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-rw-r--r--src/backend/optimizer/prep/prepjointree.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/optimizer/prep/prepjointree.c b/src/backend/optimizer/prep/prepjointree.c
index ea05763..0efcc3b 100644
--- a/src/backend/optimizer/prep/prepjointree.c
+++ b/src/backend/optimizer/prep/prepjointree.c
@@ -1822,6 +1822,10 @@ pull_up_constant_function(PlannerInfo *root, Node *jtnode,
if (rtf->funccolcount != 1)
return jtnode; /* definitely composite */
+ /* If it has a coldeflist, it certainly returns RECORD */
+ if (rtf->funccolnames != NIL)
+ return jtnode; /* must be a one-column RECORD type */
+
functypclass = get_expr_result_type(rtf->funcexpr,
&funcrettype,
&tupdesc);