diff options
Diffstat (limited to 'src/backend/optimizer/plan/analyzejoins.c')
| -rw-r--r-- | src/backend/optimizer/plan/analyzejoins.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/analyzejoins.c b/src/backend/optimizer/plan/analyzejoins.c index e28a8dc533e..74e42451228 100644 --- a/src/backend/optimizer/plan/analyzejoins.c +++ b/src/backend/optimizer/plan/analyzejoins.c @@ -650,6 +650,11 @@ rel_is_distinct_for(PlannerInfo *root, RelOptInfo *rel, List *clause_list) bool query_supports_distinctness(Query *query) { + /* we don't cope with SRFs, see comment below */ + if (query->hasTargetSRFs) + return false; + + /* check for features we can prove distinctness with */ if (query->distinctClause != NIL || query->groupClause != NIL || query->groupingSets != NIL || @@ -695,7 +700,7 @@ query_is_distinct_for(Query *query, List *colnos, List *opids) * specified columns, since those must be evaluated before de-duplication; * but it doesn't presently seem worth the complication to check that.) */ - if (expression_returns_set((Node *) query->targetList)) + if (query->hasTargetSRFs) return false; /* |