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Re: Table scan on 15.2

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Subject: Re: Table scan on 15.2
From: Tom Lane <tgl@xxxxxxxxxxxxx>
Date: Wed, 15 Mar 2023 12:03:22 -0400
Cc: pgsql-general@xxxxxxxxxxxxxx
Comments: In-reply-to Arthur Ramsey <arthur.ramsey@xxxxxxxxxx> message dated "Wed, 15 Mar 2023 10:17:37 -0500"
In-reply-to: <CAEJqy4WBz=C67tJ4Sjq_T0yTwO0b7_ye34xVY7cxrSDXqnucjg@mail.gmail.com>
References: <CAEJqy4WBz=C67tJ4Sjq_T0yTwO0b7_ye34xVY7cxrSDXqnucjg@mail.gmail.com>

Arthur Ramsey <arthur.ramsey@xxxxxxxxxx> writes:
> I've upgraded from 12.11 to 15.2 and I'm seeing this query now use a
> sequential scan which is taking 500ms instead of < 2ms.  If I disable
> sequential scans then it performs as well as 12.11.

What does the EXPLAIN look like with seqscans disabled?

			regards, tom lane

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