Hi, On 2022-03-22 18:41:45 -0400, Tom Lane wrote: > Mark Dilger <mark.dil...@enterprisedb.com> writes: > >> On Mar 22, 2022, at 3:20 PM, Andres Freund <and...@anarazel.de> wrote: > >> Seems like it might actually be good to test that object access hooks work > >> well in a parallel worker. How about going the other way and explicitly > >> setting > >> force_parallel_mode = disabled for parts of the test and to enabled for > >> others? > > > Wouldn't we get differing numbers of NOTICE messages depending on how > > many parallel workers there are? Or would you propose setting the > > number of workers to a small, fixed value?
Yes. > The value would have to be "1", else you are going to have issues > with notices from different workers being interleaved differently > from run to run. Yea. Possible one could work around those with some effort (using multiple notification channels maybe), but there seems little to glean from multiple workers that a single worker wouldn't show. > You might have that anyway, due to interleaving of leader and worker > messages. That part could perhaps be addressed by setting parallel_leader_participation = 0. Greetings, Andres Freund
