From: Tom Lane <tgl@sss.pgh.pa.us>
To: Wes James <comptekki@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: how to escape _ in select
Date: Wed, 28 Jul 2010 14:34:20 -0400
Message-ID: <20369.1280342060@sss.pgh.pa.us> (raw)
In-Reply-To: <AANLkTi=7K_xTEQSFaOX3=K_YDiNjvDedjcfBSTRpO240@mail.gmail.com>
References: <AANLkTi=7K_xTEQSFaOX3=K_YDiNjvDedjcfBSTRpO240@mail.gmail.com>
Wes James <comptekki@gmail.com> writes:
> I'm trying to do this:
> select * from table where field::text ilike '%\_%';
> but it doesn't work.
You need to double the backslash, because one level of
backslash-escaping will be eaten by the string literal parser.
In the above example, the actual string value seen by ILIKE
is just %_%, so of course it doesn't do what you want.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, comptekki@gmail.com
Subject: Re: how to escape _ in select
In-Reply-To: <20369.1280342060@sss.pgh.pa.us>
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