Having a tea, talking about SQL - Bitmap Filtershttp://sqlserver.ro/blogs/cristians_blog/archive/2007/11/13/having-a-tea-talking-about-sql-bitmap-filters.aspxJunior DBA talking to Senior DBA about Bitmap Filters and Bitmap Indexes: Resources: Intro to Query Execution Bitmap Filters http://en.wikipedia.org/wiki/Bitmap_index http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1933280&SiteID=1enCommunityServer 2.1 SP2 (Build: 61129.1)