RE: Regular expression question

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От Michael Ansley
Тема RE: Regular expression question
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Msg-id 7F124BC48D56D411812500D0B747251480F32E@fileserver002.intecsystems.co.uk
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Ответ на Regular expression question  (Steve Heaven <steve@thornet.co.uk>)
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Hmmm, what I proposed earlier (CREATE INDEX foo ON employees (UPPER(firstname));) seems to work fine in 7.1 but not 7.0.2.

Cheers...

MikeA


-----Original Message-----
From: Steve Heaven [mailto:steve@thornet.co.uk]
Sent: 11 December 2000 11:10
To: pgsql-general@postgresql.org
Subject: [GENERAL] Regular expression question

Does the regular expression parser have anything equivalent to Perl's \w
word boundary metacharacter?

I want to select tuples where a text field contains a certail whole word.
Using fieldname ~* 'searchword' wont work because it picks up the
searchword emdedded in other words. Using ~*' searchword ' wont find it at
the beginning or end of the string.
So far we have:
 field ~*' searchword ' OR field ~*'^searchword ' OR field ~*' searchword$'
but I would like something more elegant.

Steve

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