Re: [HACKERS] compression in LO and other fields
От | Bruce Momjian |
---|---|
Тема | Re: [HACKERS] compression in LO and other fields |
Дата | |
Msg-id | 199911120350.WAA26738@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [HACKERS] compression in LO and other fields (wieck@debis.com (Jan Wieck)) |
Список | pgsql-hackers |
> The compression rates aren't that giantic. I've got 30-50% > for rule plan strings (size limit on views!!!). And the > method used only allows for buffer back references of 4K > offsets at most, so the rate will not grow for larger data > chunks. That's a heavy tradeoff between compression rate and > no memory leakage for sure and speed, I know, but I prefer > not to force it, instead I usually use a bigger hammer (the > tuple size limit is still our original problem - and another > IBM 72GB disk doing 22-37 MB/s will make any compressing data > type obsolete then). > > Sorry for the compression specific slang here. Well, anyone > interested in the code? In contrib? -- 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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