 1970 PST + 587 | 407 | 00587_update7 | Sun Mar 29 00:00:00 1970 PST + 588 | 8 | 00588 | Mon Mar 30 00:00:00 1970 PST + 589 | 509 | 00589_update9 | Tue Mar 31 00:00:00 1970 PST + 590 | 0 | 00590 | Wed Apr 01 00:00:00 1970 PST + 591 | 1 | 00591 | Thu Apr 02 00:00:00 1970 PST + 593 | 303 | 00593_update3 | Sat Apr 04 00:00:00 1970 PST + 594 | 4 | 00594 | Sun Apr 05 00:00:00 1970 PST + 596 | 6 | 00596 | Tue Apr 07 00:00:00 1970 PST + 597 | 407 | 00597_update7 | Wed Apr 08 00:00:00 1970 PST + 598 | 8 | 00598 | Thu Apr 09 00:00:00 1970 PST + 599 | 509 | 00599_update9 | Fri Apr 10 00:00:00 1970 PST + 600 | 0 | 00600 | Thu Jan 01 00:00:00 1970 PST + 601 | 1 | 00601 | Fri Jan 02 00:00:00 1970 PST + 603 | 303 | 00603_update3 | Sun Jan 04 00:00:00 1970 PST + 604 | 4 | 00604 | Mon Jan 05 00:00:00 1970 PST + 606 | 6 | 00606 | Wed Jan 07 00:00:00 1970 PST + 607 | 407 | 00607_update7 | Thu Jan 08 00:00:00 1970 PST + 608 | 8 | 00608 | Fri Jan 09 00:00:00 1970 PST + 609 | 509 | 00609_update9 | Sat Jan 10 00:00:00 1970 PST + 610 | 0 | 00610 | Sun Jan 11 00:00:00 1970 PST + 611 | 1 | 00611 | Mon Jan 12 00:00:00 1970 PST + 613 | 303 | 00613_update3 | Wed Jan 14 00:00:00 1970 PST + 614 | 4 | 00614 | Thu Jan 15 00:00:00 1970 PST + 616 | 6 | 00616 | Sat Jan 17 00:00:00 1970 PST + 617 | 407 | 00617_update7 | Sun Jan 18 00:00:00 1970 PST + 618 | 8 | 00618 | Mon Jan 19 00:00:00 1970 PST + 619 | 509 | 00619_update9 | Tue Jan 20 00:00:00 1970 PST + 620 | 0 | 00620 | Wed Jan 21 00:00:00 1970 PST + 621 | 1 | 00621 | Thu Jan 22 00:00:00 1970 PST + 623 | 303 | 00623_update3 | Sat Jan 24 00:00:00 1970 PST + 624 | 4 | 00624 | Sun Jan 25 00:00:00 1970 PST + 626 | 6 | 00626 | Tue Jan 27 00:00:00 1970 PST + 627 | 407 | 00627_update7 | Wed Jan 28 00:00:00 1970 PST + 628 | 8 | 00628 | Thu Jan 29 00:00:00 1970 PST + 629 | 509 | 00629_update9 | Fri Jan 30 00:00:00 1970 PST + 630 | 0 | 00630 | Sat Jan 31 00:00:00 1970 PST + 631 | 1 | 00631 | Sun Feb 01 00:00:00 1970 PST + 633 | 303 | 00633_update3 | Tue Feb 03 00:00:00 1970 PST + 634 | 4 | 00634 | Wed Feb 04 00:00:00 1970 PST + 636 | 6 | 00636 | Fri Feb 06 00:00:00 1970 PST + 637 | 407 | 00637_update7 | Sat Feb 07 00:00:00 1970 PST + 638 | 8 | 00638 | Sun Feb 08 00:00:00 1970 PST + 639 | 509 | 00639_update9 | Mon Feb 09 00:00:00 1970 PST + 640 | 0 | 00640 | Tue Feb 10 00:00:00 1970 PST + 641 | 1 | 00641 | Wed Feb 11 00:00:00 1970 PST + 643 | 303 | 00643_update3 | Fri Feb 13 00:00:00 1970 PST + 644 | 4 | 00644 | Sat Feb 14 00:00:00 1970 PST + 646 | 6 | 00646 | Mon Feb 16 00:00:00 1970 PST + 647 | 407 | 00647_update7 | Tue Feb 17 00:00:00 1970 PST + 648 | 8 | 00648 | Wed Feb 18 00:00:00 1970 PST + 649 | 509 | 00649_update9 | Thu Feb 19 00:00:00 1970 PST + 650 | 0 | 00650 | Fri Feb 20 00:00:00 1970 PST + 651 | 1 | 00651 | Sat Feb 21 00:00:00 1970 PST + 653 | 303 | 00653_update3 | Mon Feb 23 00:00:00 1970 PST + 654 | 4 | 00654 | Tue Feb 24 00:00:00 1970 PST + 656 | 6 | 00656 | Thu Feb 26 00:00:00 1970 PST + 657 | 407 | 00657_update7 | Fri Feb 27 00:00:00 1970 PST + 658 | 8 | 00658 | Sat Feb 28 00:00:00 1970 PST + 659 | 509 | 00659_update9 | Sun Mar 01 00:00:00 1970 PST + 660 | 0 | 00660 | Mon Mar 02 00:00:00 1970 PST + 661 | 1 | 00661 | Tue Mar 03 00:00:00 1970 PST + 663 | 303 | 00663_update3 | Thu Mar 05 00:00:00 1970 PST + 664 | 4 | 00664 | Fri Mar 06 00:00:00 1970 PST + 666 | 6 | 00666 | Sun Mar 08 00:00:00 1970 PST + 667 | 407 | 00667_update7 | Mon Mar 09 00:00:00 1970 PST + 668 | 8 | 00668 | Tue Mar 10 00:00:00 1970 PST + 669 | 509 | 00669_update9 | Wed Mar 11 00:00:00 1970 PST + 670 | 0 | 00670 | Thu Mar 12 00:00:00 1970 PST + 671 | 1 | 00671 | Fri Mar 13 00:00:00 1970 PST + 673 | 303 | 00673_update3 | Sun Mar 15 00:00:00 1970 PST + 674 | 4 | 00674 | Mon Mar 16 00:00:00 1970 PST + 676 | 6 | 00676 | Wed Mar 18 00:00:00 1970 PST + 677 | 407 | 00677_update7 | Thu Mar 19 00:00:00 1970 PST + 678 | 8 | 00678 | Fri Mar 20 00:00:00 1970 PST + 679 | 509 | 00679_update9 | Sat Mar 21 00:00:00 1970 PST + 680 | 0 | 00680 | Sun Mar 22 00:00:00 1970 PST + 681 | 1 | 00681 | Mon Mar 23 00:00:00 1970 PST + 683 | 303 | 00683_update3 | Wed Mar 25 00:00:00 1970 PST + 684 | 4 | 00684 | Thu Mar 26 00:00:00 1970 PST + 686 | 6 | 00686 | Sat Mar 28 00:00:00 1970 PST + 687 | 407 | 00687_update7 | Sun Mar 29 00:00:00 1970 PST + 688 | 8 | 00688 | Mon Mar 30 00:00:00 1970 PST + 689 | 509 | 00689_update9 | Tue Mar 31 00:00:00 1970 PST + 690 | 0 | 00690 | Wed Apr 01 00:00:00 1970 PST + 691 | 1 | 00691 | Thu Apr 02 00:00:00 1970 PST + 693 | 303 | 00693_update3 | Sat Apr 04 00:00:00 1970 PST + 694 | 4 | 00694 | Sun Apr 05 00:00:00 1970 PST + 696 | 6 | 00696 | Tue Apr 07 00:00:00 1970 PST + 697 | 407 | 00697_update7 | Wed Apr 08 00:00:00 1970 PST + 698 | 8 | 00698 | Thu Apr 09 00:00:00 1970 PST + 699 | 509 | 00699_update9 | Fri Apr 10 00:00:00 1970 PST + 700 | 0 | 00700 | Thu Jan 01 00:00:00 1970 PST + 701 | 1 | 00701 | Fri Jan 02 00:00:00 1970 PST + 703 | 303 | 00703_update3 | Sun Jan 04 00:00:00 1970 PST + 704 | 4 | 00704 | Mon Jan 05 00:00:00 1970 PST + 706 | 6 | 00706 | Wed Jan 07 00:00:00 1970 PST + 707 | 407 | 00707_update7 | Thu Jan 08 00:00:00 1970 PST + 708 | 8 | 00708 | Fri Jan 09 00:00:00 1970 PST + 709 | 509 | 00709_update9 | Sat Jan 10 00:00:00 1970 PST + 710 | 0 | 00710 | Sun Jan 11 00:00:00 1970 PST + 711 | 1 | 00711 | Mon Jan 12 00:00:00 1970 PST + 713 | 303 | 00713_update3 | Wed Jan 14 00:00:00 1970 PST + 714 | 4 | 00714 | Thu Jan 15 00:00:00 1970 PST + 716 | 6 | 00716 | Sat Jan 17 00:00:00 1970 PST + 717 | 407 | 00717_update7 | Sun Jan 18 00:00:00 1970 PST + 718 | 8 | 00718 | Mon Jan 19 00:00:00 1970 PST + 719 | 509 | 00719_update9 | Tue Jan 20 00:00:00 1970 PST + 720 | 0 | 00720 | Wed Jan 21 00:00:00 1970 PST + 721 | 1 | 00721 | Thu Jan 22 00:00:00 1970 PST + 723 | 303 | 00723_update3 | Sat Jan 24 00:00:00 1970 PST + 724 | 4 | 00724 | Sun Jan 25 00:00:00 1970 PST + 726 | 6 | 00726 | Tue Jan 27 00:00:00 1970 PST + 727 | 407 | 00727_update7 | Wed Jan 28 00:00:00 1970 PST + 728 | 8 | 00728 | Thu Jan 29 00:00:00 1970 PST + 729 | 509 | 00729_update9 | Fri Jan 30 00:00:00 1970 PST + 730 | 0 | 00730 | Sat Jan 31 00:00:00 1970 PST + 731 | 1 | 00731 | Sun Feb 01 00:00:00 1970 PST + 733 | 303 | 00733_update3 | Tue Feb 03 00:00:00 1970 PST + 734 | 4 | 00734 | Wed Feb 04 00:00:00 1970 PST + 736 | 6 | 00736 | Fri Feb 06 00:00:00 1970 PST + 737 | 407 | 00737_update7 | Sat Feb 07 00:00:00 1970 PST + 738 | 8 | 00738 | Sun Feb 08 00:00:00 1970 PST + 739 | 509 | 00739_update9 | Mon Feb 09 00:00:00 1970 PST + 740 | 0 | 00740 | Tue Feb 10 00:00:00 1970 PST + 741 | 1 | 00741 | Wed Feb 11 00:00:00 1970 PST + 743 | 303 | 00743_update3 | Fri Feb 13 00:00:00 1970 PST + 744 | 4 | 00744 | Sat Feb 14 00:00:00 1970 PST + 746 | 6 | 00746 | Mon Feb 16 00:00:00 1970 PST + 747 | 407 | 00747_update7 | Tue Feb 17 00:00:00 1970 PST + 748 | 8 | 00748 | Wed Feb 18 00:00:00 1970 PST + 749 | 509 | 00749_update9 | Thu Feb 19 00:00:00 1970 PST + 750 | 0 | 00750 | Fri Feb 20 00:00:00 1970 PST + 751 | 1 | 00751 | Sat Feb 21 00:00:00 1970 PST + 753 | 303 | 00753_update3 | Mon Feb 23 00:00:00 1970 PST + 754 | 4 | 00754 | Tue Feb 24 00:00:00 1970 PST + 756 | 6 | 00756 | Thu Feb 26 00:00:00 1970 PST + 757 | 407 | 00757_update7 | Fri Feb 27 00:00:00 1970 PST + 758 | 8 | 00758 | Sat Feb 28 00:00:00 1970 PST + 759 | 509 | 00759_update9 | Sun Mar 01 00:00:00 1970 PST + 760 | 0 | 00760 | Mon Mar 02 00:00:00 1970 PST + 761 | 1 | 00761 | Tue Mar 03 00:00:00 1970 PST + 763 | 303 | 00763_update3 | Thu Mar 05 00:00:00 1970 PST + 764 | 4 | 00764 | Fri Mar 06 00:00:00 1970 PST + 766 | 6 | 00766 | Sun Mar 08 00:00:00 1970 PST + 767 | 407 | 00767_update7 | Mon Mar 09 00:00:00 1970 PST + 768 | 8 | 00768 | Tue Mar 10 00:00:00 1970 PST + 769 | 509 | 00769_update9 | Wed Mar 11 00:00:00 1970 PST + 770 | 0 | 00770 | Thu Mar 12 00:00:00 1970 PST + 771 | 1 | 00771 | Fri Mar 13 00:00:00 1970 PST + 773 | 303 | 00773_update3 | Sun Mar 15 00:00:00 1970 PST + 774 | 4 | 00774 | Mon Mar 16 00:00:00 1970 PST + 776 | 6 | 00776 | Wed Mar 18 00:00:00 1970 PST + 777 | 407 | 00777_update7 | Thu Mar 19 00:00:00 1970 PST + 778 | 8 | 00778 | Fri Mar 20 00:00:00 1970 PST + 779 | 509 | 00779_update9 | Sat Mar 21 00:00:00 1970 PST + 780 | 0 | 00780 | Sun Mar 22 00:00:00 1970 PST + 781 | 1 | 00781 | Mon Mar 23 00:00:00 1970 PST + 783 | 303 | 00783_update3 | Wed Mar 25 00:00:00 1970 PST + 784 | 4 | 00784 | Thu Mar 26 00:00:00 1970 PST + 786 | 6 | 00786 | Sat Mar 28 00:00:00 1970 PST + 787 | 407 | 00787_update7 | Sun Mar 29 00:00:00 1970 PST + 788 | 8 | 00788 | Mon Mar 30 00:00:00 1970 PST + 789 | 509 | 00789_update9 | Tue Mar 31 00:00:00 1970 PST + 790 | 0 | 00790 | Wed Apr 01 00:00:00 1970 PST + 791 | 1 | 00791 | Thu Apr 02 00:00:00 1970 PST + 793 | 303 | 00793_update3 | Sat Apr 04 00:00:00 1970 PST + 794 | 4 | 00794 | Sun Apr 05 00:00:00 1970 PST + 796 | 6 | 00796 | Tue Apr 07 00:00:00 1970 PST + 797 | 407 | 00797_update7 | Wed Apr 08 00:00:00 1970 PST + 798 | 8 | 00798 | Thu Apr 09 00:00:00 1970 PST + 799 | 509 | 00799_update9 | Fri Apr 10 00:00:00 1970 PST + 800 | 0 | 00800 | Thu Jan 01 00:00:00 1970 PST + 801 | 1 | 00801 | Fri Jan 02 00:00:00 1970 PST + 803 | 303 | 00803_update3 | Sun Jan 04 00:00:00 1970 PST + 804 | 4 | 00804 | Mon Jan 05 00:00:00 1970 PST + 806 | 6 | 00806 | Wed Jan 07 00:00:00 1970 PST + 807 | 407 | 00807_update7 | Thu Jan 08 00:00:00 1970 PST + 808 | 8 | 00808 | Fri Jan 09 00:00:00 1970 PST + 809 | 509 | 00809_update9 | Sat Jan 10 00:00:00 1970 PST + 810 | 0 | 00810 | Sun Jan 11 00:00:00 1970 PST + 811 | 1 | 00811 | Mon Jan 12 00:00:00 1970 PST + 813 | 303 | 00813_update3 | Wed Jan 14 00:00:00 1970 PST + 814 | 4 | 00814 | Thu Jan 15 00:00:00 1970 PST + 816 | 6 | 00816 | Sat Jan 17 00:00:00 1970 PST + 817 | 407 | 00817_update7 | Sun Jan 18 00:00:00 1970 PST + 818 | 8 | 00818 | Mon Jan 19 00:00:00 1970 PST + 819 | 509 | 00819_update9 | Tue Jan 20 00:00:00 1970 PST + 820 | 0 | 00820 | Wed Jan 21 00:00:00 1970 PST + 821 | 1 | 00821 | Thu Jan 22 00:00:00 1970 PST + 823 | 303 | 00823_update3 | Sat Jan 24 00:00:00 1970 PST + 824 | 4 | 00824 | Sun Jan 25 00:00:00 1970 PST + 826 | 6 | 00826 | Tue Jan 27 00:00:00 1970 PST + 827 | 407 | 00827_update7 | Wed Jan 28 00:00:00 1970 PST + 828 | 8 | 00828 | Thu Jan 29 00:00:00 1970 PST + 829 | 509 | 00829_update9 | Fri Jan 30 00:00:00 1970 PST + 830 | 0 | 00830 | Sat Jan 31 00:00:00 1970 PST + 831 | 1 | 00831 | Sun Feb 01 00:00:00 1970 PST + 833 | 303 | 00833_update3 | Tue Feb 03 00:00:00 1970 PST + 834 | 4 | 00834 | Wed Feb 04 00:00:00 1970 PST + 836 | 6 | 00836 | Fri Feb 06 00:00:00 1970 PST + 837 | 407 | 00837_update7 | Sat Feb 07 00:00:00 1970 PST + 838 | 8 | 00838 | Sun Feb 08 00:00:00 1970 PST + 839 | 509 | 00839_update9 | Mon Feb 09 00:00:00 1970 PST + 840 | 0 | 00840 | Tue Feb 10 00:00:00 1970 PST + 841 | 1 | 00841 | Wed Feb 11 00:00:00 1970 PST + 843 | 303 | 00843_update3 | Fri Feb 13 00:00:00 1970 PST + 844 | 4 | 00844 | Sat Feb 14 00:00:00 1970 PST + 846 | 6 | 00846 | Mon Feb 16 00:00:00 1970 PST + 847 | 407 | 00847_update7 | Tue Feb 17 00:00:00 1970 PST + 848 | 8 | 00848 | Wed Feb 18 00:00:00 1970 PST + 849 | 509 | 00849_update9 | Thu Feb 19 00:00:00 1970 PST + 850 | 0 | 00850 | Fri Feb 20 00:00:00 1970 PST + 851 | 1 | 00851 | Sat Feb 21 00:00:00 1970 PST + 853 | 303 | 00853_update3 | Mon Feb 23 00:00:00 1970 PST + 854 | 4 | 00854 | Tue Feb 24 00:00:00 1970 PST + 856 | 6 | 00856 | Thu Feb 26 00:00:00 1970 PST + 857 | 407 | 00857_update7 | Fri Feb 27 00:00:00 1970 PST + 858 | 8 | 00858 | Sat Feb 28 00:00:00 1970 PST + 859 | 509 | 00859_update9 | Sun Mar 01 00:00:00 1970 PST + 860 | 0 | 00860 | Mon Mar 02 00:00:00 1970 PST + 861 | 1 | 00861 | Tue Mar 03 00:00:00 1970 PST + 863 | 303 | 00863_update3 | Thu Mar 05 00:00:00 1970 PST + 864 | 4 | 00864 | Fri Mar 06 00:00:00 1970 PST + 866 | 6 | 00866 | Sun Mar 08 00:00:00 1970 PST + 867 | 407 | 00867_update7 | Mon Mar 09 00:00:00 1970 PST + 868 | 8 | 00868 | Tue Mar 10 00:00:00 1970 PST + 869 | 509 | 00869_update9 | Wed Mar 11 00:00:00 1970 PST + 870 | 0 | 00870 | Thu Mar 12 00:00:00 1970 PST + 871 | 1 | 00871 | Fri Mar 13 00:00:00 1970 PST + 873 | 303 | 00873_update3 | Sun Mar 15 00:00:00 1970 PST + 874 | 4 | 00874 | Mon Mar 16 00:00:00 1970 PST + 876 | 6 | 00876 | Wed Mar 18 00:00:00 1970 PST + 877 | 407 | 00877_update7 | Thu Mar 19 00:00:00 1970 PST + 878 | 8 | 00878 | Fri Mar 20 00:00:00 1970 PST + 879 | 509 | 00879_update9 | Sat Mar 21 00:00:00 1970 PST + 880 | 0 | 00880 | Sun Mar 22 00:00:00 1970 PST + 881 | 1 | 00881 | Mon Mar 23 00:00:00 1970 PST + 883 | 303 | 00883_update3 | Wed Mar 25 00:00:00 1970 PST + 884 | 4 | 00884 | Thu Mar 26 00:00:00 1970 PST + 886 | 6 | 00886 | Sat Mar 28 00:00:00 1970 PST + 887 | 407 | 00887_update7 | Sun Mar 29 00:00:00 1970 PST + 888 | 8 | 00888 | Mon Mar 30 00:00:00 1970 PST + 889 | 509 | 00889_update9 | Tue Mar 31 00:00:00 1970 PST + 890 | 0 | 00890 | Wed Apr 01 00:00:00 1970 PST + 891 | 1 | 00891 | Thu Apr 02 00:00:00 1970 PST + 893 | 303 | 00893_update3 | Sat Apr 04 00:00:00 1970 PST + 894 | 4 | 00894 | Sun Apr 05 00:00:00 1970 PST + 896 | 6 | 00896 | Tue Apr 07 00:00:00 1970 PST + 897 | 407 | 00897_update7 | Wed Apr 08 00:00:00 1970 PST + 898 | 8 | 00898 | Thu Apr 09 00:00:00 1970 PST + 899 | 509 | 00899_update9 | Fri Apr 10 00:00:00 1970 PST + 900 | 0 | 00900 | Thu Jan 01 00:00:00 1970 PST + 901 | 1 | 00901 | Fri Jan 02 00:00:00 1970 PST + 903 | 303 | 00903_update3 | Sun Jan 04 00:00:00 1970 PST + 904 | 4 | 00904 | Mon Jan 05 00:00:00 1970 PST + 906 | 6 | 00906 | Wed Jan 07 00:00:00 1970 PST + 907 | 407 | 00907_update7 | Thu Jan 08 00:00:00 1970 PST + 908 | 8 | 00908 | Fri Jan 09 00:00:00 1970 PST + 909 | 509 | 00909_update9 | Sat Jan 10 00:00:00 1970 PST + 910 | 0 | 00910 | Sun Jan 11 00:00:00 1970 PST + 911 | 1 | 00911 | Mon Jan 12 00:00:00 1970 PST + 913 | 303 | 00913_update3 | Wed Jan 14 00:00:00 1970 PST + 914 | 4 | 00914 | Thu Jan 15 00:00:00 1970 PST + 916 | 6 | 00916 | Sat Jan 17 00:00:00 1970 PST + 917 | 407 | 00917_update7 | Sun Jan 18 00:00:00 1970 PST + 918 | 8 | 00918 | Mon Jan 19 00:00:00 1970 PST + 919 | 509 | 00919_update9 | Tue Jan 20 00:00:00 1970 PST + 920 | 0 | 00920 | Wed Jan 21 00:00:00 1970 PST + 921 | 1 | 00921 | Thu Jan 22 00:00:00 1970 PST + 923 | 303 | 00923_update3 | Sat Jan 24 00:00:00 1970 PST + 924 | 4 | 00924 | Sun Jan 25 00:00:00 1970 PST + 926 | 6 | 00926 | Tue Jan 27 00:00:00 1970 PST + 927 | 407 | 00927_update7 | Wed Jan 28 00:00:00 1970 PST + 928 | 8 | 00928 | Thu Jan 29 00:00:00 1970 PST + 929 | 509 | 00929_update9 | Fri Jan 30 00:00:00 1970 PST + 930 | 0 | 00930 | Sat Jan 31 00:00:00 1970 PST + 931 | 1 | 00931 | Sun Feb 01 00:00:00 1970 PST + 933 | 303 | 00933_update3 | Tue Feb 03 00:00:00 1970 PST + 934 | 4 | 00934 | Wed Feb 04 00:00:00 1970 PST + 936 | 6 | 00936 | Fri Feb 06 00:00:00 1970 PST + 937 | 407 | 00937_update7 | Sat Feb 07 00:00:00 1970 PST + 938 | 8 | 00938 | Sun Feb 08 00:00:00 1970 PST + 939 | 509 | 00939_update9 | Mon Feb 09 00:00:00 1970 PST + 940 | 0 | 00940 | Tue Feb 10 00:00:00 1970 PST + 941 | 1 | 00941 | Wed Feb 11 00:00:00 1970 PST + 943 | 303 | 00943_update3 | Fri Feb 13 00:00:00 1970 PST + 944 | 4 | 00944 | Sat Feb 14 00:00:00 1970 PST + 946 | 6 | 00946 | Mon Feb 16 00:00:00 1970 PST + 947 | 407 | 00947_update7 | Tue Feb 17 00:00:00 1970 PST + 948 | 8 | 00948 | Wed Feb 18 00:00:00 1970 PST + 949 | 509 | 00949_update9 | Thu Feb 19 00:00:00 1970 PST + 950 | 0 | 00950 | Fri Feb 20 00:00:00 1970 PST + 951 | 1 | 00951 | Sat Feb 21 00:00:00 1970 PST + 953 | 303 | 00953_update3 | Mon Feb 23 00:00:00 1970 PST + 954 | 4 | 00954 | Tue Feb 24 00:00:00 1970 PST + 956 | 6 | 00956 | Thu Feb 26 00:00:00 1970 PST + 957 | 407 | 00957_update7 | Fri Feb 27 00:00:00 1970 PST + 958 | 8 | 00958 | Sat Feb 28 00:00:00 1970 PST + 959 | 509 | 00959_update9 | Sun Mar 01 00:00:00 1970 PST + 960 | 0 | 00960 | Mon Mar 02 00:00:00 1970 PST + 961 | 1 | 00961 | Tue Mar 03 00:00:00 1970 PST + 963 | 303 | 00963_update3 | Thu Mar 05 00:00:00 1970 PST + 964 | 4 | 00964 | Fri Mar 06 00:00:00 1970 PST + 966 | 6 | 00966 | Sun Mar 08 00:00:00 1970 PST + 967 | 407 | 00967_update7 | Mon Mar 09 00:00:00 1970 PST + 968 | 8 | 00968 | Tue Mar 10 00:00:00 1970 PST + 969 | 509 | 00969_update9 | Wed Mar 11 00:00:00 1970 PST + 970 | 0 | 00970 | Thu Mar 12 00:00:00 1970 PST + 971 | 1 | 00971 | Fri Mar 13 00:00:00 1970 PST + 973 | 303 | 00973_update3 | Sun Mar 15 00:00:00 1970 PST + 974 | 4 | 00974 | Mon Mar 16 00:00:00 1970 PST + 976 | 6 | 00976 | Wed Mar 18 00:00:00 1970 PST + 977 | 407 | 00977_update7 | Thu Mar 19 00:00:00 1970 PST + 978 | 8 | 00978 | Fri Mar 20 00:00:00 1970 PST + 979 | 509 | 00979_update9 | Sat Mar 21 00:00:00 1970 PST + 980 | 0 | 00980 | Sun Mar 22 00:00:00 1970 PST + 981 | 1 | 00981 | Mon Mar 23 00:00:00 1970 PST + 983 | 303 | 00983_update3 | Wed Mar 25 00:00:00 1970 PST + 984 | 4 | 00984 | Thu Mar 26 00:00:00 1970 PST + 986 | 6 | 00986 | Sat Mar 28 00:00:00 1970 PST + 987 | 407 | 00987_update7 | Sun Mar 29 00:00:00 1970 PST + 988 | 8 | 00988 | Mon Mar 30 00:00:00 1970 PST + 989 | 509 | 00989_update9 | Tue Mar 31 00:00:00 1970 PST + 990 | 0 | 00990 | Wed Apr 01 00:00:00 1970 PST + 991 | 1 | 00991 | Thu Apr 02 00:00:00 1970 PST + 993 | 303 | 00993_update3 | Sat Apr 04 00:00:00 1970 PST + 994 | 4 | 00994 | Sun Apr 05 00:00:00 1970 PST + 996 | 6 | 00996 | Tue Apr 07 00:00:00 1970 PST + 997 | 407 | 00997_update7 | Wed Apr 08 00:00:00 1970 PST + 998 | 8 | 00998 | Thu Apr 09 00:00:00 1970 PST + 999 | 509 | 00999_update9 | Fri Apr 10 00:00:00 1970 PST + 1000 | 0 | 01000 | Thu Jan 01 00:00:00 1970 PST + 1001 | 101 | 0000100001 | + 1003 | 403 | 0000300003_update3 | + 1004 | 104 | 0000400004 | + 1006 | 106 | 0000600006 | + 1007 | 507 | 0000700007_update7 | + 1008 | 108 | 0000800008 | + 1009 | 609 | 0000900009_update9 | + 1010 | 100 | 0001000010 | + 1011 | 101 | 0001100011 | + 1013 | 403 | 0001300013_update3 | + 1014 | 104 | 0001400014 | + 1016 | 106 | 0001600016 | + 1017 | 507 | 0001700017_update7 | + 1018 | 108 | 0001800018 | + 1019 | 609 | 0001900019_update9 | + 1020 | 100 | 0002000020 | + 1101 | 201 | aaa | + 1103 | 503 | ccc_update3 | + 1104 | 204 | ddd | +(819 rows) + +-- Test that defaults and triggers on remote table work as expected +ALTER TABLE "S 1"."T 1" ALTER c6 SET DEFAULT '(^-^;)'; +CREATE OR REPLACE FUNCTION "S 1".F_BRTRIG() RETURNS trigger AS $$ +BEGIN + NEW.c3 = NEW.c3 || '_trig_update'; + RETURN NEW; +END; +$$ LANGUAGE plpgsql; +CREATE TRIGGER t1_br_insert BEFORE INSERT OR UPDATE + ON "S 1"."T 1" FOR EACH ROW EXECUTE PROCEDURE "S 1".F_BRTRIG(); +INSERT INTO ft2 (c1,c2,c3) VALUES (1208, 218, 'fff') RETURNING *; + c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 +------+-----+-----------------+----+----+--------+----+---- + 1208 | 218 | fff_trig_update | | | (^-^;) | | +(1 row) + +INSERT INTO ft2 (c1,c2,c3,c6) VALUES (1218, 218, 'ggg', '(--;') RETURNING *; + c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 +------+-----+-----------------+----+----+------+----+---- + 1218 | 218 | ggg_trig_update | | | (--; | | +(1 row) + +UPDATE ft2 SET c2 = c2 + 600 WHERE c1 % 10 = 8 RETURNING *; + c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 +------+-----+-----------------------------+------------------------------+--------------------------+--------+------------+----- + 8 | 608 | 00008_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 18 | 608 | 00018_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 28 | 608 | 00028_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 38 | 608 | 00038_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 48 | 608 | 00048_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 58 | 608 | 00058_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 68 | 608 | 00068_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 78 | 608 | 00078_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 88 | 608 | 00088_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 98 | 608 | 00098_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 108 | 608 | 00108_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 118 | 608 | 00118_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 128 | 608 | 00128_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 138 | 608 | 00138_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 148 | 608 | 00148_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 158 | 608 | 00158_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 168 | 608 | 00168_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 178 | 608 | 00178_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 188 | 608 | 00188_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 198 | 608 | 00198_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 208 | 608 | 00208_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 218 | 608 | 00218_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 228 | 608 | 00228_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 238 | 608 | 00238_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 248 | 608 | 00248_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 258 | 608 | 00258_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 268 | 608 | 00268_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 278 | 608 | 00278_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 288 | 608 | 00288_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 298 | 608 | 00298_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 308 | 608 | 00308_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 318 | 608 | 00318_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 328 | 608 | 00328_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 338 | 608 | 00338_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 348 | 608 | 00348_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 358 | 608 | 00358_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 368 | 608 | 00368_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 378 | 608 | 00378_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 388 | 608 | 00388_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 398 | 608 | 00398_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 408 | 608 | 00408_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 418 | 608 | 00418_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 428 | 608 | 00428_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 438 | 608 | 00438_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 448 | 608 | 00448_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 458 | 608 | 00458_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 468 | 608 | 00468_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 478 | 608 | 00478_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 488 | 608 | 00488_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 498 | 608 | 00498_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 508 | 608 | 00508_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 518 | 608 | 00518_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 528 | 608 | 00528_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 538 | 608 | 00538_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 548 | 608 | 00548_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 558 | 608 | 00558_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 568 | 608 | 00568_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 578 | 608 | 00578_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 588 | 608 | 00588_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 598 | 608 | 00598_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 608 | 608 | 00608_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 618 | 608 | 00618_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 628 | 608 | 00628_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 638 | 608 | 00638_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 648 | 608 | 00648_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 658 | 608 | 00658_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 668 | 608 | 00668_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 678 | 608 | 00678_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 688 | 608 | 00688_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 698 | 608 | 00698_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 708 | 608 | 00708_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 718 | 608 | 00718_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 728 | 608 | 00728_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 738 | 608 | 00738_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 748 | 608 | 00748_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 758 | 608 | 00758_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 768 | 608 | 00768_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 778 | 608 | 00778_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 788 | 608 | 00788_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 798 | 608 | 00798_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 808 | 608 | 00808_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 818 | 608 | 00818_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 828 | 608 | 00828_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 838 | 608 | 00838_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 848 | 608 | 00848_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 858 | 608 | 00858_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 868 | 608 | 00868_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 878 | 608 | 00878_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 888 | 608 | 00888_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 898 | 608 | 00898_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 908 | 608 | 00908_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo + 918 | 608 | 00918_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo + 928 | 608 | 00928_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo + 938 | 608 | 00938_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo + 948 | 608 | 00948_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo + 958 | 608 | 00958_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo + 968 | 608 | 00968_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo + 978 | 608 | 00978_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo + 988 | 608 | 00988_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo + 998 | 608 | 00998_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo + 1008 | 708 | 0000800008_trig_update | | | | | + 1018 | 708 | 0001800018_trig_update | | | | | + 1208 | 818 | fff_trig_update_trig_update | | | (^-^;) | | + 1218 | 818 | ggg_trig_update_trig_update | | | (--; | | +(104 rows) + +-- Test errors thrown on remote side during update +ALTER TABLE "S 1"."T 1" ADD CONSTRAINT c2positive CHECK (c2 >= 0); +INSERT INTO ft1(c1, c2) VALUES(11, 12); -- duplicate key +ERROR: duplicate key value violates unique constraint "t1_pkey" +DETAIL: Key ("C 1")=(11) already exists. +CONTEXT: Remote SQL command: INSERT INTO "S 1"."T 1"("C 1", c2) VALUES ($1, $2) +INSERT INTO ft1(c1, c2) VALUES(1111, -2); -- c2positive +ERROR: new row for relation "T 1" violates check constraint "c2positive" +DETAIL: Failing row contains (1111, -2, null, null, null, (^-^;), null, null). +CONTEXT: Remote SQL command: INSERT INTO "S 1"."T 1"("C 1", c2) VALUES ($1, $2) +UPDATE ft1 SET c2 = -c2 WHERE c1 = 1; -- c2positive +ERROR: new row for relation "T 1" violates check constraint "c2positive" +DETAIL: Failing row contains (1, -1, 00001_trig_update, 1970-01-02 03:00:00-05, 1970-01-02 00:00:00, 1, 1 , foo). +CONTEXT: Remote SQL command: UPDATE "S 1"."T 1" SET c2 = $2 WHERE ctid = $1 +-- Test savepoint/rollback behavior +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 0 | 100 + 1 | 100 + 4 | 100 + 6 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 0 | 100 + 1 | 100 + 4 | 100 + 6 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +begin; +update ft2 set c2 = 42 where c2 = 0; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 4 | 100 + 6 | 100 + 42 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +savepoint s1; +update ft2 set c2 = 44 where c2 = 4; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +release savepoint s1; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +savepoint s2; +update ft2 set c2 = 46 where c2 = 6; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 42 | 100 + 44 | 100 + 46 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +rollback to savepoint s2; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +release savepoint s2; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +savepoint s3; +update ft2 set c2 = -2 where c2 = 42; -- fail on remote side +ERROR: new row for relation "T 1" violates check constraint "c2positive" +DETAIL: Failing row contains (10, -2, 00010_trig_update_trig_update, 1970-01-11 03:00:00-05, 1970-01-11 00:00:00, 0, 0 , foo). +CONTEXT: Remote SQL command: UPDATE "S 1"."T 1" SET c2 = $2 WHERE ctid = $1 +rollback to savepoint s3; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +release savepoint s3; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +-- none of the above is committed yet remotely +select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 0 | 100 + 1 | 100 + 4 | 100 + 6 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +commit; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + +select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; + c2 | count +-----+------- + 1 | 100 + 6 | 100 + 42 | 100 + 44 | 100 + 100 | 2 + 101 | 2 + 104 | 2 + 106 | 2 + 201 | 1 + 204 | 1 + 303 | 100 + 403 | 2 + 407 | 100 +(13 rows) + diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c index a46597f02e..a6db061d60 100644 --- a/contrib/postgres_fdw/postgres_fdw.c +++ b/contrib/postgres_fdw/postgres_fdw.c @@ -15,16 +15,21 @@ #include "postgres_fdw.h" #include "access/htup_details.h" +#include "access/sysattr.h" #include "commands/defrem.h" #include "commands/explain.h" #include "commands/vacuum.h" #include "foreign/fdwapi.h" #include "funcapi.h" #include "miscadmin.h" +#include "nodes/makefuncs.h" #include "optimizer/cost.h" #include "optimizer/pathnode.h" #include "optimizer/planmain.h" +#include "optimizer/prep.h" +#include "optimizer/var.h" #include "parser/parsetree.h" +#include "utils/builtins.h" #include "utils/lsyscache.h" #include "utils/memutils.h" @@ -58,7 +63,7 @@ typedef struct PgFdwRelationInfo } PgFdwRelationInfo; /* - * Indexes of FDW-private information stored in fdw_private list. + * Indexes of FDW-private information stored in fdw_private lists. * * We store various information in ForeignScan.fdw_private to pass it from * planner to executor. Specifically there is: @@ -66,26 +71,41 @@ typedef struct PgFdwRelationInfo * 1) SELECT statement text to be sent to the remote server * 2) IDs of PARAM_EXEC Params used in the SELECT statement * - * These items are indexed with the enum FdwPrivateIndex, so an item can be - * fetched with list_nth(). For example, to get the SELECT statement: - * sql = strVal(list_nth(fdw_private, FdwPrivateSelectSql)); + * These items are indexed with the enum FdwScanPrivateIndex, so an item + * can be fetched with list_nth(). For example, to get the SELECT statement: + * sql = strVal(list_nth(fdw_private, FdwScanPrivateSelectSql)); */ -enum FdwPrivateIndex +enum FdwScanPrivateIndex { /* SQL statement to execute remotely (as a String node) */ - FdwPrivateSelectSql, - + FdwScanPrivateSelectSql, /* Integer list of param IDs of PARAM_EXEC Params used in SQL stmt */ - FdwPrivateExternParamIds, + FdwScanPrivateExternParamIds +}; - /* # of elements stored in the list fdw_private */ - FdwPrivateNum +/* + * Similarly, this enum describes what's kept in the fdw_private list for + * a ModifyTable node referencing a postgres_fdw foreign table. We store: + * + * 1) INSERT/UPDATE/DELETE statement text to be sent to the remote server + * 2) Integer list of target attribute numbers for INSERT/UPDATE + * (NIL for a DELETE) + * 3) Boolean flag showing if there's a RETURNING clause + */ +enum FdwModifyPrivateIndex +{ + /* SQL statement to execute remotely (as a String node) */ + FdwModifyPrivateUpdateSql, + /* Integer list of target attribute numbers for INSERT/UPDATE */ + FdwModifyPrivateTargetAttnums, + /* has-returning flag (as an integer Value node) */ + FdwModifyPrivateHasReturning }; /* * Execution state of a foreign scan using postgres_fdw. */ -typedef struct PgFdwExecutionState +typedef struct PgFdwScanState { Relation rel; /* relcache entry for the foreign table */ AttInMetadata *attinmeta; /* attribute datatype conversion metadata */ @@ -113,7 +133,33 @@ typedef struct PgFdwExecutionState /* working memory contexts */ MemoryContext batch_cxt; /* context holding current batch of tuples */ MemoryContext temp_cxt; /* context for per-tuple temporary data */ -} PgFdwExecutionState; +} PgFdwScanState; + +/* + * Execution state of a foreign insert/update/delete operation. + */ +typedef struct PgFdwModifyState +{ + Relation rel; /* relcache entry for the foreign table */ + AttInMetadata *attinmeta; /* attribute datatype conversion metadata */ + + /* for remote query execution */ + PGconn *conn; /* connection for the scan */ + char *p_name; /* name of prepared statement, if created */ + + /* extracted fdw_private data */ + char *query; /* text of INSERT/UPDATE/DELETE command */ + List *target_attrs; /* list of target attribute numbers */ + bool has_returning; /* is there a RETURNING clause? */ + + /* info about parameters for prepared statement */ + AttrNumber ctidAttno; /* attnum of input resjunk ctid column */ + int