On 5/15/07, Jason Pinnix <[EMAIL PROTECTED]> wrote:
Does the bitmap
index not store a bit vector for the NULL value (i.e. a bit vector that
contains a 1 for each row with a NULL value and 0 for other rows) ?

You should be able to do this with a conditional index:

 create index ... (col) where col is null;

Alexander.

---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
      subscribe-nomail command to [EMAIL PROTECTED] so that your
      message can get through to the mailing list cleanly

Reply via email to