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Diffstat (limited to 'src/backend/optimizer/util/plancat.c')
-rw-r--r--src/backend/optimizer/util/plancat.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c
index fee6b8d7c14..8956502015f 100644
--- a/src/backend/optimizer/util/plancat.c
+++ b/src/backend/optimizer/util/plancat.c
@@ -663,7 +663,13 @@ get_relation_constraints(PlannerInfo *root,
att->attcollation,
0);
ntest->nulltesttype = IS_NOT_NULL;
- ntest->argisrow = type_is_rowtype(att->atttypid);
+
+ /*
+ * argisrow=false is correct even for a composite column,
+ * because attnotnull does not represent a SQL-spec IS NOT
+ * NULL test in such a case, just IS DISTINCT FROM NULL.
+ */
+ ntest->argisrow = false;
result = lappend(result, ntest);
}
}