Re: [Patch] Optimize dropping of relation buffers using dlist

Alexander Korotkov <aekorotkov@gmail.com>

From: Alexander Korotkov <aekorotkov@gmail.com>

To: Kyotaro Horiguchi <horikyota.ntt@gmail.com>

Cc: k.jamison@fujitsu.com, tsunakawa.takay@fujitsu.com, Andres Freund <andres@anarazel.de>, Amit Kapila <amit.kapila16@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Thomas Munro <thomas.munro@gmail.com>, Robert Haas <robertmhaas@gmail.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2020-11-27T08:30:22Z

Lists: pgsql-hackers

Hi!

I've found this patch is RFC on commitfest application.  I've quickly
checked if it's really ready for commit.  It seems there are still
unaddressed review notes.  I'm going to switch it to WFA.

------
Regards,
Alexander Korotkov

Commits

Fix size overflow in calculation introduced by commits d6ad34f3 and bea449c6.
- 519e4c9ee21a 14.0 landed
Optimize DropRelFileNodesAllBuffers() for recovery.
- bea449c635c0 14.0 landed
Optimize DropRelFileNodeBuffers() for recovery.
- d6ad34f3410f 14.0 landed
Cache smgrnblocks() results in recovery.
- c5315f4f4484 14.0 cited
Add a check to prevent overwriting valid data if smgrnblocks() gives a
- ffae5cc5a602 8.2.0 cited