Am Montag, 12. November 2007 schrieb Martijn van Oosterhout:
> On Mon, Nov 12, 2007 at 03:44:18PM -0500, Aidan Van Dyk wrote:
> > Can LIKE be easily overloaded in the parser? So:
> > text LIKE text
> > works in it's current form, and
> > tsvector LIKE tsquery
> > also works like the @@? Or have I gotten all the ts* types all mixed up
> > again...
>
> AIUI LIKE is mashed into an operator at parse time, so yes, if you
> create the operator with the right name it will just work.
What we'd need is a way to convert a LIKE pattern into a tsquery ('%foo%bar%'
=> 'foo & bar'). Then you might even be able to sneak index-optimized text
search into existing applications. Might be worth a try.
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