p_nums; /* number of parameters to transmit */ + FmgrInfo *p_flinfo; /* output conversion functions for them */ + + /* working memory context */ + MemoryContext temp_cxt; /* context for per-tuple temporary data */ +} PgFdwModifyState; /* * Workspace for analyzing a foreign table. @@ -169,12 +215,43 @@ static ForeignScan *postgresGetForeignPlan(PlannerInfo *root, ForeignPath *best_path, List *tlist, List *scan_clauses); -static void postgresExplainForeignScan(ForeignScanState *node, - ExplainState *es); static void postgresBeginForeignScan(ForeignScanState *node, int eflags); static TupleTableSlot *postgresIterateForeignScan(ForeignScanState *node); static void postgresReScanForeignScan(ForeignScanState *node); static void postgresEndForeignScan(ForeignScanState *node); +static void postgresAddForeignUpdateTargets(Query *parsetree, + RangeTblEntry *target_rte, + Relation target_relation); +static List *postgresPlanForeignModify(PlannerInfo *root, + ModifyTable *plan, + Index resultRelation, + int subplan_index); +static void postgresBeginForeignModify(ModifyTableState *mtstate, + ResultRelInfo *resultRelInfo, + List *fdw_private, + int subplan_index, + int eflags); +static TupleTableSlot *postgresExecForeignInsert(EState *estate, + ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); +static TupleTableSlot *postgresExecForeignUpdate(EState *estate, + ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); +static TupleTableSlot *postgresExecForeignDelete(EState *estate, + ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); +static void postgresEndForeignModify(EState *estate, + ResultRelInfo *resultRelInfo); +static void postgresExplainForeignScan(ForeignScanState *node, + ExplainState *es); +static void postgresExplainForeignModify(ModifyTableState *mtstate, + ResultRelInfo *rinfo, + List *fdw_private, + int subplan_index, + ExplainState *es); static bool postgresAnalyzeForeignTable(Relation relation, AcquireSampleRowsFunc *func, BlockNumber *totalpages); @@ -191,6 +268,12 @@ static void get_remote_estimate(const char *sql, static void create_cursor(ForeignScanState *node); static void fetch_more_data(ForeignScanState *node); static void close_cursor(PGconn *conn, unsigned int cursor_number); +static void prepare_foreign_modify(PgFdwModifyState *fmstate); +static const char **convert_prep_stmt_params(PgFdwModifyState *fmstate, + ItemPointer tupleid, + TupleTableSlot *slot); +static void store_returning_result(PgFdwModifyState *fmstate, + TupleTableSlot *slot, PGresult *res); static int postgresAcquireSampleRowsFunc(Relation relation, int elevel, HeapTuple *rows, int targrows, double *totalrows, @@ -214,17 +297,29 @@ postgres_fdw_handler(PG_FUNCTION_ARGS) { FdwRoutine *routine = makeNode(FdwRoutine); - /* Required handler functions. */ + /* Functions for scanning foreign tables */ routine->GetForeignRelSize = postgresGetForeignRelSize; routine->GetForeignPaths = postgresGetForeignPaths; routine->GetForeignPlan = postgresGetForeignPlan; - routine->ExplainForeignScan = postgresExplainForeignScan; routine->BeginForeignScan = postgresBeginForeignScan; routine->IterateForeignScan = postgresIterateForeignScan; routine->ReScanForeignScan = postgresReScanForeignScan; routine->EndForeignScan = postgresEndForeignScan; - /* Optional handler functions. */ + /* Functions for updating foreign tables */ + routine->AddForeignUpdateTargets = postgresAddForeignUpdateTargets; + routine->PlanForeignModify = postgresPlanForeignModify; + routine->BeginForeignModify = postgresBeginForeignModify; + routine->ExecForeignInsert = postgresExecForeignInsert; + routine->ExecForeignUpdate = postgresExecForeignUpdate; + routine->ExecForeignDelete = postgresExecForeignDelete; + routine->EndForeignModify = postgresEndForeignModify; + + /* Support functions for EXPLAIN */ + routine->ExplainForeignScan = postgresExplainForeignScan; + routine->ExplainForeignModify = postgresExplainForeignModify; + + /* Support functions for ANALYZE */ routine->AnalyzeForeignTable = postgresAnalyzeForeignTable; PG_RETURN_POINTER(routine); @@ -249,7 +344,6 @@ postgresGetForeignRelSize(PlannerInfo *root, Oid foreigntableid) { bool use_remote_estimate = false; - ListCell *lc; PgFdwRelationInfo *fpinfo; StringInfo sql; ForeignTable *table; @@ -266,12 +360,14 @@ postgresGetForeignRelSize(PlannerInfo *root, List *param_conds; List *local_conds; List *param_numbers; + Bitmapset *attrs_used; + ListCell *lc; /* * We use PgFdwRelationInfo to pass various information to subsequent * functions. */ - fpinfo = palloc0(sizeof(PgFdwRelationInfo)); + fpinfo = (PgFdwRelationInfo *) palloc0(sizeof(PgFdwRelationInfo)); initStringInfo(&fpinfo->sql); sql = &fpinfo->sql; @@ -303,16 +399,37 @@ postgresGetForeignRelSize(PlannerInfo *root, } /* - * Construct remote query which consists of SELECT, FROM, and WHERE - * clauses. Conditions which contain any Param node are excluded because - * placeholder can't be used in EXPLAIN statement. Such conditions are - * appended later. + * Identify which restriction clauses can be sent to the remote server and + * which can't. Conditions that are remotely executable but contain + * PARAM_EXTERN Params have to be treated separately because we can't use + * placeholders in remote EXPLAIN. */ classifyConditions(root, baserel, &remote_conds, ¶m_conds, &local_conds, ¶m_numbers); - deparseSimpleSql(sql, root, baserel, local_conds); - if (list_length(remote_conds) > 0) - appendWhereClause(sql, true, remote_conds, root); + + /* + * Identify which attributes will need to be retrieved from the remote + * server. These include all attrs needed for joins or final output, plus + * all attrs used in the local_conds. + */ + attrs_used = NULL; + pull_varattnos((Node *) baserel->reltargetlist, baserel->relid, + &attrs_used); + foreach(lc, local_conds) + { + RestrictInfo *rinfo = (RestrictInfo *) lfirst(lc); + + pull_varattnos((Node *) rinfo->clause, baserel->relid, + &attrs_used); + } + + /* + * Construct remote query which consists of SELECT, FROM, and WHERE + * clauses. For now, leave out the param_conds. + */ + deparseSelectSql(sql, root, baserel, attrs_used); + if (remote_conds) + appendWhereClause(sql, root, remote_conds, true); /* * If the table or the server is configured to use remote estimates, @@ -336,7 +453,7 @@ postgresGetForeignRelSize(PlannerInfo *root, userid = rte->checkAsUser ? rte->checkAsUser : GetUserId(); user = GetUserMapping(userid, server->serverid); - conn = GetConnection(server, user); + conn = GetConnection(server, user, false); get_remote_estimate(sql->data, conn, &rows, &width, &startup_cost, &total_cost); ReleaseConnection(conn); @@ -403,11 +520,53 @@ postgresGetForeignRelSize(PlannerInfo *root, /* * Finish deparsing remote query by adding conditions which were unusable - * in remote EXPLAIN since they contain Param nodes. + * in remote EXPLAIN because they contain Param nodes. */ - if (list_length(param_conds) > 0) - appendWhereClause(sql, !(list_length(remote_conds) > 0), param_conds, - root); + if (param_conds) + appendWhereClause(sql, root, param_conds, (remote_conds == NIL)); + + /* + * Add FOR UPDATE/SHARE if appropriate. We apply locking during the + * initial row fetch, rather than later on as is done for local tables. + * The extra roundtrips involved in trying to duplicate the local + * semantics exactly don't seem worthwhile (see also comments for + * RowMarkType). + */ + if (baserel->relid == root->parse->resultRelation && + (root->parse->commandType == CMD_UPDATE || + root->parse->commandType == CMD_DELETE)) + { + /* Relation is UPDATE/DELETE target, so use FOR UPDATE */ + appendStringInfo(sql, " FOR UPDATE"); + } + else + { + RowMarkClause *rc = get_parse_rowmark(root->parse, baserel->relid); + + if (rc) + { + /* + * Relation is specified as a FOR UPDATE/SHARE target, so handle + * that. + * + * For now, just ignore any [NO] KEY specification, since (a) it's + * not clear what that means for a remote table that we don't have + * complete information about, and (b) it wouldn't work anyway on + * older remote servers. Likewise, we don't worry about NOWAIT. + */ + switch (rc->strength) + { + case LCS_FORKEYSHARE: + case LCS_FORSHARE: + appendStringInfo(sql, " FOR SHARE"); + break; + case LCS_FORNOKEYUPDATE: + case LCS_FORUPDATE: + appendStringInfo(sql, " FOR UPDATE"); + break; + } + } + } /* * Store obtained information into FDW-private area of RelOptInfo so it's @@ -477,7 +636,7 @@ postgresGetForeignPaths(PlannerInfo *root, /* * Build the fdw_private list that will be available to the executor. - * Items in the list must match enum FdwPrivateIndex, above. + * Items in the list must match enum FdwScanPrivateIndex, above. */ fdw_private = list_make2(makeString(fpinfo->sql.data), fpinfo->param_numbers); @@ -573,24 +732,6 @@ postgresGetForeignPlan(PlannerInfo *root, fdw_private); } -/* - * postgresExplainForeignScan - * Produce extra output for EXPLAIN - */ -static void -postgresExplainForeignScan(ForeignScanState *node, ExplainState *es) -{ - List *fdw_private; - char *sql; - - if (es->verbose) - { - fdw_private = ((ForeignScan *) node->ss.ps.plan)->fdw_private; - sql = strVal(list_nth(fdw_private, FdwPrivateSelectSql)); - ExplainPropertyText("Remote SQL", sql, es); - } -} - /* * postgresBeginForeignScan * Initiate an executor scan of a foreign PostgreSQL table. @@ -600,7 +741,7 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) { ForeignScan *fsplan = (ForeignScan *) node->ss.ps.plan; EState *estate = node->ss.ps.state; - PgFdwExecutionState *festate; + PgFdwScanState *fsstate; RangeTblEntry *rte; Oid userid; ForeignTable *table; @@ -619,8 +760,8 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) /* * We'll save private state in node->fdw_state. */ - festate = (PgFdwExecutionState *) palloc0(sizeof(PgFdwExecutionState)); - node->fdw_state = (void *) festate; + fsstate = (PgFdwScanState *) palloc0(sizeof(PgFdwScanState)); + node->fdw_state = (void *) fsstate; /* * Identify which user to do the remote access as. This should match what @@ -630,8 +771,8 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) userid = rte->checkAsUser ? rte->checkAsUser : GetUserId(); /* Get info about foreign table. */ - festate->rel = node->ss.ss_currentRelation; - table = GetForeignTable(RelationGetRelid(festate->rel)); + fsstate->rel = node->ss.ss_currentRelation; + table = GetForeignTable(RelationGetRelid(fsstate->rel)); server = GetForeignServer(table->serverid); user = GetUserMapping(userid, server->serverid); @@ -639,29 +780,29 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) * Get connection to the foreign server. Connection manager will * establish new connection if necessary. */ - festate->conn = GetConnection(server, user); + fsstate->conn = GetConnection(server, user, false); /* Assign a unique ID for my cursor */ - festate->cursor_number = GetCursorNumber(festate->conn); - festate->cursor_exists = false; + fsstate->cursor_number = GetCursorNumber(fsstate->conn); + fsstate->cursor_exists = false; /* Get private info created by planner functions. */ - festate->fdw_private = fsplan->fdw_private; + fsstate->fdw_private = fsplan->fdw_private; /* Create contexts for batches of tuples and per-tuple temp workspace. */ - festate->batch_cxt = AllocSetContextCreate(estate->es_query_cxt, + fsstate->batch_cxt = AllocSetContextCreate(estate->es_query_cxt, "postgres_fdw tuple data", ALLOCSET_DEFAULT_MINSIZE, ALLOCSET_DEFAULT_INITSIZE, ALLOCSET_DEFAULT_MAXSIZE); - festate->temp_cxt = AllocSetContextCreate(estate->es_query_cxt, + fsstate->temp_cxt = AllocSetContextCreate(estate->es_query_cxt, "postgres_fdw temporary data", ALLOCSET_SMALL_MINSIZE, ALLOCSET_SMALL_INITSIZE, ALLOCSET_SMALL_MAXSIZE); /* Get info we'll need for data conversion. */ - festate->attinmeta = TupleDescGetAttInMetadata(RelationGetDescr(festate->rel)); + fsstate->attinmeta = TupleDescGetAttInMetadata(RelationGetDescr(fsstate->rel)); /* * Allocate buffer for query parameters, if the remote conditions use any. @@ -673,7 +814,7 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) * null values that are arbitrarily marked as being of type int4. */ param_numbers = (List *) - list_nth(festate->fdw_private, FdwPrivateExternParamIds); + list_nth(fsstate->fdw_private, FdwScanPrivateExternParamIds); if (param_numbers != NIL) { ParamListInfo params = estate->es_param_list_info; @@ -682,21 +823,21 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) } else numParams = 0; - festate->numParams = numParams; + fsstate->numParams = numParams; if (numParams > 0) { /* we initially fill all slots with value = NULL, type = int4 */ - festate->param_types = (Oid *) palloc(numParams * sizeof(Oid)); - festate->param_values = (const char **) palloc0(numParams * sizeof(char *)); + fsstate->param_types = (Oid *) palloc(numParams * sizeof(Oid)); + fsstate->param_values = (const char **) palloc0(numParams * sizeof(char *)); for (i = 0; i < numParams; i++) - festate->param_types[i] = INT4OID; + fsstate->param_types[i] = INT4OID; } else { - festate->param_types = NULL; - festate->param_values = NULL; + fsstate->param_types = NULL; + fsstate->param_values = NULL; } - festate->extparams_done = false; + fsstate->extparams_done = false; } /* @@ -707,33 +848,33 @@ postgresBeginForeignScan(ForeignScanState *node, int eflags) static TupleTableSlot * postgresIterateForeignScan(ForeignScanState *node) { - PgFdwExecutionState *festate = (PgFdwExecutionState *) node->fdw_state; + PgFdwScanState *fsstate = (PgFdwScanState *) node->fdw_state; TupleTableSlot *slot = node->ss.ss_ScanTupleSlot; /* * If this is the first call after Begin or ReScan, we need to create the * cursor on the remote side. */ - if (!festate->cursor_exists) + if (!fsstate->cursor_exists) create_cursor(node); /* * Get some more tuples, if we've run out. */ - if (festate->next_tuple >= festate->num_tuples) + if (fsstate->next_tuple >= fsstate->num_tuples) { /* No point in another fetch if we already detected EOF, though. */ - if (!festate->eof_reached) + if (!fsstate->eof_reached) fetch_more_data(node); /* If we didn't get any tuples, must be end of data. */ - if (festate->next_tuple >= festate->num_tuples) + if (fsstate->next_tuple >= fsstate->num_tuples) return ExecClearTuple(slot); } /* * Return the next tuple. */ - ExecStoreTuple(festate->tuples[festate->next_tuple++], + ExecStoreTuple(fsstate->tuples[fsstate->next_tuple++], slot, InvalidBuffer, false); @@ -748,7 +889,7 @@ postgresIterateForeignScan(ForeignScanState *node) static void postgresReScanForeignScan(ForeignScanState *node) { - PgFdwExecutionState *festate = (PgFdwExecutionState *) node->fdw_state; + PgFdwScanState *fsstate = (PgFdwScanState *) node->fdw_state; char sql[64]; PGresult *res; @@ -758,7 +899,7 @@ postgresReScanForeignScan(ForeignScanState *node) */ /* If we haven't created the cursor yet, nothing to do. */ - if (!festate->cursor_exists) + if (!fsstate->cursor_exists) return; /* @@ -769,19 +910,19 @@ postgresReScanForeignScan(ForeignScanState *node) */ if (node->ss.ps.chgParam != NULL) { - festate->cursor_exists = false; + fsstate->cursor_exists = false; snprintf(sql, sizeof(sql), "CLOSE c%u", - festate->cursor_number); + fsstate->cursor_number); } - else if (festate->fetch_ct_2 > 1) + else if (fsstate->fetch_ct_2 > 1) { snprintf(sql, sizeof(sql), "MOVE BACKWARD ALL IN c%u", - festate->cursor_number); + fsstate->cursor_number); } else { /* Easy: just rescan what we already have in memory, if anything */ - festate->next_tuple = 0; + fsstate->next_tuple = 0; return; } @@ -789,17 +930,17 @@ postgresReScanForeignScan(ForeignScanState *node) * We don't use a PG_TRY block here, so be careful not to throw error * without releasing the PGresult. */ - res = PQexec(festate->conn, sql); + res = PQexec(fsstate->conn, sql); if (PQresultStatus(res) != PGRES_COMMAND_OK) pgfdw_report_error(ERROR, res, true, sql); PQclear(res); /* Now force a fresh FETCH. */ - festate->tuples = NULL; - festate->num_tuples = 0; - festate->next_tuple = 0; - festate->fetch_ct_2 = 0; - festate->eof_reached = false; + fsstate->tuples = NULL; + fsstate->num_tuples = 0; + fsstate->next_tuple = 0; + fsstate->fetch_ct_2 = 0; + fsstate->eof_reached = false; } /* @@ -809,23 +950,529 @@ postgresReScanForeignScan(ForeignScanState *node) static void postgresEndForeignScan(ForeignScanState *node) { - PgFdwExecutionState *festate = (PgFdwExecutionState *) node->fdw_state; + PgFdwScanState *fsstate = (PgFdwScanState *) node->fdw_state; - /* if festate is NULL, we are in EXPLAIN; nothing to do */ - if (festate == NULL) + /* if fsstate is NULL, we are in EXPLAIN; nothing to do */ + if (fsstate == NULL) return; /* Close the cursor if open, to prevent accumulation of cursors */ - if (festate->cursor_exists) - close_cursor(festate->conn, festate->cursor_number); + if (fsstate->cursor_exists) + close_cursor(fsstate->conn, fsstate->cursor_number); /* Release remote connection */ - ReleaseConnection(festate->conn); - festate->conn = NULL; + ReleaseConnection(fsstate->conn); + fsstate->conn = NULL; /* MemoryContexts will be deleted automatically. */ } +/* + * postgresAddForeignUpdateTargets + * Add resjunk column(s) needed for update/delete on a foreign table + */ +static void +postgresAddForeignUpdateTargets(Query *parsetree, + RangeTblEntry *target_rte, + Relation target_relation) +{ + Var *var; + const char *attrname; + TargetEntry *tle; + + /* + * In postgres_fdw, what we need is the ctid, same as for a regular table. + */ + + /* Make a Var representing the desired value */ + var = makeVar(parsetree->resultRelation, + SelfItemPointerAttributeNumber, + TIDOID, + -1, + InvalidOid, + 0); + + /* Wrap it in a resjunk TLE with the right name ... */ + attrname = "ctid"; + + tle = makeTargetEntry((Expr *) var, + list_length(parsetree->targetList) + 1, + pstrdup(attrname), + true); + + /* ... and add it to the query's targetlist */ + parsetree->targetList = lappend(parsetree->targetList, tle); +} + +/* + * postgresPlanForeignModify + * Plan an insert/update/delete operation on a foreign table + * + * Note: currently, the plan tree generated for UPDATE/DELETE will always + * include a ForeignScan that retrieves ctids (using SELECT FOR UPDATE) + * and then the ModifyTable node will have to execute individual remote + * UPDATE/DELETE commands. If there are no local conditions or joins + * needed, it'd be better to let the scan node do UPDATE/DELETE RETURNING + * and then do nothing at ModifyTable. Room for future optimization ... + */ +static List * +postgresPlanForeignModify(PlannerInfo *root, + ModifyTable *plan, + Index resultRelation, + int subplan_index) +{ + CmdType operation = plan->operation; + StringInfoData sql; + List *targetAttrs = NIL; + List *returningList = NIL; + + initStringInfo(&sql); + + /* + * Construct a list of the columns that are to be assigned during INSERT + * or UPDATE. We should transmit only these columns, for performance and + * to respect any DEFAULT values the remote side may have for other + * columns. (XXX this will need some re-thinking when we support default + * expressions for foreign tables.) + */ + if (operation == CMD_INSERT || operation == CMD_UPDATE) + { + RangeTblEntry *rte = planner_rt_fetch(resultRelation, root); + Bitmapset *tmpset = bms_copy(rte->modifiedCols); + AttrNumber col; + + while ((col = bms_first_member(tmpset)) >= 0) + { + col += FirstLowInvalidHeapAttributeNumber; + if (col <= InvalidAttrNumber) /* shouldn't happen */ + elog(ERROR, "system-column update is not supported"); + targetAttrs = lappend_int(targetAttrs, col); + } + } + + /* + * Extract the relevant RETURNING list if any. + */ + if (plan->returningLists) + returningList = (List *) list_nth(plan->returningLists, subplan_index); + + /* + * Construct the SQL command string. + */ + switch (operation) + { + case CMD_INSERT: + deparseInsertSql(&sql, root, resultRelation, + targetAttrs, returningList); + break; + case CMD_UPDATE: + deparseUpdateSql(&sql, root, resultRelation, + targetAttrs, returningList); + break; + case CMD_DELETE: + deparseDeleteSql(&sql, root, resultRelation, returningList); + break; + default: + elog(ERROR, "unexpected operation: %d", (int) operation); + break; + } + + /* + * Build the fdw_private list that will be available to the executor. + * Items in the list must match enum FdwModifyPrivateIndex, above. + */ + return list_make3(makeString(sql.data), + targetAttrs, + makeInteger((returningList != NIL))); +} + +/* + * postgresBeginForeignModify + * Begin an insert/update/delete operation on a foreign table + */ +static void +postgresBeginForeignModify(ModifyTableState *mtstate, + ResultRelInfo *resultRelInfo, + List *fdw_private, + int subplan_index, + int eflags) +{ + PgFdwModifyState *fmstate; + EState *estate = mtstate->ps.state; + CmdType operation = mtstate->operation; + Relation rel = resultRelInfo->ri_RelationDesc; + RangeTblEntry *rte; + Oid userid; + ForeignTable *table; + ForeignServer *server; + UserMapping *user; + AttrNumber n_params; + Oid typefnoid; + bool isvarlena; + ListCell *lc; + + /* + * Do nothing in EXPLAIN (no ANALYZE) case. resultRelInfo->ri_FdwState + * stays NULL. + */ + if (eflags & EXEC_FLAG_EXPLAIN_ONLY) + return; + + /* Begin constructing PgFdwModifyState. */ + fmstate = (PgFdwModifyState *) palloc0(sizeof(PgFdwModifyState)); + fmstate->rel = rel; + + /* + * Identify which user to do the remote access as. This should match what + * ExecCheckRTEPerms() does. + */ + rte = rt_fetch(resultRelInfo->ri_RangeTableIndex, estate->es_range_table); + userid = rte->checkAsUser ? rte->checkAsUser : GetUserId(); + + /* Get info about foreign table. */ + table = GetForeignTable(RelationGetRelid(rel)); + server = GetForeignServer(table->serverid); + user = GetUserMapping(userid, server->serverid); + + /* Open connection; report that we'll create a prepared statement. */ + fmstate->conn = GetConnection(server, user, true); + fmstate->p_name = NULL; /* prepared statement not made yet */ + + /* Deconstruct fdw_private data. */ + fmstate->query = strVal(list_nth(fdw_private, + FdwModifyPrivateUpdateSql)); + fmstate->target_attrs = (List *) list_nth(fdw_private, + FdwModifyPrivateTargetAttnums); + fmstate->has_returning = intVal(list_nth(fdw_private, + FdwModifyPrivateHasReturning)); + + /* Create context for per-tuple temp workspace. */ + fmstate->temp_cxt = AllocSetContextCreate(estate->es_query_cxt, + "postgres_fdw temporary data", + ALLOCSET_SMALL_MINSIZE, + ALLOCSET_SMALL_INITSIZE, + ALLOCSET_SMALL_MAXSIZE); + + /* Prepare for input conversion of RETURNING results. */ + if (fmstate->has_returning) + fmstate->attinmeta = TupleDescGetAttInMetadata(RelationGetDescr(rel)); + + /* Prepare for output conversion of parameters used in prepared stmt. */ + n_params = list_length(fmstate->target_attrs) + 1; + fmstate->p_flinfo = (FmgrInfo *) palloc0(sizeof(FmgrInfo) * n_params); + fmstate->p_nums = 0; + + if (operation == CMD_UPDATE || operation == CMD_DELETE) + { + /* Find the ctid resjunk column in the subplan's result */ + Plan *subplan = mtstate->mt_plans[subplan_index]->plan; + + fmstate->ctidAttno = ExecFindJunkAttributeInTlist(subplan->targetlist, + "ctid"); + if (!AttributeNumberIsValid(fmstate->ctidAttno)) + elog(ERROR, "could not find junk ctid column"); + + /* First transmittable parameter will be ctid */ + getTypeOutputInfo(TIDOID, &typefnoid, &isvarlena); + fmgr_info(typefnoid, &fmstate->p_flinfo[fmstate->p_nums]); + fmstate->p_nums++; + } + + if (operation == CMD_INSERT || operation == CMD_UPDATE) + { + /* Set up for remaining transmittable parameters */ + foreach(lc, fmstate->target_attrs) + { + int attnum = lfirst_int(lc); + Form_pg_attribute attr = RelationGetDescr(rel)->attrs[attnum - 1]; + + Assert(!attr->attisdropped); + + getTypeOutputInfo(attr->atttypid, &typefnoid, &isvarlena); + fmgr_info(typefnoid, &fmstate->p_flinfo[fmstate->p_nums]); + fmstate->p_nums++; + } + } + + Assert(fmstate->p_nums <= n_params); + + resultRelInfo->ri_FdwState = fmstate; +} + +/* + * postgresExecForeignInsert + * Insert one row into a foreign table + */ +static TupleTableSlot * +postgresExecForeignInsert(EState *estate, + ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot) +{ + PgFdwModifyState *fmstate = (PgFdwModifyState *) resultRelInfo->ri_FdwState; + const char **p_values; + PGresult *res; + int n_rows; + + /* Set up the prepared statement on the remote server, if we didn't yet */ + if (!fmstate->p_name) + prepare_foreign_modify(fmstate); + + /* Convert parameters needed by prepared statement to text form */ + p_values = convert_prep_stmt_params(fmstate, NULL, slot); + + /* + * Execute the prepared statement, and check for success. + * + * We don't use a PG_TRY block here, so be careful not to throw error + * without releasing the PGresult. + */ + res = PQexecPrepared(fmstate->conn, + fmstate->p_name, + fmstate->p_nums, + p_values, + NULL, + NULL, + 0); + if (PQresultStatus(res) != + (fmstate->has_returning ? PGRES_TUPLES_OK : PGRES_COMMAND_OK)) + pgfdw_report_error(ERROR, res, true, fmstate->query); + + /* Check number of rows affected, and fetch RETURNING tuple if any */ + if (fmstate->has_returning) + { + n_rows = PQntuples(res); + if (n_rows > 0) + store_returning_result(fmstate, slot, res); + } + else + n_rows = atoi(PQcmdTuples(res)); + + /* And clean up */ + PQclear(res); + + MemoryContextReset(fmstate->temp_cxt); + + /* Return NULL if nothing was inserted on the remote end */ + return (n_rows > 0) ? slot : NULL; +} + +/* + * postgresExecForeignUpdate + * Update one row in a foreign table + */ +static TupleTableSlot * +postgresExecForeignUpdate(EState *estate, + ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot) +{ + PgFdwModifyState *fmstate = (PgFdwModifyState *) resultRelInfo->ri_FdwState; + Datum datum; + bool isNull; + const char **p_values; + PGresult *res; + int n_rows; + + /* Set up the prepared statement on the remote server, if we didn't yet */ + if (!fmstate->p_name) + prepare_foreign_modify(fmstate); + + /* Get the ctid that was passed up as a resjunk column */ + datum = ExecGetJunkAttribute(planSlot, + fmstate->ctidAttno, + &isNull); + /* shouldn't ever get a null result... */ + if (isNull) + elog(ERROR, "ctid is NULL"); + + /* Convert parameters needed by prepared statement to text form */ + p_values = convert_prep_stmt_params(fmstate, + (ItemPointer) DatumGetPointer(datum), + slot); + + /* + * Execute the prepared statement, and check for success. + * + * We don't use a PG_TRY block here, so be careful not to throw error + * without releasing the PGresult. + */ + res = PQexecPrepared(fmstate->conn, + fmstate->p_name, + fmstate->p_nums, + p_values, + NULL, + NULL, + 0); + if (PQresultStatus(res) != + (fmstate->has_returning ? PGRES_TUPLES_OK : PGRES_COMMAND_OK)) + pgfdw_report_error(ERROR, res, true, fmstate->query); + + /* Check number of rows affected, and fetch RETURNING tuple if any */ + if (fmstate->has_returning) + { + n_rows = PQntuples(res); + if (n_rows > 0) + store_returning_result(fmstate, slot, res); + } + else + n_rows = atoi(PQcmdTuples(res)); + + /* And clean up */ + PQclear(res); + + MemoryContextReset(fmstate->temp_cxt); + + /* Return NULL if nothing was updated on the remote end */ + return (n_rows > 0) ? slot : NULL; +} + +/* + * postgresExecForeignDelete + * Delete one row from a foreign table + */ +static TupleTableSlot * +postgresExecForeignDelete(EState *estate, + ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot) +{ + PgFdwModifyState *fmstate = (PgFdwModifyState *) resultRelInfo->ri_FdwState; + Datum datum; + bool isNull; + const char **p_values; + PGresult *res; + int n_rows; + + /* Set up the prepared statement on the remote server, if we didn't yet */ + if (!fmstate->p_name) + prepare_foreign_modify(fmstate); + + /* Get the ctid that was passed up as a resjunk column */ + datum = ExecGetJunkAttribute(planSlot, + fmstate->ctidAttno, + &isNull); + /* shouldn't ever get a null result... */ + if (isNull) + elog(ERROR, "ctid is NULL"); + + /* Convert parameters needed by prepared statement to text form */ + p_values = convert_prep_stmt_params(fmstate, + (ItemPointer) DatumGetPointer(datum), + NULL); + + /* + * Execute the prepared statement, and check for success. + * + * We don't use a PG_TRY block here, so be careful not to throw error + * without releasing the PGresult. + */ + res = PQexecPrepared(fmstate->conn, + fmstate->p_name, + fmstate->p_nums, + p_values, + NULL, + NULL, + 0); + if (PQresultStatus(res) != + (fmstate->has_returning ? PGRES_TUPLES_OK : PGRES_COMMAND_OK)) + pgfdw_report_error(ERROR, res, true, fmstate->query); + + /* Check number of rows affected, and fetch RETURNING tuple if any */ + if (fmstate->has_returning) + { + n_rows = PQntuples(res); + if (n_rows > 0) + store_returning_result(fmstate, slot, res); + } + else + n_rows = atoi(PQcmdTuples(res)); + + /* And clean up */ + PQclear(res); + + MemoryContextReset(fmstate->temp_cxt); + + /* Return NULL if nothing was deleted on the remote end */ + return (n_rows > 0) ? slot : NULL; +} + +/* + * postgresEndForeignModify + * Finish an insert/update/delete operation on a foreign table + */ +static void +postgresEndForeignModify(EState *estate, + ResultRelInfo *resultRelInfo) +{ + PgFdwModifyState *fmstate = (PgFdwModifyState *) resultRelInfo->ri_FdwState; + + /* If fmstate is NULL, we are in EXPLAIN; nothing to do */ + if (fmstate == NULL) + return; + + /* If we created a prepared statement, destroy it */ + if (fmstate->p_name) + { + char sql[64]; + PGresult *res; + + snprintf(sql, sizeof(sql), "DEALLOCATE %s", fmstate->p_name); + + /* + * We don't use a PG_TRY block here, so be careful not to throw error + * without releasing the PGresult. + */ + res = PQexec(fmstate->conn, sql); + if (PQresultStatus(res) != PGRES_COMMAND_OK) + pgfdw_report_error(ERROR, res, true, sql); + PQclear(res); + fmstate->p_name = NULL; + } + + /* Release remote connection */ + ReleaseConnection(fmstate->conn); + fmstate->conn = NULL; +} + +/* + * postgresExplainForeignScan + * Produce extra output for EXPLAIN of a ForeignScan on a foreign table + */ +static void +postgresExplainForeignScan(ForeignScanState *node, ExplainState *es) +{ + List *fdw_private; + char *sql; + + if (es->verbose) + { + fdw_private = ((ForeignScan *) node->ss.ps.plan)->fdw_private; + sql = strVal(list_nth(fdw_private, FdwScanPrivateSelectSql)); + ExplainPropertyText("Remote SQL", sql, es); + } +} + +/* + * postgresExplainForeignModify + * Produce extra output for EXPLAIN of a ModifyTable on a foreign table + */ +static void +postgresExplainForeignModify(ModifyTableState *mtstate, + ResultRelInfo *rinfo, + List *fdw_private, + int subplan_index, + ExplainState *es) +{ + if (es->verbose) + { + char *sql = strVal(list_nth(fdw_private, + FdwModifyPrivateUpdateSql)); + + ExplainPropertyText("Remote SQL", sql, es); + } +} + /* * Estimate costs of executing given SQL statement. */ @@ -885,11 +1532,11 @@ get_remote_estimate(const char *sql, PGconn *conn, static void create_cursor(ForeignScanState *node) { - PgFdwExecutionState *festate = (PgFdwExecutionState *) node->fdw_state; - int numParams = festate->numParams; - Oid *types = festate->param_types; - const char **values = festate->param_values; - PGconn *conn = festate->conn; + PgFdwScanState *fsstate = (PgFdwScanState *) node->fdw_state; + int numParams = fsstate->numParams; + Oid *types = fsstate->param_types; + const char **values = fsstate->param_values; + PGconn *conn = fsstate->conn; char *sql; StringInfoData buf; PGresult *res; @@ -904,14 +1551,14 @@ create_cursor(ForeignScanState *node) * recreate the cursor after a rescan, so we could need to re-use the * values anyway. */ - if (numParams > 0 && !festate->extparams_done) + if (numParams > 0 && !fsstate->extparams_done) { ParamListInfo params = node->ss.ps.state->es_param_list_info; List *param_numbers; ListCell *lc; param_numbers = (List *) - list_nth(festate->fdw_private, FdwPrivateExternParamIds); + list_nth(fsstate->fdw_private, FdwScanPrivateExternParamIds); foreach(lc, param_numbers) { int paramno = lfirst_int(lc); @@ -929,8 +1576,8 @@ create_cursor(ForeignScanState *node) * same OIDs we do for the parameters' types. * * We'd not need to pass a type array to PQexecParams at all, - * except that there may be unused holes in the array, which - * will have to be filled with something or the remote server will + * except that there may be unused holes in the array, which will + * have to be filled with something or the remote server will * complain. We arbitrarily set them to INT4OID earlier. */ types[paramno - 1] = InvalidOid; @@ -951,14 +1598,14 @@ create_cursor(ForeignScanState *node) prm->value); } } - festate->extparams_done = true; + fsstate->extparams_done = true; } /* Construct the DECLARE CURSOR command */ - sql = strVal(list_nth(festate->fdw_private, FdwPrivateSelectSql)); + sql = strVal(list_nth(fsstate->fdw_private, FdwScanPrivateSelectSql)); initStringInfo(&buf); appendStringInfo(&buf, "DECLARE c%u CURSOR FOR\n%s", - festate->cursor_number, sql); + fsstate->cursor_number, sql); /* * We don't use a PG_TRY block here, so be careful not to throw error @@ -971,12 +1618,12 @@ create_cursor(ForeignScanState *node) PQclear(res); /* Mark the cursor as created, and show no tuples have been retrieved */ - festate->cursor_exists = true; - festate->tuples = NULL; - festate->num_tuples = 0; - festate->next_tuple = 0; - festate->fetch_ct_2 = 0; - festate->eof_reached = false; + fsstate->cursor_exists = true; + fsstate->tuples = NULL; + fsstate->num_tuples = 0; + fsstate->next_tuple = 0; + fsstate->fetch_ct_2 = 0; + fsstate->eof_reached = false; /* Clean up */ pfree(buf.data); @@ -988,7 +1635,7 @@ create_cursor(ForeignScanState *node) static void fetch_more_data(ForeignScanState *node) { - PgFdwExecutionState *festate = (PgFdwExecutionState *) node->fdw_state; + PgFdwScanState *fsstate = (PgFdwScanState *) node->fdw_state; PGresult *volatile res = NULL; MemoryContext oldcontext; @@ -996,14 +1643,14 @@ fetch_more_data(ForeignScanState *node) * We'll store the tuples in the batch_cxt. First, flush the previous * batch. */ - festate->tuples = NULL; - MemoryContextReset(festate->batch_cxt); - oldcontext = MemoryContextSwitchTo(festate->batch_cxt); + fsstate->tuples = NULL; + MemoryContextReset(fsstate->batch_cxt); + oldcontext = MemoryContextSwitchTo(fsstate->batch_cxt); /* PGresult must be released before leaving this function. */ PG_TRY(); { - PGconn *conn = festate->conn; + PGconn *conn = fsstate->conn; char sql[64]; int fetch_size; int numrows; @@ -1013,36 +1660,36 @@ fetch_more_data(ForeignScanState *node) fetch_size = 100; snprintf(sql, sizeof(sql), "FETCH %d FROM c%u", - fetch_size, festate->cursor_number); + fetch_size, fsstate->cursor_number); res = PQexec(conn, sql); /* On error, report the original query, not the FETCH. */ if (PQresultStatus(res) != PGRES_TUPLES_OK) pgfdw_report_error(ERROR, res, false, - strVal(list_nth(festate->fdw_private, - FdwPrivateSelectSql))); + strVal(list_nth(fsstate->fdw_private, + FdwScanPrivateSelectSql))); /* Convert the data into HeapTuples */ numrows = PQntuples(res); - festate->tuples = (HeapTuple *) palloc0(numrows * sizeof(HeapTuple)); - festate->num_tuples = numrows; - festate->next_tuple = 0; + fsstate->tuples = (HeapTuple *) palloc0(numrows * sizeof(HeapTuple)); + fsstate->num_tuples = numrows; + fsstate->next_tuple = 0; for (i = 0; i < numrows; i++) { - festate->tuples[i] = + fsstate->tuples[i] = make_tuple_from_result_row(res, i, - festate->rel, - festate->attinmeta, - festate->temp_cxt); + fsstate->rel, + fsstate->attinmeta, + fsstate->temp_cxt); } /* Update fetch_ct_2 */ - if (festate->fetch_ct_2 < 2) - festate->fetch_ct_2++; + if (fsstate->fetch_ct_2 < 2) + fsstate->fetch_ct_2++; /* Must be EOF if we didn't get as many tuples as we asked for. */ - festate->eof_reached = (numrows < fetch_size); + fsstate->eof_reached = (numrows < fetch_size); PQclear(res); res = NULL; @@ -1079,6 +1726,136 @@ close_cursor(PGconn *conn, unsigned int cursor_number) PQclear(res); } +/* + * prepare_foreign_modify + * Establish a prepared statement for execution of INSERT/UPDATE/DELETE + */ +static void +prepare_foreign_modify(PgFdwModifyState *fmstate) +{ + char prep_name[NAMEDATALEN]; + char *p_name; + PGresult *res; + + /* Construct name we'll use for the prepared statement. */ + snprintf(prep_name, sizeof(prep_name), "pgsql_fdw_prep_%u", + GetPrepStmtNumber(fmstate->conn)); + p_name = pstrdup(prep_name); + + /* + * We intentionally do not specify parameter types here, but leave the + * remote server to derive them by default. This avoids possible problems + * with the remote server using different type OIDs than we do. All of + * the prepared statements we use in this module are simple enough that + * the remote server will make the right choices. + * + * We don't use a PG_TRY block here, so be careful not to throw error + * without releasing the PGresult. + */ + res = PQprepare(fmstate->conn, + p_name, + fmstate->query, + 0, + NULL); + + if (PQresultStatus(res) != PGRES_COMMAND_OK) + pgfdw_report_error(ERROR, res, true, fmstate->query); + PQclear(res); + + /* This action shows that the prepare has been done. */ + fmstate->p_name = p_name; +} + +/* + * convert_prep_stmt_params + * Create array of text strings representing parameter values + * + * tupleid is ctid to send, or NULL if none + * slot is slot to get remaining parameters from, or NULL if none + * + * Data is constructed in temp_cxt; caller should reset that after use. + */ +static const char ** +convert_prep_stmt_params(PgFdwModifyState *fmstate, + ItemPointer tupleid, + TupleTableSlot *slot) +{ + const char **p_values; + int pindex = 0; + MemoryContext oldcontext; + + oldcontext = MemoryContextSwitchTo(fmstate->temp_cxt); + + p_values = (const char **) palloc(sizeof(char *) * fmstate->p_nums); + + /* 1st parameter should be ctid, if it's in use */ + if (tupleid != NULL) + { + p_values[pindex] = OutputFunctionCall(&fmstate->p_flinfo[pindex], + PointerGetDatum(tupleid)); + pindex++; + } + + /* get following parameters from slot */ + if (slot != NULL) + { + ListCell *lc; + + foreach(lc, fmstate->target_attrs) + { + int attnum = lfirst_int(lc); + Datum value; + bool isnull; + + value = slot_getattr(slot, attnum, &isnull); + if (isnull) + p_values[pindex] = NULL; + else + p_values[pindex] = OutputFunctionCall(&fmstate->p_flinfo[pindex], + value); + pindex++; + } + } + + Assert(pindex == fmstate->p_nums); + + MemoryContextSwitchTo(oldcontext); + + return p_values; +} + +/* + * store_returning_result + * Store the result of a RETURNING clause + * + * On error, be sure to release the PGresult on the way out. Callers do not + * have PG_TRY blocks to ensure this happens. + */ +static void +store_returning_result(PgFdwModifyState *fmstate, + TupleTableSlot *slot, PGresult *res) +{ + /* PGresult must be released before leaving this function. */ + PG_TRY(); + { + HeapTuple newtup; + + newtup = make_tuple_from_result_row(res, 0, + fmstate->rel, + fmstate->attinmeta, + fmstate->temp_cxt); + /* tuple will be deleted when it is cleared from the slot */ + ExecStoreTuple(newtup, slot, InvalidBuffer, true); + } + PG_CATCH(); + { + if (res) + PQclear(res); + PG_RE_THROW(); + } + PG_END_TRY(); +} + /* * postgresAnalyzeForeignTable * Test whether analyzing this foreign table is supported @@ -1099,7 +1876,7 @@ postgresAnalyzeForeignTable(Relation relation, *func = postgresAcquireSampleRowsFunc; /* - * Now we have to get the number of pages. It's annoying that the ANALYZE + * Now we have to get the number of pages. It's annoying that the ANALYZE * API requires us to return that now, because it forces some duplication * of effort between this routine and postgresAcquireSampleRowsFunc. But * it's probably not worth redefining that API at this point. @@ -1112,7 +1889,7 @@ postgresAnalyzeForeignTable(Relation relation, table = GetForeignTable(RelationGetRelid(relation)); server = GetForeignServer(table->serverid); user = GetUserMapping(relation->rd_rel->relowner, server->serverid); - conn = GetConnection(server, user); + conn = GetConnection(server, user, false); /* * Construct command to get page count for relation. @@ -1204,7 +1981,7 @@ postgresAcquireSampleRowsFunc(Relation relation, int elevel, table = GetForeignTable(RelationGetRelid(relation)); server = GetForeignServer(table->serverid); user = GetUserMapping(relation->rd_rel->relowner, server->serverid); - conn = GetConnection(server, user); + conn = GetConnection(server, user, false); /* * Construct cursor that retrieves whole rows from remote. @@ -1382,6 +2159,7 @@ make_tuple_from_result_row(PGresult *res, Form_pg_attribute *attrs = tupdesc->attrs; Datum *values; bool *nulls; + ItemPointer ctid = NULL; ConversionLocation errpos; ErrorContextCallback errcallback; MemoryContext oldcontext; @@ -1449,6 +2227,21 @@ make_tuple_from_result_row(PGresult *res, j++; } + /* + * Convert ctid if present. XXX we could stand to have a cleaner way of + * detecting whether ctid is included in the result. + */ + if (j < PQnfields(res)) + { + char *valstr; + Datum datum; + + valstr = PQgetvalue(res, row, j); + datum = DirectFunctionCall1(tidin, CStringGetDatum(valstr)); + ctid = (ItemPointer) DatumGetPointer(datum); + j++; + } + /* Uninstall error context callback. */ error_context_stack = errcallback.previous; @@ -1463,6 +2256,9 @@ make_tuple_from_result_row(PGresult *res, tuple = heap_form_tuple(tupdesc, values, nulls); + if (ctid) + tuple->t_self = *ctid; + /* Clean up */ MemoryContextReset(temp_context); diff --git a/contrib/postgres_fdw/postgres_fdw.h b/contrib/postgres_fdw/postgres_fdw.h index 940b81a739..236a60b489 100644 --- a/contrib/postgres_fdw/postgres_fdw.h +++ b/contrib/postgres_fdw/postgres_fdw.h @@ -21,9 +21,11 @@ #include "libpq-fe.h" /* in connection.c */ -extern PGconn *GetConnection(ForeignServer *server, UserMapping *user); +extern PGconn *GetConnection(ForeignServer *server, UserMapping *user, + bool will_prep_stmt); extern void ReleaseConnection(PGconn *conn); extern unsigned int GetCursorNumber(PGconn *conn); +extern unsigned int GetPrepStmtNumber(PGconn *conn); extern void pgfdw_report_error(int elevel, PGresult *res, bool clear, const char *sql); @@ -39,14 +41,20 @@ extern void classifyConditions(PlannerInfo *root, List **param_conds, List **local_conds, List **param_numbers); -extern void deparseSimpleSql(StringInfo buf, +extern void deparseSelectSql(StringInfo buf, PlannerInfo *root, RelOptInfo *baserel, - List *local_conds); + Bitmapset *attrs_used); extern void appendWhereClause(StringInfo buf, - bool has_where, + PlannerInfo *root, List *exprs, - PlannerInfo *root); + bool is_first); +extern void deparseInsertSql(StringInfo buf, PlannerInfo *root, Index rtindex, + List *targetAttrs, List *returningList); +extern void deparseUpdateSql(StringInfo buf, PlannerInfo *root, Index rtindex, + List *targetAttrs, List *returningList); +extern void deparseDeleteSql(StringInfo buf, PlannerInfo *root, Index rtindex, + List *returningList); extern void deparseAnalyzeSizeSql(StringInfo buf, Relation rel); extern void deparseAnalyzeSql(StringInfo buf, Relation rel); diff --git a/contrib/postgres_fdw/sql/postgres_fdw.sql b/contrib/postgres_fdw/sql/postgres_fdw.sql index 0b0231bc30..007109c7c7 100644 --- a/contrib/postgres_fdw/sql/postgres_fdw.sql +++ b/contrib/postgres_fdw/sql/postgres_fdw.sql @@ -273,3 +273,77 @@ ROLLBACK TO s; FETCH c; SELECT * FROM ft1 ORDER BY c1 LIMIT 1; COMMIT; + +-- =================================================================== +-- test writable foreign table stuff +-- =================================================================== +EXPLAIN (verbose, costs off) +INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20; +INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20; +INSERT INTO ft2 (c1,c2,c3) + VALUES (1101,201,'aaa'), (1102,202,'bbb'), (1103,203,'ccc') RETURNING *; +INSERT INTO ft2 (c1,c2,c3) VALUES (1104,204,'ddd'), (1105,205,'eee'); +UPDATE ft2 SET c2 = c2 + 300, c3 = c3 || '_update3' WHERE c1 % 10 = 3; +UPDATE ft2 SET c2 = c2 + 400, c3 = c3 || '_update7' WHERE c1 % 10 = 7 RETURNING *; +EXPLAIN (verbose, costs off) +UPDATE ft2 SET c2 = ft2.c2 + 500, c3 = ft2.c3 || '_update9' + FROM ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 9; +UPDATE ft2 SET c2 = ft2.c2 + 500, c3 = ft2.c3 || '_update9' + FROM ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 9; +DELETE FROM ft2 WHERE c1 % 10 = 5 RETURNING *; +EXPLAIN (verbose, costs off) +DELETE FROM ft2 USING ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 2; +DELETE FROM ft2 USING ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 2; +SELECT c1,c2,c3,c4 FROM ft2 ORDER BY c1; + +-- Test that defaults and triggers on remote table work as expected +ALTER TABLE "S 1"."T 1" ALTER c6 SET DEFAULT '(^-^;)'; +CREATE OR REPLACE FUNCTION "S 1".F_BRTRIG() RETURNS trigger AS $$ +BEGIN + NEW.c3 = NEW.c3 || '_trig_update'; + RETURN NEW; +END; +$$ LANGUAGE plpgsql; +CREATE TRIGGER t1_br_insert BEFORE INSERT OR UPDATE + ON "S 1"."T 1" FOR EACH ROW EXECUTE PROCEDURE "S 1".F_BRTRIG(); + +INSERT INTO ft2 (c1,c2,c3) VALUES (1208, 218, 'fff') RETURNING *; +INSERT INTO ft2 (c1,c2,c3,c6) VALUES (1218, 218, 'ggg', '(--;') RETURNING *; +UPDATE ft2 SET c2 = c2 + 600 WHERE c1 % 10 = 8 RETURNING *; + +-- Test errors thrown on remote side during update +ALTER TABLE "S 1"."T 1" ADD CONSTRAINT c2positive CHECK (c2 >= 0); + +INSERT INTO ft1(c1, c2) VALUES(11, 12); -- duplicate key +INSERT INTO ft1(c1, c2) VALUES(1111, -2); -- c2positive +UPDATE ft1 SET c2 = -c2 WHERE c1 = 1; -- c2positive + +-- Test savepoint/rollback behavior +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; +begin; +update ft2 set c2 = 42 where c2 = 0; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +savepoint s1; +update ft2 set c2 = 44 where c2 = 4; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +release savepoint s1; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +savepoint s2; +update ft2 set c2 = 46 where c2 = 6; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +rollback to savepoint s2; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +release savepoint s2; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +savepoint s3; +update ft2 set c2 = -2 where c2 = 42; -- fail on remote side +rollback to savepoint s3; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +release savepoint s3; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +-- none of the above is committed yet remotely +select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; +commit; +select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; +select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml index 207de9b125..e9135bffaa 100644 --- a/doc/src/sgml/ddl.sgml +++ b/doc/src/sgml/ddl.sgml @@ -3040,36 +3040,41 @@ ANALYZE measurement; Foreign data is accessed with help from a foreign data wrapper. A foreign data wrapper is a library that can communicate with an external data source, hiding the - details of connecting to the data source and fetching data from it. There - is a foreign data wrapper available as a contrib module, - which can read plain data files residing on the server. Other kind of - foreign data wrappers might be found as third party products. If none of - the existing foreign data wrappers suit your needs, you can write your - own; see . + details of connecting to the data source and obtaining data from it. + There are some foreign data wrappers available as contrib + modules; see . Other kinds of foreign data + wrappers might be found as third party products. If none of the existing + foreign data wrappers suit your needs, you can write your own; see . To access foreign data, you need to create a foreign server - object, which defines how to connect to a particular external data source, - according to the set of options used by a particular foreign data + object, which defines how to connect to a particular external data source + according to the set of options used by its supporting foreign data wrapper. Then you need to create one or more foreign tables, which define the structure of the remote data. A foreign table can be used in queries just like a normal table, but a foreign table has no storage in the PostgreSQL server. Whenever it is used, PostgreSQL asks the foreign data wrapper - to fetch the data from the external source. + to fetch data from the external source, or transmit data to the external + source in the case of update commands. - Accessing remote data may require authentication at the external + Accessing remote data may require authenticating to the external data source. This information can be provided by a - user mapping, which can provide additional options based + user mapping, which can provide additional data + such as user names and passwords based on the current PostgreSQL role. - Currently, foreign tables are read-only. This limitation may be fixed - in a future release. + For additional information, see + , + , + , and + . diff --git a/doc/src/sgml/fdwhandler.sgml b/doc/src/sgml/fdwhandler.sgml index 638b6ab9ce..e6bce195e6 100644 --- a/doc/src/sgml/fdwhandler.sgml +++ b/doc/src/sgml/fdwhandler.sgml @@ -13,14 +13,15 @@ wrapper, which consists of a set of functions that the core server calls. The foreign data wrapper is responsible for fetching data from the remote data source and returning it to the - PostgreSQL executor. This chapter outlines how - to write a new foreign data wrapper. + PostgreSQL executor. If updating foreign + tables is to be supported, the wrapper must handle that, too. + This chapter outlines how to write a new foreign data wrapper. The foreign data wrappers included in the standard distribution are good references when trying to write your own. Look into the - contrib/file_fdw subdirectory of the source tree. + contrib subdirectory of the source tree. The reference page also has some useful details. @@ -84,9 +85,19 @@ The FDW handler function returns a palloc'd FdwRoutine - struct containing pointers to the following callback functions: + struct containing pointers to the callback functions described below. + The scan-related functions are required, the rest are optional. + + The FdwRoutine struct type is declared in + src/include/foreign/fdwapi.h, which see for additional + details. + + + + FDW Routines For Scanning Foreign Tables + void @@ -96,7 +107,7 @@ GetForeignRelSize (PlannerInfo *root, Obtain relation size