Horton

Don't enter parallel mode when holding interrupts.

Noah Misch <noah@leadboat.com>

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Commit: 2370582ab14f179eb8edd748d629edf991999989
Author: Noah Misch <noah@leadboat.com>
Date: 2024-09-18T02:54:25Z
Releases: 17.0 
Don't enter parallel mode when holding interrupts.

Doing so caused the leader to hang in wait_event=ParallelFinish, which
required an immediate shutdown to resolve.  Back-patch to v12 (all
supported versions).

Francesco Degrassi

Discussion: https://postgr.es/m/CAC-SaSzHUKT=vZJ8MPxYdC_URPfax+yoA1hKTcF4ROz_Q6z0_Q@mail.gmail.com

Files

PathChange+/−
src/backend/optimizer/plan/planner.c modified +6 −0
src/test/regress/expected/select_parallel.out modified +24 −0
src/test/regress/sql/select_parallel.sql modified +31 −0

Discussion