В Сб, 01/01/2022 в 15:19 +1300, David Rowley пишет: > On Fri, 31 Dec 2021 at 00:14, Yura Sokolov <y.soko...@postgrespro.ru> wrote: > > Problem: > > - Append path is created with explicitely parallel_aware = true > > - It has two child, one is trivial, other is parallel_aware = false . > > Trivial child is dropped. > > - Gather/GatherMerge path takes Append path as a child and thinks > > its child is parallel_aware = true. > > - But Append path is removed at the last since it has only one child. > > - Now Gather/GatherMerge thinks its child is parallel_aware, but it > > is not. > > Gather/GatherMerge runs its child twice: in a worker and in a leader, > > and gathers same rows twice. > > Thanks for the report. I can confirm that I can recreate the problem > with your script. > > I will look into this further later next week. >
Good day, David. Excuse me for disturbing. Any update on this? Any chance to be fixed in next minor release? Could this simple fix be merged before further improvements? Yura.
