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From: Tom Lane <[email protected]>
To: Peter Eisentraut <[email protected]>
Cc: [email protected]
Subject: Re: pattern matching indexing
Date: Mon, 24 Dec 2012 10:12:45 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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Peter Eisentraut <[email protected]> writes:
> To index pattern matching, you can use the _pattern_ops operator
> classes, or you can set the column collation in the index to "C".  The
> latter option doesn't appear to be documented (unless you read very deep
> between the lines).  Is that intentional?

It is stated at
http://www.postgresql.org/docs/devel/static/indexes-opclass.html
that you don't need the special pattern opclasses in C locale.
Feel free to rephrase or document elsewhere if you find that too
obscure.

			regards, tom lane


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