Re: Bit-Mapped Indexing Routines---Beta Testers Wanted

ZOD wrote: > > I thought it was "bitWISE" indexing not "bitmapped" indexing. Please > correct me on this. > > Bill Gfroehrer... Bitmap indexes are the generic term for the technology. Sybase usues the term "bitwise" indexing to differentiate the high-cardinality bitmap index technology in its Sybase IQ data warehousing product from the more common low-cardinality bitmapping indexes available in other products. (See www.sybase.com et al...) Incidentally, I wonder what the original poster meant by bitmap indexes being "relatively new" in databases. Low cardinality bitmap indexes were in Model 204 well over 20 years ago, so maybe he/she meant relative to punch-card databases ? DEW ---------------------------------------------------------------------- David E. Walrath walrath@sybase.com Sybase IQ 77 S. Bedford St, Burlington, MA 01803 Opinions are my own; my employer doesn't want them.