RE: bitmap indices

2002-04-29 Thread Ganesh Raja
Hope you are using the CBO and not the RBO. If yu use a Bitmap Index then the Optimizer will use a CBO and if the stats are not proper then u may not get a Proper Result. HTH Best Regards, Ganesh R Tel : +971 (4) 397 3337 Ext 420 Fax : +971 (4) 397 6262 HP : +971 (50) 745 6019

Re: bitmap indices

2002-04-29 Thread Connor McDonald
Generate an access path plan for each as well as checking some tkprof output and you'll see why this is the case. hth connor --- Daniel Wisser [EMAIL PROTECTED] wrote: hi! to speed up queries i have created a bitmap index on a column that contains 2 chars as a maximum. to my surprise