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 ------ master Details ------- https://git.postgresql.org/pg/commitdiff/5c0a20003b4396930a354105ccf47402ca5047d2 Modified Files -------------- src/backend/executor/nodeAgg.c | 2 +- src/include/lib/simplehash.h | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-)
