Hannu Krosing <[EMAIL PROTECTED]> writes:
> How hard would it be to _not_ include nulls in indexes 
> as they are not used anyway. 

Seems to me that would be a step backwards.

What should someday happen is to make IS NULL an indexable operator.
The fact that we haven't got around to doing so is not a reason to
rip out the underpinnings for it.

                        regards, tom lane

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