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postgresql/contrib/pg_upgrade/version_old_8_3.c

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/*
* version.c
*
* Postgres-version-specific routines
*
* Copyright (c) 2010-2011, PostgreSQL Global Development Group
* contrib/pg_upgrade/version_old_8_3.c
*/
#include "pg_upgrade.h"
#include "access/transam.h"
/*
* old_8_3_check_for_name_data_type_usage()
* 8.3 -> 8.4
* Alignment for the 'name' data type changed to 'char' in 8.4;
* checks tables and indexes.
*/
void
old_8_3_check_for_name_data_type_usage(ClusterInfo *cluster)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for invalid 'name' user columns");
snprintf(output_path, sizeof(output_path), "%s/tables_using_name.txt",
os_info.cwd);
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
int ntups;
int rowno;
int i_nspname,
i_relname,
i_attname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/*
* With a smaller alignment in 8.4, 'name' cannot be used in a
* non-pg_catalog table, except as the first column. (We could tighten
* that condition with enough analysis, but it seems not worth the
* trouble.)
*/
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname, a.attname "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n, "
" pg_catalog.pg_attribute a "
"WHERE c.oid = a.attrelid AND "
" a.attnum > 1 AND "
" NOT a.attisdropped AND "
" a.atttypid = 'pg_catalog.name'::pg_catalog.regtype AND "
" c.relnamespace = n.oid AND "
" n.nspname != 'pg_catalog' AND "
" n.nspname != 'information_schema'");
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
i_attname = PQfnumber(res, "attname");
for (rowno = 0; rowno < ntups; rowno++)
{
found = true;
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "Could not create necessary file: %s\n", output_path);
if (!db_used)
{
fprintf(script, "Database: %s\n", active_db->db_name);
db_used = true;
}
fprintf(script, " %s.%s.%s\n",
PQgetvalue(res, rowno, i_nspname),
PQgetvalue(res, rowno, i_relname),
PQgetvalue(res, rowno, i_attname));
}
PQclear(res);
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
pg_log(PG_REPORT, "fatal\n");
pg_log(PG_FATAL,
"| Your installation contains the \"name\" data type in\n"
"| user tables. This data type changed its internal\n"
"| alignment between your old and new clusters so this\n"
"| cluster cannot currently be upgraded. You can\n"
"| remove the problem tables and restart the upgrade.\n"
"| A list of the problem columns is in the file:\n"
"| \t%s\n\n", output_path);
}
else
check_ok();
}
/*
* old_8_3_check_for_tsquery_usage()
* 8.3 -> 8.4
* A new 'prefix' field was added to the 'tsquery' data type in 8.4
* so upgrading of such fields is impossible.
*/
void
old_8_3_check_for_tsquery_usage(ClusterInfo *cluster)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for tsquery user columns");
snprintf(output_path, sizeof(output_path), "%s/tables_using_tsquery.txt",
os_info.cwd);
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
int ntups;
int rowno;
int i_nspname,
i_relname,
i_attname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/* Find any user-defined tsquery columns */
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname, a.attname "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n, "
" pg_catalog.pg_attribute a "
"WHERE c.relkind = 'r' AND "
" c.oid = a.attrelid AND "
" NOT a.attisdropped AND "
" a.atttypid = 'pg_catalog.tsquery'::pg_catalog.regtype AND "
" c.relnamespace = n.oid AND "
" n.nspname != 'pg_catalog' AND "
" n.nspname != 'information_schema'");
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
i_attname = PQfnumber(res, "attname");
for (rowno = 0; rowno < ntups; rowno++)
{
found = true;
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "Could not create necessary file: %s\n", output_path);
if (!db_used)
{
fprintf(script, "Database: %s\n", active_db->db_name);
db_used = true;
}
fprintf(script, " %s.%s.%s\n",
PQgetvalue(res, rowno, i_nspname),
PQgetvalue(res, rowno, i_relname),
PQgetvalue(res, rowno, i_attname));
}
PQclear(res);
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
pg_log(PG_REPORT, "fatal\n");
pg_log(PG_FATAL,
"| Your installation contains the \"tsquery\" data type.\n"
"| This data type added a new internal field between\n"
"| your old and new clusters so this cluster cannot\n"
"| currently be upgraded. You can remove the problem\n"
"| columns and restart the upgrade. A list of the\n"
"| problem columns is in the file:\n"
"| \t%s\n\n", output_path);
}
else
check_ok();
}
/*
* old_8_3_rebuild_tsvector_tables()
* 8.3 -> 8.4
* 8.3 sorts lexemes by its length and if lengths are the same then it uses
* alphabetic order; 8.4 sorts lexemes in lexicographical order, e.g.
