Yes! "set join_collapse_limit = 9" was enough to fix the plan, thanks Laurenz.
I will set both to 11.
-------- Original Message --------
From: Laurenz Albe [mailto:laurenz.albe@cybertec.at]
Sent: Thursday, April 11, 2024 at 14:21 UTC
To: ilya Basin; pgsql-general@lists.postgresql.org
Subject: subquery plan rows = 1, but it's merge joined instead of index lookup
On Thu, 2024-04-11 at 15:57 +0300, ilya Basin wrote:
Is there some complexity limit after which the planner starts acting dumb?
Yes, "join_collapse_limit" and "from_collapse_limit".
You can try increasing them.
Yours,
Laurenz Albe