From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Richard Huxton <dev(at)archonet(dot)com> |
Cc: | "Campbell, Lance" <lance(at)uiuc(dot)edu>, pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Like problem |
Date: | 2008-02-13 16:52:41 |
Message-ID: | 16828.1202921561@sss.pgh.pa.us |
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Lists: | pgsql-sql |
Richard Huxton <dev(at)archonet(dot)com> writes:
> Campbell, Lance wrote:
>> WARNING: nonstandard use of escape in a string literal
>> LINE 1: ...ct c1 from t1 where c1 like '%abc\_%';
> Either indicate you are using an escaped string: LIKE E'%abc\_%'
Actually that's wrong, what he'd need is LIKE E'%abc\\_%'
(or omit the E and ignore the warning).
Alternatively, set standard_conforming_strings to TRUE and write
LIKE '%abc\_%' ... but beware that that might break other parts
of your app that are expecting backslash to be special.
> Or, change the escape character: LIKE '%abcQ_%' ESCAPE 'Q'
Yeah, this might be the easiest localized solution.
regards, tom lane
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