*
* => SELECT 'c bb aaa'::tsvector;
* tsvector
* ----------------
* 'aaa' 'bb' 'c' -- 8.4
* 'c' 'bb' 'aaa' -- 8.3
*/
void
old_8_3_rebuild_tsvector_tables(ClusterInfo *cluster, bool check_mode)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for tsvector user columns");
snprintf(output_path, sizeof(output_path), "%s/rebuild_tsvector_tables.sql",
os_info.cwd);
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
char nspname[NAMEDATALEN] = "",
relname[NAMEDATALEN] = "";
int ntups;
int rowno;
int i_nspname,
i_relname,
i_attname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/* Find any user-defined tsvector columns */
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname, a.attname "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n, "
" pg_catalog.pg_attribute a "
"WHERE c.relkind = 'r' AND "
" c.oid = a.attrelid AND "
" NOT a.attisdropped AND "
" a.atttypid = 'pg_catalog.tsvector'::pg_catalog.regtype AND "
" c.relnamespace = n.oid AND "
" n.nspname != 'pg_catalog' AND "
" n.nspname != 'information_schema'");
/*
* This macro is used below to avoid reindexing indexes already rebuilt
* because of tsvector columns.
*/
#define SKIP_TSVECTOR_TABLES \
"i.indrelid NOT IN ( " \
"SELECT DISTINCT c.oid " \
"FROM pg_catalog.pg_class c, " \
" pg_catalog.pg_namespace n, " \
" pg_catalog.pg_attribute a " \
"WHERE c.relkind = 'r' AND " \
" c.oid = a.attrelid AND " \
" NOT a.attisdropped AND " \
" a.atttypid = 'pg_catalog.tsvector'::pg_catalog.regtype AND " \
" c.relnamespace = n.oid AND " \
" n.nspname != 'pg_catalog' AND " \
" n.nspname != 'information_schema') "
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
i_attname = PQfnumber(res, "attname");
for (rowno = 0; rowno < ntups; rowno++)
{
found = true;
if (!check_mode)
{
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "Could not create necessary file: %s\n", output_path);
if (!db_used)
{
fprintf(script, "\\connect %s\n\n",
quote_identifier(active_db->db_name));
db_used = true;
}
/* Rebuild all tsvector collumns with one ALTER TABLE command */
if (strcmp(PQgetvalue(res, rowno, i_nspname), nspname) != 0 ||
strcmp(PQgetvalue(res, rowno, i_relname), relname) != 0)
{
if (strlen(nspname) != 0 || strlen(relname) != 0)
fprintf(script, ";\n\n");
fprintf(script, "ALTER TABLE %s.%s\n",
quote_identifier(PQgetvalue(res, rowno, i_nspname)),
quote_identifier(PQgetvalue(res, rowno, i_relname)));
}
else
fprintf(script, ",\n");
strlcpy(nspname, PQgetvalue(res, rowno, i_nspname), sizeof(nspname));
strlcpy(relname, PQgetvalue(res, rowno, i_relname), sizeof(relname));
fprintf(script, "ALTER COLUMN %s "
/* This could have been a custom conversion function call. */
"TYPE pg_catalog.tsvector USING %s::pg_catalog.text::pg_catalog.tsvector",
quote_identifier(PQgetvalue(res, rowno, i_attname)),
quote_identifier(PQgetvalue(res, rowno, i_attname)));
}
}
if (strlen(nspname) != 0 || strlen(relname) != 0)
fprintf(script, ";\n\n");
PQclear(res);
/* XXX Mark tables as not accessable somehow */
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
report_status(PG_WARNING, "warning");
if (check_mode)
pg_log(PG_WARNING, "\n"
"| Your installation contains tsvector columns.\n"
"| The tsvector internal storage format changed\n"
"| between your old and new clusters so the tables\n"
"| must be rebuilt. After upgrading, you will be\n"
"| given instructions.\n\n");
else
pg_log(PG_WARNING, "\n"
"| Your installation contains tsvector columns.\n"
"| The tsvector internal storage format changed\n"
"| between your old and new clusters so the tables\n"
"| must be rebuilt. The file:\n"
"| \t%s\n"
"| when executed by psql by the database super-user\n"
"| will rebuild all tables with tsvector columns.\n\n",
output_path);
}
else
check_ok();
}
/*
* old_8_3_invalidate_hash_gin_indexes()
* 8.3 -> 8.4
* Hash, Gin, and GiST index binary format has changes from 8.3->8.4
*/
void
