diff options
Diffstat (limited to 'src/backend/optimizer/prep/preptlist.c')
| -rw-r--r-- | src/backend/optimizer/prep/preptlist.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/backend/optimizer/prep/preptlist.c b/src/backend/optimizer/prep/preptlist.c index e3b9803d0ab..822c0c79f05 100644 --- a/src/backend/optimizer/prep/preptlist.c +++ b/src/backend/optimizer/prep/preptlist.c @@ -15,7 +15,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.38 2000/08/08 15:41:48 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.39 2000/10/05 19:11:30 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -49,6 +49,17 @@ preprocess_targetlist(List *tlist, Index result_relation, List *range_table) { + /* + * Sanity check: if there is a result relation, it'd better be a + * real relation not a subquery. Else parser or rewriter messed up. + */ + if (result_relation) + { + RangeTblEntry *rte = rt_fetch(result_relation, range_table); + + if (rte->subquery != NULL || rte->relid == InvalidOid) + elog(ERROR, "preprocess_targetlist: subquery cannot be result relation"); + } /* * for heap_formtuple to work, the targetlist must match the exact |