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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andreas Gaab <A.Gaab@scanlab.de>
Cc: pgsql-sql@postgresql.org <pgsql-sql@postgresql.org>
Subject: Re: aggregation of setof
Date: Mon, 31 Jan 2011 10:32:03 -0500
Message-ID: <16976.1296487923@sss.pgh.pa.us> (raw)
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Andreas Gaab <A.Gaab@scanlab.de> writes:
> Could not the function regexp_matches(text, text) be defined to only return a text[] not a setof text[]?

It'd be pretty hard to change at this point, because of
backwards-compatibility considerations, and because the two functions
share a single implementation.

			regards, tom lane

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