Re: knngist - 0.8

On Mon, Aug 09, 2010 at 06:35:47PM -0300, Euler Taveira de Oliveira wrote:
> Alexander Korotkov escreveu:
> > Such approach can give benefit when we need to filter by
> > similarity. For example, in pg_trgm "%" is used for similarity
> > filtering, but similarity threshold is global for session. That's
> > why we can't create complex queries which contain similarity
> > filtering with different threshold.
> >
> What do you mean by complex queries? You can always use the SET
> command. Sadly it doesn't work when you have different thresholds
> within distinct subqueries. (In pg_similarity I use this approach
> to set the function's thresholds). What I am investigating is a way
> to build an index with some user-defined parameters. (We already
> have some infra-structure in reloptions for that but it needs some
> work to support my idea). I have some half-baked patch that I'm
> planning to submit to some of the CFs. Unfortunately, I don't have
> time for it ATM.

Do you have enough of it to send out as WIP?

Cheers,
David.
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