Thank you for your response.
Are there any technique to index that query for like search on Text[]
Columns?
Thanks.
Nakagawa Maskai
--------------------------------------------------
From: "Tom Lane" <t...@sss.pgh.pa.us>
Sent: Saturday, January 15, 2011 2:56 AM
To: "中川 誠貴" <nakag...@ivp.co.jp>
Cc: <pgsql-sql@postgresql.org>
Subject: Re: [SQL] why does seq scan instead of index scan
=?iso-2022-jp?B?GyRCQ2ZAbiEhQD81LhsoQg==?= <nakag...@ivp.co.jp> writes:
I'm trying to use like 'xx%' search on Text[] column.
I thought it uses index scan. But actually it uses seq scan.
Why?
Those ANY expressions are not indexable.
regards, tom lane
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