/*
* 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), "pg_largeobject.sql");
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)
{
PQExpBufferData connectbuf;
if (script == NULL && (script = fopen_priv(output_path, "w")) == NULL)
pg_fatal("could not open file \"%s\": %s\n", output_path, getErrorText());
initPQExpBuffer(&connectbuf);
appendPsqlMetaConnect(&connectbuf, active_db->db_name);
fputs(connectbuf.data, script);
termPQExpBuffer(&connectbuf);
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();
}
/*
* old_9_6_invalidate_hash_indexes()
* 9.6 -> 10
* Hash index binary format has changed from 9.6->10.0
*/
void
old_9_6_invalidate_hash_indexes(ClusterInfo *cluster, bool check_mode)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char *output_path = "reindex_hash.sql";
prep_status("Checking for hash indexes");
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 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 = 'hash'"
);
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_priv(output_path, "w")) == NULL)
pg_fatal("could not open file \"%s\": %s\n", output_path,
strerror(errno));
if (!db_used)
{
PQExpBufferData connectbuf;
initPQExpBuffer(&connectbuf);
appendPsqlMetaConnect(&connectbuf, active_db->db_name);
fputs(connectbuf.data, script);
termPQExpBuffer(&connectbuf);
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 && db_used)
{
/* mark hash 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 = 'hash'"));
}
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 indexes. These indexes have different\n"
"internal formats between your old and new clusters, so they must be\n"
"reindexed with the REINDEX command. After upgrading, you will be given\n"
"REINDEX instructions.\n\n");
else
pg_log(PG_WARNING, "\n"
"Your installation contains hash indexes. These indexes have different\n"
"internal formats between your old and new clusters, so they must be\n"
"reindexed with the REINDEX command. The file\n"
" %s\n"
"when executed by psql by the database superuser will recreate all invalid\n"
"indexes; until then, none of these indexes will be used.\n\n",
output_path);
}
else
check_ok();
}