estimates for a foreign table. This is called - at the beginning of planning for a query involving a foreign table. + at the beginning of planning for a query that scans a foreign table. root is the planner's global information about the query; baserel is the planner's information about this table; and foreigntableid is the pg_class OID of the @@ -181,23 +192,6 @@ GetForeignPlan (PlannerInfo *root, void -ExplainForeignScan (ForeignScanState *node, - ExplainState *es); - - - Print additional EXPLAIN output for a foreign table scan. - This can just return if there is no need to print anything. - Otherwise, it should call ExplainPropertyText and - related functions to add fields to the EXPLAIN output. - The flag fields in es can be used to determine what to - print, and the state of the ForeignScanState node - can be inspected to provide run-time statistics in the EXPLAIN - ANALYZE case. - - - - -void BeginForeignScan (ForeignScanState *node, int eflags); @@ -212,6 +206,8 @@ BeginForeignScan (ForeignScanState *node, ForeignScanState node (in particular, from the underlying ForeignScan plan node, which contains any FDW-private information provided by GetForeignPlan). + eflags contains flag bits describing the executor's + operating mode for this plan node. @@ -246,9 +242,9 @@ IterateForeignScan (ForeignScanState *node); Note that PostgreSQL's executor doesn't care - whether the rows returned violate the NOT NULL - constraints which were defined on the foreign table columns - but the - planner does care, and may optimize queries incorrectly if + whether the rows returned violate any NOT NULL + constraints that were defined on the foreign table columns — but + the planner does care, and may optimize queries incorrectly if NULL values are present in a column declared not to contain them. If a NULL value is encountered when the user has declared that none should be present, it may be appropriate to raise an @@ -277,6 +273,356 @@ EndForeignScan (ForeignScanState *node); to remote servers should be cleaned up. + + + + FDW Routines For Updating Foreign Tables + + + If an FDW supports writable foreign tables, it should provide + some or all of the following callback functions depending on + the needs and capabilities of the FDW: + + + + +void +AddForeignUpdateTargets (Query *parsetree, + RangeTblEntry *target_rte, + Relation target_relation); + + + UPDATE and DELETE operations are performed + against rows previously fetched by the table-scanning functions. The + FDW may need extra information, such as a row ID or the values of + primary-key columns, to ensure that it can identify the exact row to + update or delete. To support that, this function can add extra hidden, + or junk, target columns to the list of columns that are to be + retrieved from the foreign table during an UPDATE or + DELETE. + + + + To do that, add TargetEntry items to + parsetree->targetList, containing expressions for the + extra values to be fetched. Each such entry must be marked + resjunk = true, and must have a distinct + resname that will identify it at execution time. + Avoid using names matching ctidN or + wholerowN, as the core system can + generate junk columns of these names. + + + + This function is called in the rewriter, not the planner, so the + information available is a bit different from that available to the + planning routines. + parsetree is the parse tree for the UPDATE or + DELETE command, while target_rte and + target_relation describe the target foreign table. + + + + If the AddForeignUpdateTargets pointer is set to + NULL, no extra target expressions are added. + (This will make it impossible to implement DELETE + operations, though UPDATE may still be feasible if the FDW + relies on an unchanging primary key to identify rows.) + + + + +List * +PlanForeignModify (PlannerInfo *root, + ModifyTable *plan, + Index resultRelation, + int subplan_index); + + + Perform any additional planning actions needed for an insert, update, or + delete on a foreign table. This function generates the FDW-private + information that will be attached to the ModifyTable plan + node that performs the update action. This private information must + have the form of a List, and will be delivered to + BeginForeignModify during the execution stage. + + + + root is the planner's global information about the query. + plan is the ModifyTable plan node, which is + complete except for the fdwPrivLists field. + resultRelation identifies the target foreign table by its + rangetable index. subplan_index identifies which target of + the ModifyTable plan node this is, counting from zero; + use this if you want to index into node->plans or other + substructure of the plan node. + + + + See for additional information. + + + + If the PlanForeignModify pointer is set to + NULL, no additional plan-time actions are taken, and the + fdw_private list delivered to + BeginForeignModify will be NIL. + + + + +void +BeginForeignModify (ModifyTableState *mtstate, + ResultRelInfo *rinfo, + List *fdw_private, + int subplan_index, + int eflags); + + + Begin executing a foreign table modification operation. This routine is + called during executor startup. It should perform any initialization + needed prior to the actual table modifications. Subsequently, + ExecForeignInsert, ExecForeignUpdate or + ExecForeignDelete will be called for each tuple to be + inserted, updated, or deleted. + + + + mtstate is the overall state of the + ModifyTable plan node being executed; global data about + the plan and execution state is available via this structure. + rinfo is the ResultRelInfo struct describing + the target foreign table. (The ri_FdwState field of + ResultRelInfo is available for the FDW to store any + private state it needs for this operation.) + fdw_private contains the private data generated by + PlanForeignModify, if any. + subplan_index identifies which target of + the ModifyTable plan node this is. + eflags contains flag bits describing the executor's + operating mode for this plan node. + + + + Note that when (eflags & EXEC_FLAG_EXPLAIN_ONLY) is + true, this function should not perform any externally-visible actions; + it should only do the minimum required to make the node state valid + for ExplainForeignModify and EndForeignModify. + + + + If the BeginForeignModify pointer is set to + NULL, no action is taken during executor startup. + + + + +TupleTableSlot * +ExecForeignInsert (EState *estate, + ResultRelInfo *rinfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); + + + Insert one tuple into the foreign table. + estate is global execution state for the query. + rinfo is the ResultRelInfo struct describing + the target foreign table. + slot contains the tuple to be inserted; it will match the + rowtype definition of the foreign table. + planSlot contains the tuple that was generated by the + ModifyTable plan node's subplan; it differs from + slot in possibly containing additional junk + columns. (The planSlot is typically of little interest + for INSERT cases, but is provided for completeness.) + + + + The return value is either a slot containing the data that was actually + inserted (this might differ from the data supplied, for example as a + result of trigger actions), or NULL if no row was actually inserted + (again, typically as a result of triggers). The passed-in + slot can be re-used for this purpose. + + + + The data in the returned slot is used only if the INSERT + query has a RETURNING clause. Hence, the FDW could choose + to optimize away returning some or all columns depending on the contents + of the RETURNING clause. However, some slot must be + returned to indicate success, or the query's reported rowcount will be + wrong. + + + + If the ExecForeignInsert pointer is set to + NULL, attempts to insert into the foreign table will fail + with an error message. + + + + +TupleTableSlot * +ExecForeignUpdate (EState *estate, + ResultRelInfo *rinfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); + + + Update one tuple in the foreign table. + estate is global execution state for the query. + rinfo is the ResultRelInfo struct describing + the target foreign table. + slot contains the new data for the tuple; it will match the + rowtype definition of the foreign table. + planSlot contains the tuple that was generated by the + ModifyTable plan node's subplan; it differs from + slot in possibly containing additional junk + columns. In particular, any junk columns that were requested by + AddForeignUpdateTargets will be available from this slot. + + + + The return value is either a slot containing the row as it was actually + updated (this might differ from the data supplied, for example as a + result of trigger actions), or NULL if no row was actually updated + (again, typically as a result of triggers). The passed-in + slot can be re-used for this purpose. + + + + The data in the returned slot is used only if the UPDATE + query has a RETURNING clause. Hence, the FDW could choose + to optimize away returning some or all columns depending on the contents + of the RETURNING clause. However, some slot must be + returned to indicate success, or the query's reported rowcount will be + wrong. + + + + If the ExecForeignUpdate pointer is set to + NULL, attempts to update the foreign table will fail + with an error message. + + + + +TupleTableSlot * +ExecForeignDelete (EState *estate, + ResultRelInfo *rinfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); + + + Delete one tuple from the foreign table. + estate is global execution state for the query. + rinfo is the ResultRelInfo struct describing + the target foreign table. + slot contains nothing useful upon call, but can be used to + hold the returned tuple. + planSlot contains the tuple that was generated by the + ModifyTable plan node's subplan; in particular, it will + carry any junk columns that were requested by + AddForeignUpdateTargets. The junk column(s) must be used + to identify the tuple to be deleted. + + + + The return value is either a slot containing the row that was deleted, + or NULL if no row was deleted (typically as a result of triggers). The + passed-in slot can be used to hold the tuple to be returned. + + + + The data in the returned slot is used only if the DELETE + query has a RETURNING clause. Hence, the FDW could choose + to optimize away returning some or all columns depending on the contents + of the RETURNING clause. However, some slot must be + returned to indicate success, or the query's reported rowcount will be + wrong. + + + + If the ExecForeignDelete pointer is set to + NULL, attempts to delete from the foreign table will fail + with an error message. + + + + +void +EndForeignModify (EState *estate, + ResultRelInfo *rinfo); + + + End the table update and release resources. It is normally not important + to release palloc'd memory, but for example open files and connections + to remote servers should be cleaned up. + + + + If the EndForeignModify pointer is set to + NULL, no action is taken during executor shutdown. + + + + + + FDW Routines for <command>EXPLAIN</> + + + +void +ExplainForeignScan (ForeignScanState *node, + ExplainState *es); + + + Print additional EXPLAIN output for a foreign table scan. + This function can call ExplainPropertyText and + related functions to add fields to the EXPLAIN output. + The flag fields in es can be used to determine what to + print, and the state of the ForeignScanState node + can be inspected to provide run-time statistics in the EXPLAIN + ANALYZE case. + + + + If the ExplainForeignScan pointer is set to + NULL, no additional information is printed during + EXPLAIN. + + + + +void +ExplainForeignModify (ModifyTableState *mtstate, + ResultRelInfo *rinfo, + List *fdw_private, + int subplan_index, + struct ExplainState *es); + + + Print additional EXPLAIN output for a foreign table update. + This function can call ExplainPropertyText and + related functions to add fields to the EXPLAIN output. + The flag fields in es can be used to determine what to + print, and the state of the ModifyTableState node + can be inspected to provide run-time statistics in the EXPLAIN + ANALYZE case. The first four arguments are the same as for + BeginForeignModify. + + + + If the ExplainForeignModify pointer is set to + NULL, no additional information is printed during + EXPLAIN. + + + + + + FDW Routines for <command>ANALYZE</> + bool @@ -291,6 +637,9 @@ AnalyzeForeignTable (Relation relation, to a function that will collect sample rows from the table in func, plus the estimated size of the table in pages in totalpages. Otherwise, return false. + + + If the FDW does not support collecting statistics for any tables, the AnalyzeForeignTable pointer can be set to NULL. @@ -314,11 +663,7 @@ AcquireSampleRowsFunc (Relation relation, int elevel, if the FDW does not have any concept of dead rows.) - - The FdwRoutine struct type is declared in - src/include/foreign/fdwapi.h, which see for additional - details. - + @@ -432,9 +777,10 @@ GetForeignServerByName(const char *name, bool missing_ok); The FDW callback functions GetForeignRelSize, - GetForeignPaths, and GetForeignPlan must fit - into the workings of the PostgreSQL planner. Here are - some notes about what they must do. + GetForeignPaths, GetForeignPlan, and + PlanForeignModify must fit into the workings of the + PostgreSQL planner. Here are some notes about what + they must do. @@ -546,6 +892,33 @@ GetForeignServerByName(const char *name, bool missing_ok); same as for an ordinary restriction clause. + + When planning an UPDATE or DELETE, + PlanForeignModify can look up the RelOptInfo + struct for the foreign table and make use of the + baserel->fdw_private data previously created by the + scan-planning functions. However, in INSERT the target + table is not scanned so there is no RelOptInfo for it. + + + + For an UPDATE or DELETE against an external data + source that supports concurrent updates, it is recommended that the + ForeignScan operation lock the rows that it fetches, perhaps + via the equivalent of SELECT FOR UPDATE. The FDW may also + choose to lock rows at fetch time when the foreign table is referenced + in a SELECT FOR UPDATE/SHARE; if it does not, the + FOR UPDATE or FOR SHARE option is essentially a + no-op so far as the foreign table is concerned. This behavior may yield + semantics slightly different from operations on local tables, where row + locking is customarily delayed as long as possible: remote rows may get + locked even though they subsequently fail locally-applied restriction or + join conditions. However, matching the local semantics exactly would + require an additional remote access for every row, and might be + impossible anyway depending on what locking semantics the external data + source provides. + + diff --git a/doc/src/sgml/file-fdw.sgml b/doc/src/sgml/file-fdw.sgml index 4acb8264a4..8c527612ae 100644 --- a/doc/src/sgml/file-fdw.sgml +++ b/doc/src/sgml/file-fdw.sgml @@ -13,6 +13,7 @@ files in the server's file system. Data files must be in a format that can be read by COPY FROM; see for details. + Access to such data files is currently read-only. @@ -160,7 +161,7 @@ Create a Foreign Table for PostgreSQL CSV Logs - + One of the obvious uses for the file_fdw is to make the PostgreSQL activity log available as a table for querying. To @@ -217,8 +218,8 @@ OPTIONS ( filename '/home/josh/9.1/data/pg_log/pglog.csv', format 'csv' ); - That's it — now you can query your log directly. In production, of course, - you would need to define some way to adjust to log rotation. + That's it — now you can query your log directly. In production, of + course, you would need to define some way to deal with log rotation. diff --git a/doc/src/sgml/postgres-fdw.sgml b/doc/src/sgml/postgres-fdw.sgml index 61b77774ae..61cc2aafc2 100644 --- a/doc/src/sgml/postgres-fdw.sgml +++ b/doc/src/sgml/postgres-fdw.sgml @@ -61,7 +61,10 @@ Now you need only SELECT from a foreign table to access - the data stored in its underlying remote table. + the data stored in its underlying remote table. You can also modify + the remote table using INSERT, UPDATE, or + DELETE. (Of course, the remote user you have specified + in your user mapping must have privileges to do these things.) diff --git a/doc/src/sgml/ref/create_foreign_data_wrapper.sgml b/doc/src/sgml/ref/create_foreign_data_wrapper.sgml index d9936e8165..e2d897fb21 100644 --- a/doc/src/sgml/ref/create_foreign_data_wrapper.sgml +++ b/doc/src/sgml/ref/create_foreign_data_wrapper.sgml @@ -117,9 +117,10 @@ CREATE FOREIGN DATA WRAPPER name Notes - At the moment, the foreign-data wrapper functionality is rudimentary. - There is no support for updating a foreign table, and optimization of - queries is primitive (and mostly left to the