diff options
Diffstat (limited to 'src/backend/optimizer/plan/subselect.c')
| -rw-r--r-- | src/backend/optimizer/plan/subselect.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c index f2b586d19c..493bc86299 100644 --- a/src/backend/optimizer/plan/subselect.c +++ b/src/backend/optimizer/plan/subselect.c @@ -281,7 +281,7 @@ SS_assign_special_param(PlannerInfo *root) } /* - * Get the datatype of the first column of the plan's output. + * Get the datatype/typmod/collation of the first column of the plan's output. * * This information is stored for ARRAY_SUBLINK execution and for * exprType()/exprTypmod()/exprCollation(), which have no way to get at the @@ -290,7 +290,8 @@ SS_assign_special_param(PlannerInfo *root) * always. */ static void -get_first_col_type(Plan *plan, Oid *coltype, int32 *coltypmod, Oid *colcollation) +get_first_col_type(Plan *plan, Oid *coltype, int32 *coltypmod, + Oid *colcollation) { /* In cases such as EXISTS, tlist might be empty; arbitrarily use VOID */ if (plan->targetlist) @@ -478,7 +479,8 @@ build_subplan(PlannerInfo *root, Plan *plan, List *rtable, List *rowmarks, splan->subLinkType = subLinkType; splan->testexpr = NULL; splan->paramIds = NIL; - get_first_col_type(plan, &splan->firstColType, &splan->firstColTypmod, &splan->firstColCollation); + get_first_col_type(plan, &splan->firstColType, &splan->firstColTypmod, + &splan->firstColCollation); splan->useHashTable = false; splan->unknownEqFalse = unknownEqFalse; splan->setParam = NIL; @@ -976,7 +978,8 @@ SS_process_ctes(PlannerInfo *root) splan->subLinkType = CTE_SUBLINK; splan->testexpr = NULL; splan->paramIds = NIL; - get_first_col_type(plan, &splan->firstColType, &splan->firstColTypmod, &splan->firstColCollation); + get_first_col_type(plan, &splan->firstColType, &splan->firstColTypmod, + &splan->firstColCollation); splan->useHashTable = false; splan->unknownEqFalse = false; splan->setParam = NIL; |