old_8_3_invalidate_hash_gin_indexes(ClusterInfo *cluster, bool check_mode)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for hash and gin indexes");
snprintf(output_path, sizeof(output_path), "%s/reindex_hash_and_gin.sql",
os_info.cwd);
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
int ntups;
int rowno;
int i_nspname,
i_relname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/* find hash and gin indexes */
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_index i, "
" pg_catalog.pg_am a, "
" pg_catalog.pg_namespace n "
"WHERE i.indexrelid = c.oid AND "
" c.relam = a.oid AND "
" c.relnamespace = n.oid AND "
" a.amname IN ('hash', 'gin') AND "
SKIP_TSVECTOR_TABLES);
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
for (rowno = 0; rowno < ntups; rowno++)
{
found = true;
if (!check_mode)
{
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "Could not create necessary file: %s\n", output_path);
if (!db_used)
{
fprintf(script, "\\connect %s\n",
quote_identifier(active_db->db_name));
db_used = true;
}
fprintf(script, "REINDEX INDEX %s.%s;\n",
quote_identifier(PQgetvalue(res, rowno, i_nspname)),
quote_identifier(PQgetvalue(res, rowno, i_relname)));
}
}
PQclear(res);
if (!check_mode && found)
/* mark hash and gin indexes as invalid */
PQclear(executeQueryOrDie(conn,
"UPDATE pg_catalog.pg_index i "
"SET indisvalid = false "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_am a, "
" pg_catalog.pg_namespace n "
"WHERE i.indexrelid = c.oid AND "
" c.relam = a.oid AND "
" c.relnamespace = n.oid AND "
" a.amname IN ('hash', 'gin')"));
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
report_status(PG_WARNING, "warning");
if (check_mode)
pg_log(PG_WARNING, "\n"
"| Your installation contains hash and/or gin\n"
"| indexes. These indexes have different\n"
"| internal formats between your old and new\n"
"| clusters so they must be reindexed with the\n"
"| REINDEX command. After upgrading, you will\n"
"| be given REINDEX instructions.\n\n");
else
pg_log(PG_WARNING, "\n"
"| Your installation contains hash and/or gin\n"
"| indexes. These indexes have different internal\n"
"| formats between your old and new clusters so\n"
"| they must be reindexed with the REINDEX command.\n"
"| The file:\n"
"| \t%s\n"
"| when executed by psql by the database super-user\n"
"| will recreate all invalid indexes; until then,\n"
"| none of these indexes will be used.\n\n",
output_path);
}
else
check_ok();
}
/*
* old_8_3_invalidate_bpchar_pattern_ops_indexes()
* 8.3 -> 8.4
* 8.4 bpchar_pattern_ops no longer sorts based on trailing spaces
*/
void
old_8_3_invalidate_bpchar_pattern_ops_indexes(ClusterInfo *cluster,
bool check_mode)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for bpchar_pattern_ops indexes");
snprintf(output_path, sizeof(output_path), "%s/reindex_bpchar_ops.sql",
os_info.cwd);
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
int ntups;
int rowno;
int i_nspname,
i_relname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/* find bpchar_pattern_ops indexes */
/*
* Do only non-hash, non-gin indexees; we already invalidated them
* above; no need to reindex twice
*/
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname "
"FROM pg_catalog.pg_index i, "
" pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n "
"WHERE indexrelid = c.oid AND "
" c.relnamespace = n.oid AND "
" ( "
" SELECT o.oid "
" FROM pg_catalog.pg_opclass o, "
" pg_catalog.pg_am a"
" WHERE a.amname NOT IN ('hash', 'gin') AND "
" a.oid = o.opcmethod AND "
" o.opcname = 'bpchar_pattern_ops') "
" = ANY (i.indclass) AND "
SKIP_TSVECTOR_TABLES);
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
for (rowno = 0; rowno < ntups; rowno++)
{
found = true;
if (!check_mode)
{
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "Could not create necessary file: %s\n", output_path);
if (!db_used)
{
fprintf(script, "\\connect %s\n",
quote_identifier(active_db->db_name));
