On Fri, 8 Oct 2004, Yann Michel wrote:
Hi,
On Fri, Oct 08, 2004 at 10:09:18AM +0100, Dave Page wrote:I think what Reini was asking was why do you think you need bitmap indexes as opposed to any existing type?
due to I'm developing a datawarehousing application we have lots of fact-data in our central fact-table. As I know how to improve performance on Oracle based datawarehouses, I'm used to add bitmap indexes for atributes having only a few distinct values. So I was looking for any comparable indexing technology but didn't find any so far.
Yann, you may try our contrib/intarray module
Regards, Yann
---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: [EMAIL PROTECTED], http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83
---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings