Hi, I had simular problem. H2 does not optimize AND conditions very well. I would recommend using subqueries.
Regards, j On Tue, Feb 23, 2010 at 5:06 PM, kensystem <[email protected]> wrote: > Let me apologize about the formatting, I thought that G Groups would > have retained the HTML-table formatting I coped pasted from the info > schema (it certainly allowed in in the textarea anyway) > CREATE table OM (pk BIGINT primary key auto_increment, b INTEGER) > CREATE INDEX b ON om(b) > > Also I typod '500,00' but meant the table has '500,000' rows. > > Also to be clearer, the 'pk' column is a primary key and so only about > 40 items in the set matched the query; even so adding the second AND- > IN seems to slow it down exponentially as that list grows; its as if > the entire dataset and not subset is searched for each value in each > list. > > -- > 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. > > -- 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.
