On Fri, May 8, 2026 at 9:19 AM Michael Paquier <[email protected]> wrote: > On Thu, May 07, 2026 at 11:04:16AM +0300, Alexander Korotkov wrote: > > Let me do a quick summary: > > * Our buffer manager is not capable for reading temp tables of other > > sessions. > > * This was covered by explicit checks, but broken since b7b0f3f27241 > > introduced alternative code path for reading tables. > > * This doesn't apply to DROP TABLE. DROP TABLE is a conscious > > exclusion and the only operation we can do correctly for other > > session' temp tables. There is an explicit exclusion in the code to > > skip the attempt to cleanup buffers of other session' temp tables. > > * This patchset consists of tests (0001) for various operations with > > other session's temp tables including buggy behavior, and the fix > > (0002) including changes for tests. > > > > Thus, I don't see the reason why this shouldn't be committed and > > backpatched to PG17 (first release containing b7b0f3f27241). > > Opinions? Michael? > > Hmm. I don't have any counter-arguments against a backpatch based on > your argument related to b7b0f3f27241. Thanks for reorganizing the > patch set so as the tests happen first, and the changes in the code > become second. > > If you wish me to look at this patch set in details, I may be able to > do so around the beginning of next week. I'm not sure that there is a > strong urgency in tackling this issue for this minor release, this > could wait a bit more..
Absolutely, no urgency to include it into this minor release as I already agreed [1]. You're very welcome if you could take a look in the beginning of the next week. Links. 1. https://www.postgresql.org/message-id/CAPpHfdsEr6RF-SkzVGD6PzFusENbpNPxKnRY7iQQ%3DcZQYJia6w%40mail.gmail.com ------ Regards, Alexander Korotkov Supabase
