Re: Regular expressions or LIKE ? HELP needed !

From: Jeff Eckermann <jeff_eckermann(at)yahoo(dot)com>
To: Holger Klawitter <lists(at)klawitter(dot)de>, herve(at)elma(dot)fr, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Regular expressions or LIKE ? HELP needed !
Date: 2002-08-01 13:22:32
Message-ID: 20020801132232.53848.qmail@web20810.mail.yahoo.com
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A safe method that always works is simply to use a
character class, like:

select name block where code ~* 'lower [(]'

--- Holger Klawitter <lists(at)klawitter(dot)de> wrote:
>
> > How to escape a "(" ??
>
> select name block where code ~* 'lower\\(';
>
> First, you have to escape the '(' in order to make
> regexps match the bracket
> instead of using it as a grouping operator.
>
> And then you have to escape the escape in order to
> get it passed to the regexp
> system (at least with psql).
>
> > select name from block where code ike
> '%lower(''%';
>
> Works for me in 7.2.1 (ike should be ilike). Which
> postgres version are you
> running?
>
> With kind regards / mit freundlichem Gru
> Holger Klawitter
> --
> Holger Klawitter
> http://www.klawitter.de
> lists(at)klawitter(dot)de
>
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