Re: query performance issue

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Samir Magar <samirmagar8(at)gmail(dot)com>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: query performance issue
Date: 2017-11-15 09:43:23
Message-ID: CAFj8pRCyvCktcxtEQrmF4kw5oR1DNYd_4gJNd6mkjrHw_NPPPw@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

Hi

please send EXPLAIN ANALYZE output.

Regards

Pavel

2017-11-15 10:33 GMT+01:00 Samir Magar <samirmagar8(at)gmail(dot)com>:

> Hello,
> I am having performance issues with one of the query.
> The query is taking 39 min to fetch 3.5 mil records.
>
> I want to reduce that time to 15 mins.
> could you please suggest something to its performance?
>
> server configuration:
> CPUs = 4
> memory = 16 GM
> shared_buffers = 3 GB
> work_mem = 100MB
> effective_cache_size = 12 GB
>
> we are doing the vacuum/analyze regularly on the database.
>
> attached is the query with its explain plan.
>
> Thanks,
> Samir Magar
>
>
> --
> Sent via pgsql-performance mailing list (pgsql-performance(at)postgresql(dot)org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-performance
>
>

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Samir Magar 2017-11-15 12:54:45 Re: query performance issue
Previous Message Samir Magar 2017-11-15 09:33:39 query performance issue