pgsql: Don't call simplify_aggref with a NULL PlannerInfo - Mailing list pgsql-committers

From David Rowley
Subject pgsql: Don't call simplify_aggref with a NULL PlannerInfo
Date
Msg-id E1vPUnB-0022e0-01@gemulon.postgresql.org
Whole thread Raw
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Don't call simplify_aggref with a NULL PlannerInfo

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

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/5424f4da9031ac4681ab002d20f021232070c96a

Modified Files
--------------
src/backend/optimizer/util/clauses.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)


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