Thanks Noel.
On Thursday, 8 August 2013 13:44:02 UTC+2, Noel Grandin wrote: > > Thanks, fix committed. > > The problem as actually not to do with memory tables, it had to do with > different cardinal types in the underlying table vs the query column. > In this case, the underlying column was a LONG, but the query key was an > INT, which led to incorrect results. > > On 2013-08-08 12:36, Steve McLeod wrote: > > Hi Thomas and all, > > Below is a reproducible test case showing that hash index doesn't > reliably work. This problem exists in H2 1.3.173. > > Let me know if you need further information. > > Regards, > > Steve > > -- reproducible test case that demonstrates that hash indexes are broken > with memory tables > > -- create test table > drop table if exists hash_index_test; > create memory table hash_index_test as select x as id, x%10 as data from ( > SELECT * FROM SYSTEM_RANGE(1, 100) > ); > > -- create default index and query > -- this returns 10 as expected > create index idx1 on hash_index_test(data); > select count(*) from hash_index_test where data = 1; > > -- create hash index and query > -- this should return 10 but returns 0 > drop index idx1; > create hash index idx2 on hash_index_test(data); > select count(*) from hash_index_test where data = 1; > > > -- > You received this message because you are subscribed to the Google Groups > "H2 Database" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To post to this group, send email to [email protected]<javascript:> > . > Visit this group at http://groups.google.com/group/h2-database. > For more options, visit https://groups.google.com/groups/opt_out. > > > > > -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/h2-database. For more options, visit https://groups.google.com/groups/opt_out.
