----- Mensagem original ----- > De: "Semen Yefimenko" <semen.yefimenko@xxxxxxxxx> > Para: "pgsql-performance" <pgsql-performance@xxxxxxxxxxxxxxxxxxxx> > Enviadas: Quinta-feira, 6 de maio de 2021 11:38:39 > Assunto: Very slow Query compared to Oracle / SQL - Server > SELECT column1,..., column54 where ((entrytype = 4000 or entrytype = 4001 or > entrytype = 4002) and (archivestatus <= 1)) order by timestampcol desc; The first thing I would try is rewriting the query to: SELECT column1,..., column54 FROM logtable WHERE (entrytype in (4000,4001,4002)) AND (archivestatus <= 1)) ORDER BY timestampcol DESC; Check if that makes a difference... Luis R. Weck
