Re: Very slow Query compared to Oracle / SQL - Server

From: Andreas Joseph Krogh <andreas(at)visena(dot)com>
To: Semen Yefimenko <semen(dot)yefimenko(at)gmail(dot)com>
Cc: Alexey M Boltenkov <padrebolt(at)yandex(dot)ru>, luis(dot)roberto(at)siscobra(dot)com(dot)br, pgsql-performance <pgsql-performance(at)lists(dot)postgresql(dot)org>
Subject: Re: Very slow Query compared to Oracle / SQL - Server
Date: 2021-05-06 19:26:07
Message-ID: VisenaEmail.2.8fd1850819f96dd.1794322fd82@tc7-visena
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På torsdag 06. mai 2021 kl. 20:59:34, skrev Semen Yefimenko <
semen(dot)yefimenko(at)gmail(dot)com <mailto:semen(dot)yefimenko(at)gmail(dot)com>>:
Yes, rewriting the query with an IN clause was also my first approach, but I
didn't help much.
The Query plan did change a little bit but the performance was not impacted.
CREATE INDEX idx_arcstatus_le1 ON schema.logtable ( archivestatus ) where
(archivestatus <= 1)
ANALYZE schema.logtable

This resulted in this query plan:
[...]

I assume (4000,4001,4002) are just example-values and that they might be
anything? Else you can just include them in your partial-index.

--
Andreas Joseph Krogh

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