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Have pg_upgrade properly preserve relfrozenxid in toast tables. 

This fixes a pg_upgrade bug that could lead to query errors when clog
files are improperly removed.
This commit is contained in:
Bruce Momjian 2011-04-08 11:46:34 -04:00
parent dca30da343
commit 9c38bce29c
2 changed files with 52 additions and 10 deletions
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60
src/bin/pg_dump/pg_dump.c
View File

@ -3812,6 +3812,8 @@ getTables(int *numTables)
int i_relhasrules;
int i_relhasoids;
int i_relfrozenxid;
int i_toastoid;
int i_toastfrozenxid;
int i_relpersistence;
int i_owning_tab;
int i_owning_col;
@ -3855,7 +3857,9 @@ getTables(int *numTables)
"(%s c.relowner) AS rolname, "
"c.relchecks, c.relhastriggers, "
"c.relhasindex, c.relhasrules, c.relhasoids, "
"c.relfrozenxid, c.relpersistence, "
"c.relfrozenxid, tc.oid AS toid, "
"tc.relfrozenxid AS tfrozenxid, "
"c.relpersistence, "
"CASE WHEN c.reloftype <> 0 THEN c.reloftype::pg_catalog.regtype ELSE NULL END AS reloftype, "
"d.refobjid AS owning_tab, "
"d.refobjsubid AS owning_col, "
@ -3889,7 +3893,9 @@ getTables(int *numTables)
"(%s c.relowner) AS rolname, "
"c.relchecks, c.relhastriggers, "
"c.relhasindex, c.relhasrules, c.relhasoids, "
"c.relfrozenxid, 'p' AS relpersistence, "
"c.relfrozenxid, tc.oid AS toid, "
"tc.relfrozenxid AS tfrozenxid, "
"'p' AS relpersistence, "
"CASE WHEN c.reloftype <> 0 THEN c.reloftype::pg_catalog.regtype ELSE NULL END AS reloftype, "
"d.refobjid AS owning_tab, "
"d.refobjsubid AS owning_col, "
@ -3922,7 +3928,9 @@ getTables(int *numTables)
"(%s c.relowner) AS rolname, "
"c.relchecks, c.relhastriggers, "
"c.relhasindex, c.relhasrules, c.relhasoids, "
"c.relfrozenxid, 'p' AS relpersistence, "
"c.relfrozenxid, tc.oid AS toid, "
"tc.relfrozenxid AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"d.refobjid AS owning_tab, "
"d.refobjsubid AS owning_col, "
@ -3955,7 +3963,10 @@ getTables(int *numTables)
"(%s relowner) AS rolname, "
"relchecks, (reltriggers <> 0) AS relhastriggers, "
"relhasindex, relhasrules, relhasoids, "
"relfrozenxid, 'p' AS relpersistence, "
"relfrozenxid, "
"0 AS toid, "
"0 AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"d.refobjid AS owning_tab, "
"d.refobjsubid AS owning_col, "
@ -3987,7 +3998,10 @@ getTables(int *numTables)
"(%s relowner) AS rolname, "
"relchecks, (reltriggers <> 0) AS relhastriggers, "
"relhasindex, relhasrules, relhasoids, "
"0 AS relfrozenxid, 'p' AS relpersistence, "
"0 AS relfrozenxid, "
"0 AS toid, "
"0 AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"d.refobjid AS owning_tab, "
"d.refobjsubid AS owning_col, "
@ -4019,7 +4033,10 @@ getTables(int *numTables)
"(%s relowner) AS rolname, "
"relchecks, (reltriggers <> 0) AS relhastriggers, "
"relhasindex, relhasrules, relhasoids, "
"0 AS relfrozenxid, 'p' AS relpersistence, "
"0 AS relfrozenxid, "
"0 AS toid, "
"0 AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"d.refobjid AS owning_tab, "
"d.refobjsubid AS owning_col, "
@ -4047,7 +4064,10 @@ getTables(int *numTables)
"(%s relowner) AS rolname, "
"relchecks, (reltriggers <> 0) AS relhastriggers, "
