Tighten asserts on ParallelWorkerNumber The comment about ParallelWorkerNumbr in parallel.c says:
In parallel workers, it will be set to a value >= 0 and < the number of workers before any user code is invoked; each parallel worker will get a different parallel worker number. However asserts in various places collecting instrumentation allowed (ParallelWorkerNumber == num_workers). That would be a bug, as the value is used as index into an array with num_workers entries. Fixed by adjusting the asserts accordingly. Backpatch to all supported versions. Discussion: https://postgr.es/m/[email protected] Reviewed-by: Bertrand Drouvot <[email protected]> Backpatch-through: 14 Branch ------ REL_17_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/2fa42feb7921d9486d56a38608d2b27b8f4e607c Modified Files -------------- src/backend/executor/nodeAgg.c | 2 +- src/backend/executor/nodeIncrementalSort.c | 2 +- src/backend/executor/nodeMemoize.c | 2 +- src/backend/executor/nodeSort.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-)
