Fix reset of incorrect hash iterator in GROUPING SETS queries This fixes an unlikely issue when fetching GROUPING SET results from their internally stored hash tables. It was possible in rare cases that the hash iterator would be set up incorrectly which could result in a crash.
This was introduced in 4d143509c, so backpatch to v18. Many thanks to Yuri Zamyatin for reporting and helping to debug this issue. Bug: #19078 Reported-by: Yuri Zamyatin <[email protected]> Author: David Rowley <[email protected]> Reviewed-by: Jeff Davis <[email protected]> Discussion: https://postgr.es/m/[email protected] Backpatch-through: 18 Branch ------ REL_18_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/0b6a02f0355c8950ffe22b52eac86f6261e19caf Modified Files -------------- src/backend/executor/nodeAgg.c | 2 +- src/include/lib/simplehash.h | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-)
