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Date: Wed, 23 May 2018 04:12:10 -0700 (MST)
From: mlunnon <mlunnon@rwa-net.co.uk>
To: pgsql-performance@postgresql.org
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Subject: Re: Help me in reducing the CPU cost for the high cost query below,
 as it is hitting production seriously!!
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Hi Pavan,
that's quite a big query. I can see that the generate_series function is
getting repeatedly called and the planner estimates for this sub query are
out by a factor of 66. You might try to re-write using a WITH query. I am
assuming that you have already analyzed all the tables and also added
appropriate indexes on join/query columns.
Regards
Matthew



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