On Wed, Apr 30, 2025 at 3:51 PM Markus Demleitner < msdem...@ari.uni-heidelberg.de> wrote:
> Dear List, > > I know how tedious mails with a subject of the type "I don't understand > what the planner does" are, but on this one I'm really stumped. > Regrettably, the situation is also a bit complex. Hopefully, someone > will bear with me. > > So, in a PostgreSQL 15.12 I have a view over a single table with ~20 > columns (the only relevant columns here are the ones that somehow > contain "pub[lisher]_did", the others are just there for context; I'm > going to call these "pubdids" from here on in the prose): > [snip] > Is there anything that would explain that behaviour given I've switched > off the genetic optimiser and postgres has hopefully exhaustively > searched the space of plans in both cases? > Are the tables regularly analyzed and vacuumed? (The default autovacuum analyze threshold of 20% is pretty high.) -- Death to <Redacted>, and butter sauce. Don't boil me, I'm still alive. <Redacted> lobster!
