Re: Re: Performance degradation in PostgreSQL 7.1beta3 vs
От | bruc@stone.congenomics.com (Robert E. Bruccoleri) |
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Тема | Re: Re: Performance degradation in PostgreSQL 7.1beta3 vs |
Дата | |
Msg-id | 200101171530.KAA65999@stone.congenomics.com обсуждение исходный текст |
Ответ на | Re: Re: Performance degradation in PostgreSQL 7.1beta3 vs 6.5.3 (Hannu Krosing <hannu@tm.ee>) |
Список | pgsql-hackers |
Dear Hannu, > > "Robert E. Bruccoleri" wrote: > > > > explain select count(*) from comparisons_4 where code = 80003; > > NOTICE: QUERY PLAN: > > > > Aggregate (cost=15659.29..15659.29 rows=1 width=0) > > -> Seq Scan on comparisons_4 (cost=0.00..15640.81 rows=7391 width=0) > > > > EXPLAIN > > What is the type of field "code" ? int4 Do you think that should make a difference? +----------------------------------+------------------------------------+ | Robert E. Bruccoleri, Ph.D. | Phone: 609 737 6383 | | President, Congenomics, Inc. | Fax: 609 737 7528 | | 114 W Franklin Ave, Suite K1,4,5 | email: bruc@acm.org | | P.O. Box 314 | URL: http://www.congen.com/~bruc | | Pennington, NJ 08534 | | +----------------------------------+------------------------------------+
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