Alex Povolotsky <tarkhil@over.ru> writes:
> I'm working on a project requiring fast query like 'does ADDRESS belongs
> to SET OF NETWORKS?'. Naturally, such a query is better implemented
> using PATRICIA, but building PATRICIA tree is a relatively long task and
> is better to be done once, for instance, at server startup.

> I'm thinking of implementing such a tree using stored procedures, and
> looking for advise from postgresql-hackers: how can I hook startup of
> server?

> Idea of having something like a blob to store and restore PATRICIA tree
> may be better suited to standard SQL, but I'm looking for more elegant
> solution. Or am I totally wrong?

If it's as expensive as all that, why would you want to redo it even at
server start? Maybe a new index type would be appropriate.

regards, tom lane

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