Re: [HACKERS] domain_in performance considerations

2006-04-06 Thread Tom Lane
Alvaro Herrera <[EMAIL PROTECTED]> writes: > This is a shot in the dark, but I remember you commenting awhile back > that there was a way to register a callback to be called on memory > context reset or delete. AFAIR there's no such thing associated with memory contexts per se. There is one for ES

Re: [HACKERS] domain_in performance considerations

2006-04-06 Thread Alvaro Herrera
Tom Lane wrote: Hi, > It would be just a small change to make the code cache the EState across > calls, saving a link to it in the FmgrInfo, but I am worried about that. > If the EState's query context is made to be a child of the memory > context containing the caller's FmgrInfo, then there is n

[HACKERS] domain_in performance considerations

2006-04-05 Thread Tom Lane
Neil Conway wrote some pretty nice things here: http://www.advogato.org/person/nconway/diary.html?start=26 but commented > It would be worthwhile to investigate whether this results in a > performance regression, though: there's no easy way to cache the > executor machinery needed to evaluate a CHE