Re: Missing query plan for auto_explain. - Mailing list pgsql-general

From Alvaro Herrera
Subject Re: Missing query plan for auto_explain.
Date
Msg-id 20220830164512.7oq5g7i256b3zvzp@alvherre.pgsql
Whole thread Raw
In response to Re: Missing query plan for auto_explain.  (Matheus Martin <matheus.martin@voidbridge.com>)
Responses Re: Missing query plan for auto_explain.
Re: Missing query plan for auto_explain.
List pgsql-general
On 2022-Aug-30, Matheus Martin wrote:

> Good idea on using an actual prepared statement but unfortunately it didn't
> produce any different result.

I should have also mentioned to try the EXPLAIN EXECUTE six times and
see if the last one produces a different plan.  That's when it switches
from planning every time to planning with generic arguments, as I
recall.

> Could you please elaborate a bit on your advice concerning
> ExecutorEnd/PortalCleanup? I am afraid it doesn't mean much to me.

That wasn't advice actually, just a note that the code might be doing
that thing wrong, causing auto_explain to miss it.  This is an unproven
hypothesis that is likely to be all wrong.

-- 
Álvaro Herrera         PostgreSQL Developer  —  https://www.EnterpriseDB.com/
"I'm impressed how quickly you are fixing this obscure issue. I came from 
MS SQL and it would be hard for me to put into words how much of a better job
you all are doing on [PostgreSQL]."
 Steve Midgley, http://archives.postgresql.org/pgsql-sql/2008-08/msg00000.php



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