From: Tom Lane <tgl@sss.pgh.pa.us>
To: maxim.boguk@gmail.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17871: JIT during postgresql_fdw remote_estimates EXPLAIN have very negatively effect on planning time
Date: Mon, 27 Mar 2023 10:53:28 -0400
Message-ID: <3169906.1679928808@sss.pgh.pa.us> (raw)
In-Reply-To: <17871-16521a70c16cb83c@postgresql.org>
References: <17871-16521a70c16cb83c@postgresql.org>
PG Bug reporting form <noreply@postgresql.org> writes:
> Checking what's going on the remote side leads to the following results:
> remote estimate explain calls from fdw with jit=on
> [EXPLAIN] LOG: duration: 97.050 ms statement: EXPLAIN SELECT topic_id,
> review_id, move_to_invitation_state_time, no_interview_reply_time,
> review_suggestion_chat_message_creation_time FROM
> public.interview_review_info_archive
> vs
> remote estimate explain calls from fdw with jit=off
> [EXPLAIN] LOG: duration: 3.343 ms statement: EXPLAIN SELECT topic_id,
> review_id, move_to_invitation_state_time, no_interview_reply_time,
> review_suggestion_chat_message_creation_time FROM
> public.interview_review_info_archive
Do you see the same discrepancy when you execute EXPLAIN manually
on the remote side? If so, I wouldn't blame postgres_fdw for it.
I suppose interview_review_info_archive is a view not a plain table?
In either case, could we see the DDL definition for it?
regards, tom lane
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To: pgsql-bugs@postgresql.org
Cc: tgl@sss.pgh.pa.us, maxim.boguk@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17871: JIT during postgresql_fdw remote_estimates EXPLAIN have very negatively effect on planning time
In-Reply-To: <3169906.1679928808@sss.pgh.pa.us>
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