On 04/29/2018 05:10 PM, Amit Kapila wrote: > Yeah, it would have been convenient, if Gather and Finalize Aggregate > displays that way as it would have been easier for users to > understand. However, as of now, the aggregated stats for parallel > workers and leader are displayed at parallel/partial nodes as is > displayed in the plan. So according to me, what you are seeing is > okay, it is only slightly tricky to understand it. > [...] > >> I played with git bisect and I found this commit : >> >> commit 01edb5c7fc3bcf6aea15f2b3be36189b52ad9d1a >> Author: Tom Lane <t...@sss.pgh.pa.us> >> Date: Fri Sep 1 17:38:54 2017 -0400 >> > I think you were seeing different results before this commit because > before that we were shutting down workers as soon as parallel workers > are done and the buffer_usage stats were accumulated and were being > used for upper nodes. According to me behavior after the commit is > consistent, for example, I think if you check the case of GatherMerge > before this commit, you will still get the stats in the way it is > after commit.
I understand. Maybe, this change should be mentioned in releases notes and/or documentation? Thanks,
signature.asc
Description: OpenPGP digital signature
