From: | Andreas Gaab <A(dot)Gaab(at)scanlab(dot)de> |
---|---|
To: | pgsql sql <pgsql-sql(at)postgresql(dot)org> |
Subject: | replace_matches does not return {null} |
Date: | 2011-02-22 11:25:03 |
Message-ID: | 48DA836F3865C54B8FBF424A3B775AF6671A68395D@Exchange-Server |
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Thread: | |
Lists: | pgsql-sql |
Hi,
I tried to order a text-column only by parts of the entries. Therefore I used regexp_matches(), but unfortunately I am loosing rows.
SELECT regexp_matches('abc','[0-9]+'), regexp_matches('123','[0-9]+');
Does not return "{null}, {123}" but no result at all.
Is this behavior expected? How can I work around?
I am running postgres 8.4
Andreas
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SCANLAB AG
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Entwicklung * R & D
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