Re: grep -f keyword data query

From: Andreas Kretschmer <akretschmer(at)spamfence(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: grep -f keyword data query
Date: 2015-12-27 10:23:00
Message-ID: 20151227102300.GA14631@tux
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Hiroyuki Sato <hiroysato(at)gmail(dot)com> wrote:

> Hello.
>
> I would like to create the query like the following.
> It work well, but extreme slow.
> Is it possible to improve this query like the command ``grep -f keyword data``?
>
> What kind of Index should I create on url_lists table?

can you show us the create table and create index - statements?
And, the explain analyse of your query? And, finally, the pg-version?

You got an index-scan, seems okay for me.

Andreas
--
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unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
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