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From: gnari <[email protected]>
To: Ken Tanzer <[email protected]>
To: [email protected]
Subject: Re: Regexp matching:  bug or operator error?
Date: Wed, 24 Nov 2004 00:23:33 -0000
Message-ID: <01c601c4d1bb$d4df25a0$0100000a@wp2000> (raw)
References: <[email protected]>

From: "Ken Tanzer" <[email protected]>


> Using Postgres V. 7.4.1, the following query:
>
>     SELECT substring('X12345X' FROM '.*?([0-9]{1,5}).*?');
>
> Returns '1'.  I would expect it to return '12345'.  Is this a bug, or am
> I missing something?  Thanks.

the results of mixing greedy and non-greedy repetitions can be difficult to
predict.

try SELECT substring('X12345X' FROM '\\D*(\\d{1,5}).*?');

gnari

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