From: Florian Weimer <fw@deneb.enyo.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-sql@postgresql.org
Subject: Re: Index to support LIKE '%suffix' queries
Date: Sat, 25 Feb 2006 18:52:43 +0100
Message-ID: <877j7jfhqs.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: <11673.1140888147@sss.pgh.pa.us>
References: <87mzgfh69m.fsf@mid.deneb.enyo.de>
<11673.1140888147@sss.pgh.pa.us>
* Tom Lane:
> Florian Weimer <fw@deneb.enyo.de> writes:
>> Is it possible to create an index to support queries of the form
>> "column LIKE '%suffix'" (similar to an ordinary index for LIKE
>> 'prefix%', which I also need)?
>
> Sounds like what you *really* need is full-text search, not half
> measures ... have you looked at tsearch2?
Uh-oh, the table in question has got 50+ million rows (and is still
growing). Each "document" contains about three words. Do you think
tsearch2 could deal with that?
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To: pgsql-sql@postgresql.org
Cc: fw@deneb.enyo.de, tgl@sss.pgh.pa.us
Subject: Re: Index to support LIKE '%suffix' queries
In-Reply-To: <877j7jfhqs.fsf@mid.deneb.enyo.de>
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