From 2a0f262beff32ba86bcb58f3273214e5d0517c09 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 14 May 2024 21:16:24 +0200 Subject: Merging upstream version 16.3. Signed-off-by: Daniel Baumann --- src/backend/utils/adt/int8.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src/backend/utils/adt/int8.c') diff --git a/src/backend/utils/adt/int8.c b/src/backend/utils/adt/int8.c index 123b4eb..41fbeec 100644 --- a/src/backend/utils/adt/int8.c +++ b/src/backend/utils/adt/int8.c @@ -833,6 +833,21 @@ int8inc_support(PG_FUNCTION_ARGS) SupportRequestWFuncMonotonic *req = (SupportRequestWFuncMonotonic *) rawreq; MonotonicFunction monotonic = MONOTONICFUNC_NONE; int frameOptions = req->window_clause->frameOptions; + WindowFunc *wfunc = req->window_func; + + if (list_length(wfunc->args) == 1) + { + Node *expr = eval_const_expressions(NULL, linitial(wfunc->args)); + + /* + * Due to the Node representation of WindowClause runConditions in + * version prior to v17, we need to insist that the count arg is + * Const to allow safe application of the runCondition + * optimization. + */ + if (!IsA(expr, Const)) + PG_RETURN_POINTER(NULL); + } /* No ORDER BY clause then all rows are peers */ if (req->window_clause->orderClause == NIL) -- cgit v1.2.3