Re: "reverse()" on strings

On Mon, 26 Aug 2002 16:13:44 -0400, h012 wrote:


>  CREATE INDEX extension_idx ON file (reverse(name));
> -- but I didn't find a function called "reverse"
> 
>  CREATE INDEX extension_idx ON file (regex_match( '.*(\.[^\.]*)$' );
> -- but I didn't find a function called "regex_match" which would return
> string matched in brackets ()
> 

You probably want to do a

$ createlang plperl

and then something like this:

CREATE FUNCTION fn_strrev(text) returns text as '
return reverse($_[0])
' language 'plperl' with (iscachable);

The same approach can be used to provide a regex match with Perl syntax,
but I don't have an example of that coded up and at hand.


-- 
Jeff Boes                                      vox 269.226.9550 ext 24
Database Engineer                                     fax 269.349.9076
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