Fix not-backwards-compatible pg_upgrade test for prepared transactions.

There's no reason for this test to use the undocumented pg_prepared_xact()
function, when it can use the stable API pg_prepared_xacts instead.
Fixes breakage against 8.3, as reported by Justin Arnold.

diff --git a/contrib/pg_upgrade/check.c b/contrib/pg_upgrade/check.c
index ada93fb58050cda047ae8465f64c2bd390f45451..aae408e408eae6199e3427e0b3b44eebde97363a 100644 (file)
--- a/contrib/pg_upgrade/check.c
+++ b/contrib/pg_upgrade/check.c
@@ -531,7 +531,7 @@ check_for_prepared_transactions(ClusterInfo *cluster)
 
        res = executeQueryOrDie(conn,
                                                        "SELECT * "
-                                                       "FROM pg_catalog.pg_prepared_xact()");
+                                                       "FROM pg_catalog.pg_prepared_xacts");
 
        if (PQntuples(res) != 0)
                pg_log(PG_FATAL, "The %s cluster contains prepared transactions\n",