From: kimaidou [mailto:kimai...@gmail.com]
Sent: Friday, February 22, 2019 10:37 AM
To:
pgsql-performance@lists.postgresql.org<mailto:pgsql-performance@lists.postgresql.org>
Subject: Slow query with aggregate and many LEFT JOINS
Hi all,
I need to optimize the following quer
From: kimaidou [mailto:kimai...@gmail.com]
Sent: Friday, February 22, 2019 10:37 AM
To: pgsql-performance@lists.postgresql.org
Subject: Slow query with aggregate and many LEFT JOINS
Hi all,
I need to optimize the following query
http://paste.debian.net/hidden/ef08f864/
I use it to create a
Hi all,
I need to optimize the following query
http://paste.debian.net/hidden/ef08f864/
I use it to create a materialized view, but I think there is room for
optimization.
I tried to
SET join_collapse_limit TO 15;
with to real difference.
Explain shows that the GROUP AGGREGATE and needed sort ki
