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From: Tom Lane <tgl@sss.pgh.pa.us>
To: AminPG Jaffer <aminjaffer.pg@gmail.com>
cc: pgsql-performance@lists.postgresql.org
Subject: Re: Incorrect index used in few cases..
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Comments: In-reply-to AminPG Jaffer <aminjaffer.pg@gmail.com>
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AminPG Jaffer <aminjaffer.pg@gmail.com> writes:
> Is there an explanation why it is using incorrect index?

> SQL:
> SELECT count(*) FROM tc WHERE ((tc.a_id = $1)) AND ((tc.m_id = $2)) AND
> ((tc.ag_id is not null)) AND ((tc.id in ($3))) AND ((tc.pt in ($4, $5, $6)))

What data types are these columns?  For that matter, could we see the
whole schema for the table (psql \d+ output or equivalent)?

			regards, tom lane