Re: TODO items
От
Tom Lane
Тема
Re: TODO items
Дата
Msg-id
28341.1060363577@sss.pgh.pa.us
Ответ на
Re: TODO items (Bruce Momjian)
Список
Дерево обсуждения
TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Josh Berkus <josh@agliodbs.com>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Joe Conway <mail@joeconway.com>
Re: TODO items Josh Berkus <josh@agliodbs.com>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Joe Conway <mail@joeconway.com>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Josh Berkus <josh@agliodbs.com>
Re: TODO items Joe Conway <mail@joeconway.com>
Re: PROCEDURES was: TODO items Josh Berkus <josh@agliodbs.com>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Tom Lane <tgl@sss.pgh.pa.us>
Re: TODO items Hannu Krosing <hannu@tm.ee>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Tom Lane <tgl@sss.pgh.pa.us>
Re: TODO items Joe Conway <mail@joeconway.com>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Re: TODO items Tom Lane <tgl@sss.pgh.pa.us>
Re: TODO items Bruce Momjian <pgman@candle.pha.pa.us>
Bruce Momjian writes: >>> * Use index to restrict rows returned by multi-key index when used with >>> non-consecutive keys or OR clauses, so fewer heap accesses >> >> Not sure what this means. > This is a Vadim idea. The idea was that if you had a multi-key index on > col1,col2,col3, and you wanted to do a lookup on col1,col3, you could > still use the index, and just run through all the matching col1 values > looking for a matching col3 in the index, rather than going to the heap > and looking for a col3 match? Is this item worth keeping? Hmm. Maybe. Might as well leave it there awhile longer. regards, tom lane
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