Re: [HACKERS] TODO list updated
От | Bruce Momjian |
---|---|
Тема | Re: [HACKERS] TODO list updated |
Дата | |
Msg-id | 200001130334.WAA29279@candle.pha.pa.us обсуждение исходный текст |
Ответ на | RE: [HACKERS] TODO list updated ("Hiroshi Inoue" <Inoue@tpf.co.jp>) |
Список | pgsql-hackers |
> > -----Original Message----- > > From: owner-pgsql-hackers@postgreSQL.org > > [mailto:owner-pgsql-hackers@postgreSQL.org]On Behalf Of Tom Lane > > > > TODO item comments: > > > > * Pull requested data directly from indexes, bypassing heap data > > > > I doubt this is ever going to happen --- to make it possible, we'd > > have to store tuple-commit status in index entries as well as in the > > tuples themselves. That would be a substantial space and speed penalty; > > is the potential gain really worth it? > > > > I agree with Tom. We could omit rows using indexes but cound't > pull data from indexes without time qualification of heap tuples now. Removed. > > > * -elog() flushes cache, try invalidating just entries from current xact, > > perhaps using invalidation cache > > > > I don't think this is done? > > > > If I recognize correctly this item,this was fixed by my recent changes > for cache invalidation though I had changed it without knowing this item. Great. I thought so. I remember some CVS messages saying this. -- Bruce Momjian | http://www.op.net/~candle maillist@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
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