Re: [HACKERS] escape character \

>
> Seems there's a bug using ESCAPE character (\) on LIKE clause:
>
> prova=> create table tmp ( a text);
> CREATE
> prova=> insert into tmp values('\\');
> INSERT 178729 1
> prova=> select * from tmp where a = '\\';
> a
> --
> \\
> (1 row)
>
> prova=> select * from tmp where a like '%\\%';
> a
> -
> (0 rows)
>
> prova=> select * from tmp where a like '%\\\\%';
> a
> --
> \\
> (1 row)
>
> -- how many \ do I have to use? 1, 2, 3, 4 or 5 ???
>
> prova=> select * from tmp where a like '%\\\\\%';
> a
> --
> \\
> (1 row)
>                                                   Jose'

The problem is that that \\ is need to input a backslash, and we support
\ to escape special characters like %, so \\\\ is need to test for a
backslash in a LIKE.  Is this not standard?  I suppose not.  Should we
remove the special use of \ in LIKE?  Comments?


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