Re: psql microsecond timing patch
От | Bruce Momjian |
---|---|
Тема | Re: psql microsecond timing patch |
Дата | |
Msg-id | 200109281943.f8SJhaf13991@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: psql microsecond timing patch (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-patches |
> greg@turnstep.com writes: > > This is a small patch to allow you to time your queries in > > psql. Myself and some others have been using it and find it > > useful for telling how long an actual specific query takes, > > as opposed to EXPLAIN which just does an estimate. > > Hmm. Is there any value in this now that we have EXPLAIN ANALYZE? > > Microsecond-level timing on the client side seems like a dubious > proposition anyway ... FYI, EXPLAIN ANALYZE will appear in 7.2: test=> EXPLAIN ANALYZE SELECT * FROM pg_class; NOTICE: QUERY PLAN: Seq Scan on pg_class (cost=0.00..3.01 rows=101 width=115) (actual time=0.06..1.97 rows=101 loops=1) Total runtime: 2.51 msec EXPLAIN -- 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, Pennsylvania 19026
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