Re: Escaping \

From: "Martijn van Dijk" <martijn@hardworks.nl>

> I've a problem with escaping a \ in a string.
>
> When I enter the query:
>
> SELECT '''\\\''; I get the right result: '\'
>
> But when I try this in a Function:
>
> CREATE FUNCTION sp_tmp() RETURNS varchar(10)
> AS '
>         SELECT ''\\\' AS RESULT'
> LANGUAGE 'sql';
>
> I get the following Parse-erros:
>
> psql:tmp1:4: ERROR:  Unterminated quoted string. I don't understand why,
> when you leave the SELECT-statement out you get '''\\\'' and that is not
> unterminated.

Had something similar myself the other day. The reason is that you are
already one deep in Postgres' string-parser, so you need something like:

SELECT ''\\\\'' AS RESULT

HTH

- Richard Huxton