Обсуждение: Re: temporary tables, plpgsql and yes i bet this has been asked
Tom Lane wrote: > Jan Wieck <janwieck@yahoo.com> writes: > > SPI still needs to learn how to determine if a query uses > > temp tables somewhere in order to silently re-prepare queries > > when required. And I am absolutely sure this is not an issue > > we should address in PL/pgSQL. It has to be solved on the SPI > > level. > > Temp tables are the wrong way to think about it. *Any* invalidation > of schema data referred to in a query plan should cause replanning. > We have a TODO item covering this already, don't we? If we do, I don't see it. Care to give me one? I am not sure how to word it. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
Bruce Momjian <pgman@candle.pha.pa.us> writes: > Tom Lane wrote: >> Temp tables are the wrong way to think about it. *Any* invalidation >> of schema data referred to in a query plan should cause replanning. >> We have a TODO item covering this already, don't we? > If we do, I don't see it. Care to give me one? Hmm, I don't see one either. Odd, we've sure discussed it often enough. How about * Flush cached query plans when their underlying catalog data changes Probably belongs under "DEPENDENCY CHECKING". BTW, I was slightly startled to read this under URGENT: * Allow row re-use without vacuum (Tom) I don't consider this urgent or even likely ever to happen, and I certainly have not taken responsibility to do it. regards, tom lane