Re: Query performance issue - Mailing list pgsql-performance

From Venkat Balaji
Subject Re: Query performance issue
Date
Msg-id CAFrxt0jTkVq1RjuRr=SHn9sXBJm7kG0B8LZ7fmt_UzX6ZxDF2w@mail.gmail.com
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In response to Query performance issue  (Jayadevan M <Jayadevan.Maymala@ibsplc.com>)
List pgsql-performance
Missed out looping in community...

On Wed, Aug 31, 2011 at 5:01 PM, Venkat Balaji <venkat.balaji@verse.in> wrote:
Could you help us know the tables and columns on which Indexes are built ?

Query is performing sorting based on key upper(column) and that is where i believe the cost is high.

The 'upper'  function is used up in the where clause?

Thanks
Venkat


On Wed, Aug 31, 2011 at 4:49 PM, Jayadevan M <Jayadevan.Maymala@ibsplc.com> wrote:
Hello,

> >
> > Please run EXPLAIN ANALYZE on the query and post that, it's hard to say
> > what's wrong from just the query plan, without knowing where the time is
> > actually spent.
> Here is the explain analyze
>
http://explain.depesz.com/s/MY1

Going through the url tells me that statistics may be off. I will try analyzing the tables. That should help?

Regards,
Jayadevan





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