Fix memory leak when deallocating prepared statement in postgres_fdw
The leak is minor, so no backpatch is done.  Oversight in
Reported-by: Tom Lane
@@ -4063,6 +4063,7 @@ deallocate_query(PgFdwModifyState *fmstate)
if (PQresultStatus(res) != PGRES_COMMAND_OK)
pgfdw_report_error(ERROR, res, fmstate->conn, true, sql);
PQclear(res);
+ pfree(fmstate->p_name);
fmstate->p_name = NULL;
}
