Re: Proposals for EXPLAIN: rename ANALYZE to EXECUTE and extend VERBOSE
David Rowley <dgrowleyml@gmail.com>
From: David Rowley <dgrowleyml@gmail.com>
To: Guillaume Lelarge <guillaume@lelarge.info>
Cc: Greg Sabino Mullane <htamfids@gmail.com>,
Robert Haas <robertmhaas@gmail.com>, Michael Christofides <michael@pgmustard.com>,
"David G. Johnston" <david.g.johnston@gmail.com>, Nikolay Samokhvalov <samokhvalov@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>,
pgsql-hackers@postgresql.org
Date: 2024-12-10T02:57:43Z
Lists: pgsql-hackers
Attachments
- v5-0001-Enable-BUFFERS-by-default-with-EXPLAIN-ANALYZE.patch (application/octet-stream) patch v5-0001
- v5-0002-Enable-auto_explain.log_buffers-by-default.patch (application/octet-stream) patch v5-0002
On Thu, 21 Nov 2024 at 08:30, Guillaume Lelarge <guillaume@lelarge.info> wrote: > OK, I'm fine with this. v4 patch attached with one plan showing read, written, and dirtied buffers. Today I spent more time polishing this patch. There were a few cases in the docs that displayed EXPLAIN ANALYZE output that you'd not adjusted to include the buffers output or adjusted to do BUFFERS OFF. I think I've got all these now. Tom went to some effort to fix some outdated EXPLAIN outputs for v17 in 5caa05749, so I think we owe it to him not to let these go out of date so soon after that change. I also was thinking again about what Robert mentioned about auto_explain.log_buffers should now also be on by default. I'm less certain than him about this change. It seems like a separate consideration that we could apply many of the same arguments for the main change to. In any case, I extracted that change from the 0001 patch and put it in a 0002 patch as it doesn't seem like something that should be a sidenote in the commit message. I felt doing that increases the chances that it would be overlooked in the release notes. I was very close to pushing 0001 today, but will hold off until tomorrow to see if anyone has final comments. For 0002, I'd really like to see a bit more justification for it. For the record, I'm not against 0002, it's just that my personal arguments for wanting 0001 don't apply to 0002. David
Commits
-
Fix further fallout from EXPLAIN ANALYZE BUFFERS change
- 89988ac5891b 18.0 landed
-
Add missing BUFFERS OFF in regression tests, take 2
- 9df2a4b9316f 18.0 landed
-
Add missing BUFFERS OFF in select_into regression tests
- 9fa1aaa6525a 18.0 landed
-
Enable BUFFERS with EXPLAIN ANALYZE by default
- c2a4078ebad7 18.0 landed