On Tue, 11 Mar 2008, Bill Moran wrote:

In response to "Robins Tharakan" <[EMAIL PROTECTED]>:
Sorry, if I am missing something here, but shouldn't something like this
allow us to get a (fast) accurate count ?

SELECT COUNT(*) from table WHERE indexed_field IS NULL
+
SELECT COUNT(*) from table WHERE indexed_field IS NOT NULL

For certain, qualified definitions of "fast", sure.

And certain, qualified definitions of "accurate" as well. Race condition?

Matthew

--
"Television is a medium because it is neither rare nor well done." -- Fred Friendly

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