Use correct connection for cancellation in frontend's parallel slots While waiting for slots to become available in wait_on_slots() in parallel_slot.c, the cancellation always relied on the first connection in the set to do the job. This could cause problems when this slot's socket is gone as PQgetCancel() would return NULL in this case. Rather than always using the first connection, this changes the logic to use the first valid connection for the cancellation.
Author: Ranier Vilela Reviewed-by: Justin Pryzby Discussion: https://postgr.es/m/CAEudQAokk1h_pUwGXsYS4oVOuf35s1O2o3TXGHpV8=awikv...@mail.gmail.com Backpatch-through: 14 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/52144b6fcd626bb7dbe9fe282329c0174620a34b Modified Files -------------- src/fe_utils/parallel_slot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