db_used = true;
}
fprintf(script, "REINDEX INDEX %s.%s;\n",
quote_identifier(PQgetvalue(res, rowno, i_nspname)),
quote_identifier(PQgetvalue(res, rowno, i_relname)));
}
}
PQclear(res);
if (!check_mode && found)
/* mark bpchar_pattern_ops indexes as invalid */
PQclear(executeQueryOrDie(conn,
"UPDATE pg_catalog.pg_index i "
"SET indisvalid = false "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n "
"WHERE indexrelid = c.oid AND "
" c.relnamespace = n.oid AND "
" ( "
" SELECT o.oid "
" FROM pg_catalog.pg_opclass o, "
" pg_catalog.pg_am a"
" WHERE a.amname NOT IN ('hash', 'gin') AND "
" a.oid = o.opcmethod AND "
" o.opcname = 'bpchar_pattern_ops') "
" = ANY (i.indclass)"));
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
report_status(PG_WARNING, "warning");
if (check_mode)
pg_log(PG_WARNING, "\n"
"| Your installation contains indexes using\n"
"| \"bpchar_pattern_ops\". These indexes have\n"
"| different internal formats between your old and\n"
"| new clusters so they must be reindexed with the\n"
"| REINDEX command. After upgrading, you will be\n"
"| given REINDEX instructions.\n\n");
else
pg_log(PG_WARNING, "\n"
"| Your installation contains indexes using\n"
"| \"bpchar_pattern_ops\". These indexes have\n"
"| different internal formats between your old and\n"
"| new clusters so they must be reindexed with the\n"
"| REINDEX command. The file:\n"
"| \t%s\n"
"| when executed by psql by the database super-user\n"
"| will recreate all invalid indexes; until then,\n"
"| none of these indexes will be used.\n\n",
output_path);
}
else
check_ok();
}
/*
* old_8_3_create_sequence_script()
* 8.3 -> 8.4
* 8.4 added the column "start_value" to all sequences. For this reason,
* we don't transfer sequence files but instead use the CREATE SEQUENCE
* command from the schema dump, and use setval() to restore the sequence
* value and 'is_called' from the old database. This is safe to run
* by pg_upgrade because sequence files are not transfered from the old
* server, even in link mode.
*/
char *
old_8_3_create_sequence_script(ClusterInfo *cluster)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char *output_path = pg_malloc(MAXPGPATH);
snprintf(output_path, MAXPGPATH, "%s/adjust_sequences.sql", os_info.cwd);
prep_status("Creating script to adjust sequences");
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
int ntups;
int rowno;
int i_nspname,
i_relname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/* Find any sequences */
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n "
"WHERE c.relkind = 'S' AND "
" c.relnamespace = n.oid AND "
" n.nspname != 'pg_catalog' AND "
" n.nspname != 'information_schema'");
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
for (rowno = 0; rowno < ntups; rowno++)
{
PGresult *seq_res;
int i_last_value,
i_is_called;
const char *nspname = PQgetvalue(res, rowno, i_nspname);
const char *relname = PQgetvalue(res, rowno, i_relname);
found = true;
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "Could not create necessary file: %s\n", output_path);
if (!db_used)
{
fprintf(script, "\\connect %s\n\n",
quote_identifier(active_db->db_name));
db_used = true;
}
/* Find the desired sequence */
seq_res = executeQueryOrDie(conn,
"SELECT s.last_value, s.is_called "
"FROM %s.%s s",
quote_identifier(nspname),
quote_identifier(relname));
assert(PQntuples(seq_res) == 1);
i_last_value = PQfnumber(seq_res, "last_value");
i_is_called = PQfnumber(seq_res, "is_called");
fprintf(script, "SELECT setval('%s.%s', %s, '%s');\n",
quote_identifier(nspname), quote_identifier(relname),
PQgetvalue(seq_res, 0, i_last_value), PQgetvalue(seq_res, 0, i_is_called));
PQclear(seq_res);
}
if (db_used)
fprintf(script, "\n");
PQclear(res);
PQfinish(conn);
}
if (script)
fclose(script);
check_ok();
if (found)
return output_path;
else
{
pg_free(output_path);
return NULL;
}
}
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