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/*
* version.c
*
* Postgres-version-specific routines
*
* Copyright (c) 2010-2012, PostgreSQL Global Development Group
* contrib/pg_upgrade/version.c
*/
#include "postgres.h"
#include "pg_upgrade.h"
/*
* new_9_0_populate_pg_largeobject_metadata()
* new >= 9.0, old <= 8.4
* 9.0 has a new pg_largeobject permission table
*/
void
new_9_0_populate_pg_largeobject_metadata(ClusterInfo *cluster, bool check_mode)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for large objects");
snprintf(output_path, sizeof(output_path), "%s/pg_largeobject.sql",
os_info.cwd);
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
int i_count;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/* find if there are any large objects */
res = executeQueryOrDie(conn,
"SELECT count(*) "
"FROM pg_catalog.pg_largeobject ");
i_count = PQfnumber(res, "count");
if (atoi(PQgetvalue(res, 0, i_count)) != 0)
{
found = true;
if (!check_mode)
{
if (script == NULL && (script = fopen(output_path, "w")) == NULL)
pg_log(PG_FATAL, "could not open file \"%s\": %s\n", output_path, getErrorText(errno));
fprintf(script, "\\connect %s\n",
quote_identifier(active_db->db_name));
fprintf(script,
"SELECT pg_catalog.lo_create(t.loid)\n"
"FROM (SELECT DISTINCT loid FROM pg_catalog.pg_largeobject) AS t;\n");
}
}
PQclear(res);
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
report_status(PG_WARNING, "warning");
if (check_mode)
pg_log(PG_WARNING, "\n"
"Your installation contains large objects. The new database has an\n"
"additional large object permission table. After upgrading, you will be\n"
"given a command to populate the pg_largeobject permission table with\n"
"default permissions.\n\n");
else
pg_log(PG_WARNING, "\n"
"Your installation contains large objects. The new database has an\n"
"additional large object permission table, so default permissions must be\n"
"defined for all large objects. The file\n"
" %s\n"
"when executed by psql by the database superuser will set the default\n"
"permissions.\n\n",
output_path);
}
else
check_ok();
}
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