wrapper, too). + PostgreSQL's foreign-data functionality is still under + active development. Optimization of queries is primitive (and mostly left + to the wrapper, too). Thus, there is considerable room for future + performance improvements. @@ -158,7 +159,7 @@ CREATE FOREIGN DATA WRAPPER mywrapper 9075-9 (SQL/MED), with the exception that the HANDLER and VALIDATOR clauses are extensions and the standard clauses LIBRARY and LANGUAGE - are not implemented in PostgreSQL. + are not implemented in PostgreSQL. @@ -175,6 +176,7 @@ CREATE FOREIGN DATA WRAPPER mywrapper + diff --git a/src/backend/commands/copy.c b/src/backend/commands/copy.c index 4825bca363..4eb94a43ad 100644 --- a/src/backend/commands/copy.c +++ b/src/backend/commands/copy.c @@ -2121,17 +2121,10 @@ CopyFrom(CopyState cstate) * here that basically duplicated execUtils.c ...) */ resultRelInfo = makeNode(ResultRelInfo); - resultRelInfo->ri_RangeTableIndex = 1; /* dummy */ - resultRelInfo->ri_RelationDesc = cstate->rel; - resultRelInfo->ri_TrigDesc = CopyTriggerDesc(cstate->rel->trigdesc); - if (resultRelInfo->ri_TrigDesc) - { - resultRelInfo->ri_TrigFunctions = (FmgrInfo *) - palloc0(resultRelInfo->ri_TrigDesc->numtriggers * sizeof(FmgrInfo)); - resultRelInfo->ri_TrigWhenExprs = (List **) - palloc0(resultRelInfo->ri_TrigDesc->numtriggers * sizeof(List *)); - } - resultRelInfo->ri_TrigInstrument = NULL; + InitResultRelInfo(resultRelInfo, + cstate->rel, + 1, /* dummy rangetable index */ + 0); ExecOpenIndices(resultRelInfo); diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c index 989b52da9d..9799e9ecb4 100644 --- a/src/backend/commands/explain.c +++ b/src/backend/commands/explain.c @@ -90,6 +90,7 @@ static void ExplainIndexScanDetails(Oid indexid, ScanDirection indexorderdir, static void ExplainScanTarget(Scan *plan, ExplainState *es); static void ExplainModifyTarget(ModifyTable *plan, ExplainState *es); static void ExplainTargetRel(Plan *plan, Index rti, ExplainState *es); +static void show_modifytable_info(ModifyTableState *mtstate, ExplainState *es); static void ExplainMemberNodes(List *plans, PlanState **planstates, List *ancestors, ExplainState *es); static void ExplainSubPlans(List *plans, List *ancestors, @@ -1341,6 +1342,9 @@ ExplainNode(PlanState *planstate, List *ancestors, show_instrumentation_count("Rows Removed by Filter", 1, planstate, es); break; + case T_ModifyTable: + show_modifytable_info((ModifyTableState *) planstate, es); + break; case T_Hash: show_hash_info((HashState *) planstate, es); break; @@ -1840,7 +1844,8 @@ show_foreignscan_info(ForeignScanState *fsstate, ExplainState *es) FdwRoutine *fdwroutine = fsstate->fdwroutine; /* Let the FDW emit whatever fields it wants */ - fdwroutine->ExplainForeignScan(fsstate, es); + if (fdwroutine->ExplainForeignScan != NULL) + fdwroutine->ExplainForeignScan(fsstate, es); } /* @@ -2036,6 +2041,34 @@ ExplainTargetRel(Plan *plan, Index rti, ExplainState *es) } } +/* + * Show extra information for a ModifyTable node + */ +static void +show_modifytable_info(ModifyTableState *mtstate, ExplainState *es) +{ + FdwRoutine *fdwroutine = mtstate->resultRelInfo->ri_FdwRoutine; + + /* + * If the first target relation is a foreign table, call its FDW to + * display whatever additional fields it wants to. For now, we ignore the + * possibility of other targets being foreign tables, although the API for + * ExplainForeignModify is designed to allow them to be processed. + */ + if (fdwroutine != NULL && + fdwroutine->ExplainForeignModify != NULL) + { + ModifyTable *node = (ModifyTable *) mtstate->ps.plan; + List *fdw_private = (List *) linitial(node->fdwPrivLists); + + fdwroutine->ExplainForeignModify(mtstate, + mtstate->resultRelInfo, + fdw_private, + 0, + es); + } +} + /* * Explain the constituent plans of a ModifyTable, Append, MergeAppend, * BitmapAnd, or BitmapOr node. diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c index 288b29e44a..1f2a23bcdd 100644 --- a/src/backend/executor/execMain.c +++ b/src/backend/executor/execMain.c @@ -44,6 +44,7 @@ #include "catalog/namespace.h" #include "commands/trigger.h" #include "executor/execdebug.h" +#include "foreign/fdwapi.h" #include "mb/pg_wchar.h" #include "miscadmin.h" #include "optimizer/clauses.h" @@ -1005,6 +1006,7 @@ void CheckValidResultRel(Relation resultRel, CmdType operation) { TriggerDesc *trigDesc = resultRel->trigdesc; + FdwRoutine *fdwroutine; switch (resultRel->rd_rel->relkind) { @@ -1069,10 +1071,35 @@ CheckValidResultRel(Relation resultRel, CmdType operation) RelationGetRelationName(resultRel)))); break; case RELKIND_FOREIGN_TABLE: - ereport(ERROR, - (errcode(ERRCODE_WRONG_OBJECT_TYPE), - errmsg("cannot change foreign table \"%s\"", - RelationGetRelationName(resultRel)))); + /* Okay only if the FDW supports it */ + fdwroutine = GetFdwRoutineForRelation(resultRel, false); + switch (operation) + { + case CMD_INSERT: + if (fdwroutine->ExecForeignInsert == NULL) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot insert into foreign table \"%s\"", + RelationGetRelationName(resultRel)))); + break; + case CMD_UPDATE: + if (fdwroutine->ExecForeignUpdate == NULL) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot update foreign table \"%s\"", + RelationGetRelationName(resultRel)))); + break; + case CMD_DELETE: + if (fdwroutine->ExecForeignDelete == NULL) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot delete from foreign table \"%s\"", + RelationGetRelationName(resultRel)))); + break; + default: + elog(ERROR, "unrecognized CmdType: %d", (int) operation); + break; + } break; default: ereport(ERROR, @@ -1126,7 +1153,7 @@ CheckValidRowMarkRel(Relation rel, RowMarkType markType) RelationGetRelationName(rel)))); break; case RELKIND_FOREIGN_TABLE: - /* Perhaps we can support this someday, but not today */ + /* Should not get here */ ereport(ERROR, (errcode(ERRCODE_WRONG_OBJECT_TYPE), errmsg("cannot lock rows in foreign table \"%s\"", @@ -1180,6 +1207,11 @@ InitResultRelInfo(ResultRelInfo *resultRelInfo, resultRelInfo->ri_TrigWhenExprs = NULL; resultRelInfo->ri_TrigInstrument = NULL; } + if (resultRelationDesc->rd_rel->relkind == RELKIND_FOREIGN_TABLE) + resultRelInfo->ri_FdwRoutine = GetFdwRoutineForRelation(resultRelationDesc, true); + else + resultRelInfo->ri_FdwRoutine = NULL; + resultRelInfo->ri_FdwState = NULL; resultRelInfo->ri_ConstraintExprs = NULL; resultRelInfo->ri_junkFilter = NULL; resultRelInfo->ri_projectReturning = NULL; diff --git a/src/backend/executor/nodeForeignscan.c b/src/backend/executor/nodeForeignscan.c index 63478cd12a..448fd6a912 100644 --- a/src/backend/executor/nodeForeignscan.c +++ b/src/backend/executor/nodeForeignscan.c @@ -147,7 +147,8 @@ ExecInitForeignScan(ForeignScan *node, EState *estate, int eflags) scanstate->ss.ss_currentRelation = currentRelation; /* - * get the scan type from the relation descriptor. + * get the scan type from the relation descriptor. (XXX at some point we + * might want to let the FDW editorialize on the scan tupdesc.) */ ExecAssignScanType(&scanstate->ss, RelationGetDescr(currentRelation)); diff --git a/src/backend/executor/nodeModifyTable.c b/src/backend/executor/nodeModifyTable.c index cb084d03d4..a6f247e1bc 100644 --- a/src/backend/executor/nodeModifyTable.c +++ b/src/backend/executor/nodeModifyTable.c @@ -42,6 +42,7 @@ #include "commands/trigger.h" #include "executor/executor.h" #include "executor/nodeModifyTable.h" +#include "foreign/fdwapi.h" #include "miscadmin.h" #include "nodes/nodeFuncs.h" #include "storage/bufmgr.h" @@ -225,6 +226,24 @@ ExecInsert(TupleTableSlot *slot, newId = InvalidOid; } + else if (resultRelInfo->ri_FdwRoutine) + { + /* + * insert into foreign table: let the FDW do it + */ + slot = resultRelInfo->ri_FdwRoutine->ExecForeignInsert(estate, + resultRelInfo, + slot, + planSlot); + + if (slot == NULL) /* "do nothing" */ + return NULL; + + /* FDW might have changed tuple */ + tuple = ExecMaterializeSlot(slot); + + newId = InvalidOid; + } else { /* @@ -279,7 +298,9 @@ ExecInsert(TupleTableSlot *slot, * When deleting from a table, tupleid identifies the tuple to * delete and oldtuple is NULL. When deleting from a view, * oldtuple is passed to the INSTEAD OF triggers and identifies - * what to delete, and tupleid is invalid. + * what to delete, and tupleid is invalid. When deleting from a + * foreign table, both tupleid and oldtuple are NULL; the FDW has + * to figure out which row to delete using data from the planSlot. * * Returns RETURNING result if any, otherwise NULL. * ---------------------------------------------------------------- @@ -296,6 +317,7 @@ ExecDelete(ItemPointer tupleid, Relation resultRelationDesc; HTSU_Result result; HeapUpdateFailureData hufd; + TupleTableSlot *slot = NULL; /* * get information on the (current) result relation @@ -334,6 +356,27 @@ ExecDelete(ItemPointer tupleid, if (!dodelete) /* "do nothing" */ return NULL; } + else if (resultRelInfo->ri_FdwRoutine) + { + /* + * delete from foreign table: let the FDW do it + * + * We offer the trigger tuple slot as a place to store RETURNING data, + * although the FDW can return some other slot if it wants. Set up + * the slot's tupdesc so the FDW doesn't need to do that for itself. + */ + slot = estate->es_trig_tuple_slot; + if (slot->tts_tupleDescriptor != RelationGetDescr(resultRelationDesc)) + ExecSetSlotDescriptor(slot, RelationGetDescr(resultRelationDesc)); + + slot = resultRelInfo->ri_FdwRoutine->ExecForeignDelete(estate, + resultRelInfo, + slot, + planSlot); + + if (slot == NULL) /* "do nothing" */ + return NULL; + } else { /* @@ -443,34 +486,49 @@ ldelete:; * We have to put the target tuple into a slot, which means first we * gotta fetch it. We can use the trigger tuple slot. */ - TupleTableSlot *slot = estate->es_trig_tuple_slot; TupleTableSlot *rslot; HeapTupleData deltuple; Buffer delbuffer; - if (oldtuple != NULL) + if (resultRelInfo->ri_FdwRoutine) { - deltuple.t_data = oldtuple; - deltuple.t_len = HeapTupleHeaderGetDatumLength(oldtuple); - ItemPointerSetInvalid(&(deltuple.t_self)); - deltuple.t_tableOid = InvalidOid; + /* FDW must have provided a slot containing the deleted row */ + Assert(!TupIsNull(slot)); delbuffer = InvalidBuffer; } else { - deltuple.t_self = *tupleid; - if (!heap_fetch(resultRelationDesc, SnapshotAny, - &deltuple, &delbuffer, false, NULL)) - elog(ERROR, "failed to fetch deleted tuple for DELETE RETURNING"); - } + slot = estate->es_trig_tuple_slot; + if (oldtuple != NULL) + { + deltuple.t_data = oldtuple; + deltuple.t_len = HeapTupleHeaderGetDatumLength(oldtuple); + ItemPointerSetInvalid(&(deltuple.t_self)); + deltuple.t_tableOid = InvalidOid; + delbuffer = InvalidBuffer; + } + else + { + deltuple.t_self = *tupleid; + if (!heap_fetch(resultRelationDesc, SnapshotAny, + &deltuple, &delbuffer, false, NULL)) + elog(ERROR, "failed to fetch deleted tuple for DELETE RETURNING"); + } - if (slot->tts_tupleDescriptor != RelationGetDescr(resultRelationDesc)) - ExecSetSlotDescriptor(slot, RelationGetDescr(resultRelationDesc)); - ExecStoreTuple(&deltuple, slot, InvalidBuffer, false); + if (slot->tts_tupleDescriptor != RelationGetDescr(resultRelationDesc)) + ExecSetSlotDescriptor(slot, RelationGetDescr(resultRelationDesc)); + ExecStoreTuple(&deltuple, slot, InvalidBuffer, false); + } rslot = ExecProcessReturning(resultRelInfo->ri_projectReturning, slot, planSlot); + /* + * Before releasing the target tuple again, make sure rslot has a + * local copy of any pass-by-reference values. + */ + ExecMaterializeSlot(rslot); + ExecClearTuple(slot); if (BufferIsValid(delbuffer)) ReleaseBuffer(delbuffer); @@ -494,7 +552,9 @@ ldelete:; * When updating a table, tupleid identifies the tuple to * update and oldtuple is NULL. When updating a view, oldtuple * is passed to the INSTEAD OF triggers and identifies what to - * update, and tupleid is invalid. + * update, and tupleid is invalid. When updating a foreign table, + * both tupleid and oldtuple are NULL; the FDW has to figure out + * which row to update using data from the planSlot. * * Returns RETURNING result if any, otherwise NULL. * ---------------------------------------------------------------- @@ -568,6 +628,22 @@ ExecUpdate(ItemPointer tupleid, /* trigger might have changed tuple */ tuple = ExecMaterializeSlot(slot); } + else if (resultRelInfo->ri_FdwRoutine) + { + /* + * update in foreign table: let the FDW do it + */ + slot = resultRelInfo->ri_FdwRoutine->ExecForeignUpdate(estate, + resultRelInfo, + slot, + planSlot); + + if (slot == NULL) /* "do nothing" */ + return NULL; + + /* FDW might have changed tuple */ + tuple = ExecMaterializeSlot(slot); + } else { LockTupleMode lockmode; @@ -867,10 +943,12 @@ ExecModifyTable(ModifyTableState *node) */ if (operation == CMD_UPDATE || operation == CMD_DELETE) { + char relkind; Datum datum; bool isNull; - if (resultRelInfo->ri_RelationDesc->rd_rel->relkind == RELKIND_RELATION) + relkind = resultRelInfo->ri_RelationDesc->rd_rel->relkind; + if (relkind == RELKIND_RELATION) { datum = ExecGetJunkAttribute(slot, junkfilter->jf_junkAttNo, @@ -884,6 +962,10 @@ ExecModifyTable(ModifyTableState *node) * ctid!! */ tupleid = &tuple_ctid; } + else if (relkind == RELKIND_FOREIGN_TABLE) + { + /* do nothing; FDW must fetch any junk attrs it wants */ + } else { datum = ExecGetJunkAttribute(slot, @@ -1026,6 +1108,19 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags) estate->es_result_relation_info = resultRelInfo; mtstate->mt_plans[i] = ExecInitNode(subplan, estate, eflags); + /* Also let FDWs init themselves for foreign-table result rels */ + if (resultRelInfo->ri_FdwRoutine != NULL && + resultRelInfo->ri_FdwRoutine->BeginForeignModify != NULL) + { + List *fdw_private = (List *) list_nth(node->fdwPrivLists, i); + + resultRelInfo->ri_FdwRoutine->BeginForeignModify(mtstate, + resultRelInfo, + fdw_private, + i, + eflags); + } + resultRelInfo++; i++; } @@ -1180,12 +1275,19 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags) if (operation == CMD_UPDATE || operation == CMD_DELETE) { /* For UPDATE/DELETE, find the appropriate junk attr now */ - if (resultRelInfo->ri_RelationDesc->rd_rel->relkind == RELKIND_RELATION) + char relkind; + + relkind = resultRelInfo->ri_RelationDesc->rd_rel->relkind; + if (relkind == RELKIND_RELATION) { j->jf_junkAttNo = ExecFindJunkAttribute(j, "ctid"); if (!AttributeNumberIsValid(j->jf_junkAttNo)) elog(ERROR, "could not find junk ctid column"); } + else if (relkind == RELKIND_FOREIGN_TABLE) + { + /* FDW must fetch any junk attrs it wants */ + } else { j->jf_junkAttNo = ExecFindJunkAttribute(j, "wholerow"); @@ -1243,6 +1345,19 @@ ExecEndModifyTable(ModifyTableState *node) { int i; + /* + * Allow any FDWs to shut down + */ + for (i = 0; i < node->mt_nplans; i++) + { + ResultRelInfo *resultRelInfo = node->resultRelInfo + i; + + if (resultRelInfo->ri_FdwRoutine != NULL && + resultRelInfo->ri_FdwRoutine->EndForeignModify != NULL) + resultRelInfo->ri_FdwRoutine->EndForeignModify(node->ps.state, + resultRelInfo); + } + /* * Free the exprcontext */ diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index 867b0c09d9..fd3823a36e 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -179,6 +179,7 @@ _copyModifyTable(const ModifyTable *from) COPY_SCALAR_FIELD(resultRelIndex); COPY_NODE_FIELD(plans); COPY_NODE_FIELD(returningLists); + COPY_NODE_FIELD(fdwPrivLists); COPY_NODE_FIELD(rowMarks); COPY_SCALAR_FIELD(epqParam); diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index be4e548281..d8ce5753a4 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -333,6 +333,7 @@ _outModifyTable(StringInfo str, const ModifyTable *node) WRITE_INT_FIELD(resultRelIndex); WRITE_NODE_FIELD(plans); WRITE_NODE_FIELD(returningLists); + WRITE_NODE_FIELD(fdwPrivLists); WRITE_NODE_FIELD(rowMarks); WRITE_INT_FIELD(epqParam); } diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index 8a51b56dde..d668128ccb 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -20,6 +20,7 @@ #include #include "access/skey.h" +#include "catalog/pg_class.h" #include "foreign/fdwapi.h" #include "miscadmin.h" #include "nodes/makefuncs.h" @@ -4695,7 +4696,8 @@ make_result(PlannerInfo *root, * to make it look better sometime. */ ModifyTable * -make_modifytable(CmdType operation, bool canSetTag, +make_modifytable(PlannerInfo *root, + CmdType operation, bool canSetTag, List *resultRelations, List *subplans, List *returningLists, List *rowMarks, int epqParam) @@ -4703,7 +4705,10 @@ make_modifytable(CmdType operation, bool canSetTag, ModifyTable *node = makeNode(ModifyTable); Plan *plan = &node->plan; double total_size; + List *fdw_private_list; ListCell *subnode; + ListCell *lc; + int i; Assert(list_length(resultRelations) == list_length(subplans)); Assert(returningLists == NIL || @@ -4746,6 +4751,53 @@ make_modifytable(CmdType operation, bool canSetTag, node->rowMarks = rowMarks; node->epqParam = epqParam; + /* + * For each result relation that is a foreign table, allow the FDW to + * construct private plan data, and accumulate it all into a list. + */ + fdw_private_list = NIL; + i = 0; + foreach(lc, resultRelations) + { + Index rti = lfirst_int(lc); + FdwRoutine *fdwroutine; + List *fdw_private; + + /* + * If possible, we want to get the FdwRoutine from our RelOptInfo for + * the table. But sometimes we don't have a RelOptInfo and must get + * it the hard way. (In INSERT, the target relation is not scanned, + * so it's not a baserel; and there are also corner cases for + * updatable views where the target rel isn't a baserel.) + */ + if (rti < root->simple_rel_array_size && + root->simple_rel_array[rti] != NULL) + { + RelOptInfo *resultRel = root->simple_rel_array[rti]; + + fdwroutine = resultRel->fdwroutine; + } + else + { + RangeTblEntry *rte = planner_rt_fetch(rti, root); + + Assert(rte->rtekind == RTE_RELATION); + if (rte->relkind == RELKIND_FOREIGN_TABLE) + fdwroutine = GetFdwRoutineByRelId(rte->relid); + else + fdwroutine = NULL; + } + + if (fdwroutine != NULL && + fdwroutine->PlanForeignModify != NULL) + fdw_private = fdwroutine->PlanForeignModify(root, node, rti, i); + else + fdw_private = NIL; + fdw_private_list = lappend(fdw_private_list, fdw_private); + i++; + } + node->fdwPrivLists = fdw_private_list; + return node; } diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c index db3d5c5018..0847e787c3 100644 --- a/src/backend/optimizer/plan/planner.c +++ b/src/backend/optimizer/plan/planner.c @@ -571,7 +571,8 @@ subquery_planner(PlannerGlobal *glob, Query *parse, else rowMarks = root->rowMarks; - plan = (Plan *) make_modifytable(parse->commandType, + plan = (Plan *) make_modifytable(root, + parse->commandType, parse->canSetTag, list_make1_int(parse->resultRelation), list_make1(plan), @@ -964,7 +965,8 @@ inheritance_planner(PlannerInfo *root) rowMarks = root->rowMarks; /* And last, tack on a ModifyTable node to do the UPDATE/DELETE work */ - return (Plan *) make_modifytable(parse->commandType, + return (Plan *) make_modifytable(root, + parse->commandType, parse->canSetTag, resultRelations, subplans, @@ -2035,6 +2037,15 @@ preprocess_rowmarks(PlannerInfo *root) if (rte->rtekind != RTE_RELATION) continue; + /* + * Similarly, ignore RowMarkClauses for foreign tables; foreign tables + * will instead get ROW_MARK_COPY items in the next loop. (FDWs might + * choose to do something special while fetching their rows, but that + * is of no concern here.) + */ + if (rte->relkind == RELKIND_FOREIGN_TABLE) + continue; + rels = bms_del_member(rels, rc->rti); newrc = makeNode(PlanRowMark); diff --git a/src/backend/optimizer/prep/preptlist.c b/src/backend/optimizer/prep/preptlist.c index 7b28b5584b..fb67f9e444 100644 --- a/src/backend/optimizer/prep/preptlist.c +++ b/src/backend/optimizer/prep/preptlist.c @@ -6,7 +6,8 @@ * For INSERT and UPDATE queries, the targetlist must contain an entry for * each attribute of the target relation in the correct order. For all query * types, we may need to add junk tlist entries for Vars used in the RETURNING - * list and row ID information needed for EvalPlanQual checking. + * list and row ID information needed for SELECT FOR UPDATE locking and/or + * EvalPlanQual checking. * * NOTE: the rewriter's rewriteTargetListIU and rewriteTargetListUD * routines also do preprocessing of the targetlist. The division of labor diff --git a/src/backend/parser/analyze.c b/src/backend/parser/analyze.c index d34fca5466..2a943f9c6a 100644 --- a/src/backend/parser/analyze.c +++ b/src/backend/parser/analyze.c @@ -2164,7 +2164,7 @@ transformCreateTableAsStmt(ParseState *pstate, CreateTableAsStmt *stmt) /* - * Check for features that are not supported together with FOR [KEY] UPDATE/SHARE. + * Check for features that are not supported with FOR [KEY] UPDATE/SHARE. * * exported so planner can check again after rewriting, query pullup, etc */ @@ -2239,9 +2239,6 @@ transformLockingClause(ParseState *pstate, Query *qry, LockingClause *lc, switch (rte->rtekind) { case RTE_RELATION: - /* ignore foreign tables */ - if (rte->relkind == RELKIND_FOREIGN_TABLE) - break; applyLockingClause(qry, i, lc->strength, lc->noWait, pushedDown); rte->requiredPerms |= ACL_SELECT_FOR_UPDATE; @@ -2251,7 +2248,7 @@ transformLockingClause(ParseState *pstate, Query *qry, LockingClause *lc, lc->strength, lc->noWait, pushedDown); /* - * FOR [KEY] UPDATE/SHARE of subquery is propagated to all of + * FOR UPDATE/SHARE of subquery is propagated to all of * subquery's rels, too. We could do this later (based on * the marking of the subquery RTE) but it is convenient * to have local knowledge in each query level about which @@ -2291,12 +2288,6 @@ transformLockingClause(ParseState *pstate, Query *qry, LockingClause *lc, switch (rte->rtekind) { case RTE_RELATION: - if (rte->relkind == RELKIND_FOREIGN_TABLE) - ereport(ERROR, - (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("row-level locks cannot be used with foreign table \"%s\"", - rte->eref->aliasname), - parser_errposition(pstate, thisrel->location))); applyLockingClause(qry, i, lc->strength, lc->noWait, pushedDown); diff --git a/src/backend/rewrite/rewriteHandler.c b/src/backend/rewrite/rewriteHandler.c index 83c83a6a8a..b99b9930d6 100644 --- a/src/backend/rewrite/rewriteHandler.c +++ b/src/backend/rewrite/rewriteHandler.c @@ -16,6 +16,7 @@ #include "access/sysattr.h" #include "catalog/pg_type.h" #include "commands/trigger.h" +#include "foreign/fdwapi.h" #include "nodes/makefuncs.h" #include "nodes/nodeFuncs.h" #include "parser/analyze.h" @@ -1156,6 +1157,7 @@ rewriteValuesRTE(RangeTblEntry *rte, Relation target_relation, List *attrnos) * is a regular table, the junk TLE emits the ctid attribute of the original * row. When the target relation is a view, there is no ctid, so we instead * emit a whole-row Var that will contain the "old" values of the view row. + * If it's a foreign table, we let the FDW decide what to add. * * For UPDATE queries, this is applied after rewriteTargetListIU. The * ordering isn't actually critical at the moment. @@ -1183,6 +1185,21 @@ rewriteTargetListUD(Query *parsetree, RangeTblEntry *target_rte, attrname = "ctid"; } + else if (target_relation->rd_rel->relkind == RELKIND_FOREIGN_TABLE) + { + /* + * Let the foreign table's FDW add whatever junk TLEs it wants. + */ + FdwRoutine *fdwroutine; + + fdwroutine = GetFdwRoutineForRelation(target_relation, false); + + if (fdwroutine->AddForeignUpdateTargets != NULL) + fdwroutine->AddForeignUpdateTargets(parsetree, target_rte, + target_relation); + + return; + } else { /* @@ -1444,17 +1461,13 @@ markQueryForLocking(Query *qry, Node *jtnode, if (rte->rtekind == RTE_RELATION) { - /* ignore foreign tables */ - if (rte->relkind != RELKIND_FOREIGN_TABLE) - { - applyLockingClause(qry, rti, strength, noWait, pushedDown); - rte->requiredPerms |= ACL_SELECT_FOR_UPDATE; - } + applyLockingClause(qry, rti, strength, noWait, pushedDown); + rte->requiredPerms |= ACL_SELECT_FOR_UPDATE; } else if (rte->rtekind == RTE_SUBQUERY) { applyLockingClause(qry, rti, strength, noWait, pushedDown); - /* FOR [KEY] UPDATE/SHARE of subquery is propagated to subquery's rels */ + /* FOR UPDATE/SHARE of subquery is propagated to subquery's rels */ markQueryForLocking(rte->subquery, (Node *) rte->subquery->jointree, strength, noWait, true); } diff --git a/src/include/foreign/fdwapi.h b/src/include/foreign/fdwapi.h index 562d5412df..485eee320f 100644 --- a/src/include/foreign/fdwapi.h +++ b/src/include/foreign/fdwapi.h @@ -38,9 +38,6 @@ typedef ForeignScan *(*GetForeignPlan_function) (PlannerInfo *root, List *tlist, List *scan_clauses); -typedef void (*ExplainForeignScan_function) (ForeignScanState *node, - struct ExplainState *es); - typedef void (*BeginForeignScan_function) (ForeignScanState *node, int eflags); @@ -50,6 +47,48 @@ typedef void (*ReScanForeignScan_function) (ForeignScanState *node); typedef void (*EndForeignScan_function) (ForeignScanState *node); +typedef void (*AddForeignUpdateTargets_function) (Query *parsetree, + RangeTblEntry *target_rte, + Relation target_relation); + +typedef List *(*PlanForeignModify_function) (PlannerInfo *root, + ModifyTable *plan, + Index resultRelation, + int subplan_index); + +typedef void (*BeginForeignModify_function) (ModifyTableState *mtstate, + ResultRelInfo *rinfo, + List *fdw_private, + int subplan_index, + int eflags); + +typedef TupleTableSlot *(*ExecForeignInsert_function) (EState *estate, + ResultRelInfo *rinfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); + +typedef TupleTableSlot *(*ExecForeignUpdate_function) (EState *estate, + ResultRelInfo *rinfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); + +typedef TupleTableSlot *(*ExecForeignDelete_function) (EState *estate, + ResultRelInfo *rinfo, + TupleTableSlot *slot, + TupleTableSlot *planSlot); + +typedef void (*EndForeignModify_function) (EState *estate, + ResultRelInfo *rinfo); + +typedef void (*ExplainForeignScan_function) (ForeignScanState *node, + struct ExplainState *es); + +typedef void (*ExplainForeignModify_function) (ModifyTableState *mtstate, + ResultRelInfo *rinfo, + List *fdw_private, + int subplan_index, + struct ExplainState *es); + typedef int (*AcquireSampleRowsFunc) (Relation relation, int elevel, HeapTuple *rows, int targrows, double *totalrows, @@ -73,22 +112,34 @@ typedef struct FdwRoutine { NodeTag type; - /* - * These functions are required. - */ + /* Functions for scanning foreign tables */ GetForeignRelSize_function GetForeignRelSize; GetForeignPaths_function GetForeignPaths; GetForeignPlan_function GetForeignPlan; - ExplainForeignScan_function ExplainForeignScan; BeginForeignScan_function BeginForeignScan; IterateForeignScan_function IterateForeignScan; ReScanForeignScan_function ReScanForeignScan; EndForeignScan_function EndForeignScan; /* - * These functions are optional. Set the pointer to NULL for any that are - * not provided. + * Remaining functions are optional. Set the pointer to NULL for any that + * are not provided. */ + + /* Functions for updating foreign tables */ + AddForeignUpdateTargets_function AddForeignUpdateTargets; + PlanForeignModify_function PlanForeignModify; + BeginForeignModify_function BeginForeignModify; + ExecForeignInsert_function ExecForeignInsert; + ExecForeignUpdate_function ExecForeignUpdate; + ExecForeignDelete_function ExecForeignDelete; + EndForeignModify_function EndForeignModify; + + /* Support functions for EXPLAIN */ + ExplainForeignScan_function ExplainForeignScan; + ExplainForeignModify_function ExplainForeignModify; + + /* Support functions for ANALYZE */ AnalyzeForeignTable_function AnalyzeForeignTable; } FdwRoutine; diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index 76e8cdb1ad..4f77016652 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -270,7 +270,8 @@ typedef struct ProjectionInfo * resultSlot: tuple slot used to hold cleaned tuple. * junkAttNo: not used by junkfilter code. Can be used by caller * to remember the attno of a specific junk attribute - * (execMain.c stores the "ctid" attno here). + * (nodeModifyTable.c keeps the "ctid" or "wholerow" + * attno here). * ---------------- */ typedef struct JunkFilter @@ -300,6 +301,8 @@ typedef struct JunkFilter * TrigFunctions cached lookup info for trigger functions * TrigWhenExprs array of trigger WHEN expr states * TrigInstrument optional runtime measurements for triggers + * FdwRoutine FDW callback functions, if foreign table + * FdwState available to save private state of FDW * ConstraintExprs array of constraint-checking expr states * junkFilter for removing junk attributes from tuples * projectReturning for computing a RETURNING list @@ -317,6 +320,8 @@ typedef struct ResultRelInfo FmgrInfo *ri_TrigFunctions; List **ri_TrigWhenExprs; Instrumentation *ri_TrigInstrument; + struct FdwRoutine *ri_FdwRoutine; + void *ri_FdwState; List **ri_ConstraintExprs; JunkFilter *ri_junkFilter; ProjectionInfo *ri_projectReturning; diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index 0b8b1076bb..841701ed98 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -173,6 +173,7 @@ typedef struct ModifyTable int resultRelIndex; /* index of first resultRel in plan's list */ List *plans; /* plan(s) producing source data */ List *returningLists; /* per-target-table RETURNING tlists */ + List *fdwPrivLists; /* per-target-table FDW private data lists */ List *rowMarks; /* PlanRowMarks (non-locking only) */ int epqParam; /* ID of Param for EvalPlanQual re-eval */ } ModifyTable; @@ -752,13 +753,32 @@ typedef struct Limit * RowMarkType - * enums for types of row-marking operations * - * When doing UPDATE, DELETE, or SELECT FOR [KEY] UPDATE/SHARE, we have to uniquely + * The first four of these values represent different lock strengths that + * we can take on tuples according to SELECT FOR [KEY] UPDATE/SHARE requests. + * We only support these on regular tables. For foreign tables, any locking + * that might be done for these requests must happen during the initial row + * fetch; there is no mechanism for going back to lock a row later (and thus + * no need for EvalPlanQual machinery during updates of foreign tables). + * This means that the semantics will be a bit different than for a local + * table; in particular we are likely to lock more rows than would be locked + * locally, since remote rows will be locked even if they then fail + * locally-checked restriction or join quals. However, the alternative of + * doing a separate remote query to lock each selected row is extremely + * unappealing, so let's do it like this for now. + * + * When doing UPDATE, DELETE, or SELECT FOR UPDATE/SHARE, we have to uniquely * identify all the source rows, not only those from the target relations, so * that we can perform EvalPlanQual rechecking at need. For plain tables we - * can just fetch the TID, the same as for a target relation. Otherwise (for - * example for VALUES or FUNCTION scans) we have to copy the whole row value. - * The latter is pretty inefficient but fortunately the case is not - * performance-critical in practice. + * can just fetch the TID, much as for a target relation; this case is + * represented by ROW_MARK_REFERENCE. Otherwise (for example for VALUES or + * FUNCTION scans) we have to copy the whole row value. ROW_MARK_COPY is + * pretty inefficient, since most of the time we'll never need the data; but + * fortunately the case is not performance-critical in practice. Note that + * we use ROW_MARK_COPY for non-target foreign tables, even if the FDW has a + * concept of rowid and so could theoretically support some form of + * ROW_MARK_REFERENCE. Although copying the whole row value is inefficient, + * it's probably still faster than doing a second remote fetch, so it doesn't + * seem worth the extra complexity to permit ROW_MARK_REFERENCE. */ typedef enum RowMarkType { @@ -776,10 +796,10 @@ typedef enum RowMarkType * PlanRowMark - * plan-time representation of FOR [KEY] UPDATE/SHARE clauses * - * When doing UPDATE, DELETE, or SELECT FOR [KEY] UPDATE/SHARE, we create a separate + * When doing UPDATE, DELETE, or SELECT FOR UPDATE/SHARE, we create a separate * PlanRowMark node for each non-target relation in the query. Relations that - * are not specified as FOR [KEY] UPDATE/SHARE are marked ROW_MARK_REFERENCE (if - * real tables) or ROW_MARK_COPY (if not). + * are not specified as FOR UPDATE/SHARE are marked ROW_MARK_REFERENCE (if + * regular tables) or ROW_MARK_COPY (if not). * * Initially all PlanRowMarks have rti == prti and isParent == false. * When the planner discovers that a relation is the root of an inheritance @@ -791,7 +811,7 @@ typedef enum RowMarkType * * The planner also adds resjunk output columns to the plan that carry * information sufficient to identify the locked or fetched rows. For - * tables (markType != ROW_MARK_COPY), these columns are named + * regular tables (markType != ROW_MARK_COPY), these columns are named * tableoid%u OID of table * ctid%u TID of row * The tableoid column is only present for an inheritance hierarchy. diff --git a/src/include/optimizer/planmain.h b/src/include/optimizer/planmain.h index 2f9fcd575a..16d685846e 100644 --- a/src/include/optimizer/planmain.h +++ b/src/include/optimizer/planmain.h @@ -79,7 +79,8 @@ extern SetOp *make_setop(SetOpCmd cmd, SetOpStrategy strategy, Plan *lefttree, long numGroups, double outputRows); extern Result *make_result(PlannerInfo *root, List *tlist, Node *resconstantqual, Plan *subplan); -extern ModifyTable *make_modifytable(CmdType operation, bool canSetTag, +extern ModifyTable *make_modifytable(PlannerInfo *root, + CmdType operation, bool canSetTag, List *resultRelations, List *subplans, List *returningLists, List *rowMarks, int epqParam); extern bool is_projection_capable_plan(Plan *plan);