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Diffstat (limited to 'src/backend/optimizer/plan/subselect.c')
| -rw-r--r-- | src/backend/optimizer/plan/subselect.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c index cf503d51135..30386a38091 100644 --- a/src/backend/optimizer/plan/subselect.c +++ b/src/backend/optimizer/plan/subselect.c @@ -995,6 +995,11 @@ SS_process_ctes(PlannerInfo *root) * (Notionally, we replace the SubLink with a constant TRUE, then elide the * redundant constant from the qual.) * + * On success, the caller is also responsible for recursively applying + * pull_up_sublinks processing to the rarg and quals of the returned JoinExpr. + * (On failure, there is no need to do anything, since pull_up_sublinks will + * be applied when we recursively plan the sub-select.) + * * Side effects of a successful conversion include adding the SubLink's * subselect to the query's rangetable, so that it can be referenced in * the JoinExpr's rarg. |