Re: Multicolun index creation never completes on 9.0.1/solaris
От | Josh Berkus |
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Тема | Re: Multicolun index creation never completes on 9.0.1/solaris |
Дата | |
Msg-id | 4D3F8D7F.6020806@agliodbs.com обсуждение исходный текст |
Ответ на | Re: Multicolun index creation never completes on 9.0.1/solaris (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Multicolun index creation never completes on 9.0.1/solaris
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Список | pgsql-bugs |
>> If it's going to take 3 minutes each to write each of 3745 tapes, that >> means completing in around 9 days. > > Your logic has nothing to do with what is actually happening. Could we > have a little bit more patience to see what happens next? OK, I'll let it run overnight and give you the trace output. > (Memo to -hackers: what we lack in this trace is any indication of how > long the runs are. Maybe should add that. Knuth claims the initial > runs should amount to about 2X maintenance_work_mem on average, but > maybe there's something unusual about the data distribution here.) Well, for the straight test on event_time, the rows in the table should have been more-or-less physically already in order. This table is most-insert, and event_time mostly corresponds to current server time. For the composite index, rows would be more randomly distributed. -- -- Josh Berkus PostgreSQL Experts Inc. http://www.pgexperts.com
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