Hello
all.
I am having a couple
of tables with couple of hundre millions records in them. The tables
contains a timestamp column.
I am almost always
interested in getting datas from a specific day or month. Each day contains
aprox. 400.000 entries.
When I do such
queries as " select ... from archive where m_date between '2005-01-01' and
'2005-02-01' group by ... " and so on.
It takes very long.
I am having
indexes that kicks in, but still it takes sometime.
I have splitted the
archive table in smaller monthly tables, it then goes a lot faster, but not fast
enough.
I know simular
systems that uses Oracle and gains a lot on performance because of the
partioning. That kind of anoyes me a bit :)
Does anyone of you
have some good ideas on how speed up such queries on huge
tables?
regards
rune
