Hi Thomas, i run following command
ANALYZE SAMPLE_SIZE 0 result is : Update count: 0 (356975 ms) SELECT DISTINCT(CATEGORY) FROM DATATBL (146 rows, 3096 ms) thnx buddy.. cheers to H2 team :-) :-) :-) :-) its really fast now i have question ??????????????? i have many DB having 2-3 million of records its all one time insert and there can be small updates later on major is selection how do i fast my select queries do i need to run "ANALYZE SAMPLE_SIZE 0" always after all insert how does it affect performance ???? On Nov 5, 6:35 am, "Thomas Mueller" <[EMAIL PROTECTED]> wrote: > Hi, > > Did you run ANALYZE? > > Regards, > Thomas > > > > On Tue, Nov 4, 2008 at 12:56 PM, Dhruv Patel <[EMAIL PROTECTED]> wrote: > > > Hi thomas, > > > i am using H2 1.0.70. > > > i have only one table "DATATBL" > > > having 8 columns > > > total "3862753" rows > > > wheni fire this query > > > SELECT DISTINCT(CATEGORY) FROM DATATBL > > > the result was "(146 rows, 327446 ms-- 327 seconds)" on web console > > > my column is having index and type is varchar(20) > > > why does it is so slow??- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "H2 Database" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/h2-database?hl=en -~----------~----~----~----~------~----~------~--~---
