Re: Memory leaks on SRF rescan

Neil Conway <neilc(at)samurai(dot)com> writes:
> On Thu, 2008-02-21 at 21:42 -0500, Tom Lane wrote:
>> Yeah. I think it's hopeless to expect these functions to all hew to
>> the straight and narrow path. It seems to me that the right way is for
>> the sub-select to somehow run in its own "per-query" context.

> Hmm, I was thinking of just fixing this by arranging for the
> FuncCallContext's multi-call context to be a special context created by
> the function scan, and that is reset/deleted at the appropriate time.
> Would this not fix the issue as well?

That might work, particularly if we could arrange for all the functions
invoked in a particular subquery to share the same "per query" context.
Want to take a whack at it?

regards, tom lane