Hi David, On Mon, Nov 02, 2020 at 12:49:52AM +0000, David Rowley wrote: > Allow run-time pruning on nested Append/MergeAppend nodes > > Previously we only tagged on the required information to allow the > executor to perform run-time partition pruning for Append/MergeAppend > nodes belonging to base relations. It was thought that nested > Append/MergeAppend nodes were just about always pulled up into the > top-level Append/MergeAppend and that making the run-time pruning info for > any sub Append/MergeAppend nodes was a waste of time. However, that was > likely badly thought through.
fairywen is telling that some of the plans produced in these new tests are not stable: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=fairywren&dt=2020-11-02%2005%3A20%3A53 Thanks, -- Michael
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