diff options
Diffstat (limited to 'src/backend/executor/execUtils.c')
| -rw-r--r-- | src/backend/executor/execUtils.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/backend/executor/execUtils.c b/src/backend/executor/execUtils.c index c814b971472..500ff0f4f27 100644 --- a/src/backend/executor/execUtils.c +++ b/src/backend/executor/execUtils.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/execUtils.c,v 1.130 2005/12/02 20:03:40 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/executor/execUtils.c,v 1.131 2005/12/03 05:51:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -694,6 +694,28 @@ ExecAssignScanTypeFromOuterPlan(ScanState *scanstate) */ /* ---------------------------------------------------------------- + * ExecRelationIsTargetRelation + * + * Detect whether a relation (identified by rangetable index) + * is one of the target relations of the query. + * ---------------------------------------------------------------- + */ +bool +ExecRelationIsTargetRelation(EState *estate, Index scanrelid) +{ + ResultRelInfo *resultRelInfos; + int i; + + resultRelInfos = estate->es_result_relations; + for (i = 0; i < estate->es_num_result_relations; i++) + { + if (resultRelInfos[i].ri_RangeTableIndex == scanrelid) + return true; + } + return false; +} + +/* ---------------------------------------------------------------- * ExecOpenScanRelation * * Open the heap relation to be scanned by a base-level scan plan node. |