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Don't call simplify_aggref with a NULL PlannerInfo

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42473b3b3 added prosupport infrastructure to allow simplification of
Aggrefs during constant-folding.  In some cases the context->root that's
given to eval_const_expressions_mutator() can be NULL.  42473b3b3 failed
to take that into account, which could result in a crash.

To fix, add a check and only call simplify_aggref() when the PlannerInfo
is set.

Author: David Rowley <dgrowleyml@gmail.com>
Reported-by: Birler, Altan <altan.birler@tum.de>
Discussion: https://postgr.es/m/132d4da23b844d5ab9e352d34096eab5@tum.de
This commit is contained in:
David Rowley 2025-11-30 12:55:34 +13:00
parent c902bd57af
commit 5424f4da90
1 changed files with 3 additions and 1 deletions
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4
src/backend/optimizer/util/clauses.c
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@ -2638,7 +2638,9 @@ eval_const_expressions_mutator(Node *node,
}
case T_Aggref:
node = ece_generic_processing(node);
return simplify_aggref((Aggref *) node, context);
if (context->root != NULL)
return simplify_aggref((Aggref *) node, context);
return node;
case T_OpExpr:
{
OpExpr *expr = (OpExpr *) node;