"relhasindex, relhasrules, relhasoids, "
"0 AS relfrozenxid, 'p' AS relpersistence, "
"0 AS relfrozenxid, "
"0 AS toid, "
"0 AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"NULL::oid AS owning_tab, "
"NULL::int4 AS owning_col, "
@ -4070,7 +4090,10 @@ getTables(int *numTables)
"relchecks, (reltriggers <> 0) AS relhastriggers, "
"relhasindex, relhasrules, "
"'t'::bool AS relhasoids, "
"0 AS relfrozenxid, 'p' AS relpersistence, "
"0 AS relfrozenxid, "
"0 AS toid, "
"0 AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"NULL::oid AS owning_tab, "
"NULL::int4 AS owning_col, "
@ -4103,7 +4126,10 @@ getTables(int *numTables)
"relchecks, (reltriggers <> 0) AS relhastriggers, "
"relhasindex, relhasrules, "
"'t'::bool AS relhasoids, "
"0 as relfrozenxid, 'p' AS relpersistence, "
"0 as relfrozenxid, "
"0 AS toid, "
"0 AS tfrozenxid, "
"'p' AS relpersistence, "
"NULL AS reloftype, "
"NULL::oid AS owning_tab, "
"NULL::int4 AS owning_col, "
@ -4149,6 +4175,8 @@ getTables(int *numTables)
i_relhasrules = PQfnumber(res, "relhasrules");
i_relhasoids = PQfnumber(res, "relhasoids");
i_relfrozenxid = PQfnumber(res, "relfrozenxid");
i_toastoid = PQfnumber(res, "toid");
i_toastfrozenxid = PQfnumber(res, "tfrozenxid");
i_relpersistence = PQfnumber(res, "relpersistence");
i_owning_tab = PQfnumber(res, "owning_tab");
i_owning_col = PQfnumber(res, "owning_col");
@ -4190,6 +4218,8 @@ getTables(int *numTables)
tblinfo[i].hastriggers = (strcmp(PQgetvalue(res, i, i_relhastriggers), "t") == 0);
tblinfo[i].hasoids = (strcmp(PQgetvalue(res, i, i_relhasoids), "t") == 0);
tblinfo[i].frozenxid = atooid(PQgetvalue(res, i, i_relfrozenxid));
tblinfo[i].toast_oid = atooid(PQgetvalue(res, i, i_toastoid));
tblinfo[i].toast_frozenxid = atooid(PQgetvalue(res, i, i_toastfrozenxid));
if (PQgetisnull(res, i, i_reloftype))
tblinfo[i].reloftype = NULL;
else
@ -12221,13 +12251,23 @@ dumpTableSchema(Archive *fout, TableInfo *tbinfo)
}
}
appendPQExpBuffer(q, "\n-- For binary upgrade, set relfrozenxid\n");
appendPQExpBuffer(q, "\n-- For binary upgrade, set heap's relfrozenxid\n");
appendPQExpBuffer(q, "UPDATE pg_catalog.pg_class\n"
"SET relfrozenxid = '%u'\n"
"WHERE oid = ",
tbinfo->frozenxid);
appendStringLiteralAH(q, fmtId(tbinfo->dobj.name), fout);
appendPQExpBuffer(q, "::pg_catalog.regclass;\n");
if (tbinfo->toast_oid)
{
/* We preserve the toast oids, so we can use it during restore */
appendPQExpBuffer(q, "\n-- For binary upgrade, set toast's relfrozenxid\n");
appendPQExpBuffer(q, "UPDATE pg_catalog.pg_class\n"
"SET relfrozenxid = '%u'\n"
"WHERE oid = '%u';\n",
tbinfo->toast_frozenxid, tbinfo->toast_oid);
}
}
/* Loop dumping statistics and storage statements */

2
src/bin/pg_dump/pg_dump.h
View File

@ -248,6 +248,8 @@ typedef struct _tableInfo
bool hastriggers; /* does it have any triggers? */
bool hasoids; /* does it have OIDs? */
uint32 frozenxid; /* for restore frozen xid */
Oid toast_oid; /* for restore toast frozen xid */
uint32 toast_frozenxid;/* for restore toast frozen xid */
int ncheck; /* # of CHECK expressions */
char *reloftype; /* underlying type for typed table */
/* these two are set only if table is a sequence owned by a column: */