Hannu Krosing kirjutas N, 22.01.2004 kell 22:46: > Shea,Dan [CIS] kirjutas N, 22.01.2004 kell 22:35: > > Something that I do not understand is why if you use a valid_time = > > '2004-01-22 00:00:00' the query will use the index but if you do a > > valid_time > '2004-01-22 00:00:00' it does not use the index? > > It probably can't tell if > is selective enough to justify using index. > > Together with "limit 10" it may be. > > You could try > > explain analyze select * from forecastelement where valid_time between > '2004-01-22'::date and '2004-01-22'::date limit 10;
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Sorry, that should have been: between '2004-01-22'::date and '2004-01-23'::date > to see if this is considered good enough. > > -------------- > Hannu > > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED] ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
