Re: Re: index doesn't work for null?
От | Alex Pilosov |
---|---|
Тема | Re: Re: index doesn't work for null? |
Дата | |
Msg-id | Pine.BSO.4.10.10105152041330.14362-100000@spider.pilosoft.com обсуждение исходный текст |
Ответ на | Re: index doesn't work for null? (Per-Olof Pettersson <pgsql@peope.net>) |
Список | pgsql-general |
Sorry bout that. Actually query does 'is null', I made a mistake in my post. -alex On Tue, 15 May 2001, Per-Olof Pettersson wrote: > Hi Alex > > I have no idea if it is a known issue. > Though "field=null" is not allowed in standard SQL. > The correct statement should be "select from xx where field IS NULL;". > > Perhaps it will be handled better (or not). > > Best regards > Per-Olof Pettersson > > >>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<< > > On 2001-05-16, 00:21:34, alex@pilosoft.com (Alex Pilosov) wrote regarding > index doesn't work for null?: > > > > I have a bit of a problem: > > > 'select from xx where field=null' will always result in seq scan even > when > > there's a [btree] index on the field. > > > Is this a known issue? > > > -alex > > > > ---------------------------(end of broadcast)--------------------------- > > TIP 6: Have you searched our list archives? > > > http://www.postgresql.org/search.mpl > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > >
В списке pgsql-general по дате отправления: