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-rw-r--r--src/backend/utils/adt/timestamp.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c
index 9b4c012a63c..997a551bd87 100644
--- a/src/backend/utils/adt/timestamp.c
+++ b/src/backend/utils/adt/timestamp.c
@@ -1309,11 +1309,10 @@ intervaltypmodleastfield(int32 typmod)
Datum
interval_transform(PG_FUNCTION_ARGS)
{
- FuncExpr *expr = (FuncExpr *) PG_GETARG_POINTER(0);
+ FuncExpr *expr = castNode(FuncExpr, PG_GETARG_POINTER(0));
Node *ret = NULL;
Node *typmod;
- Assert(IsA(expr, FuncExpr));
Assert(list_length(expr->args) >= 2);
typmod = (Node *) lsecond(expr->args);