> > Is an index on a nullable column useful for retrieving rows having that
> > column null?
>
> Nope, because IS NULL isn't an indexable operator.
>
> You can make an end-run around that with a partial index, eg
>
> create index fooi on foo(f1) where f1 is null
>
> This can be used to sa
"Daniel Caune" <[EMAIL PROTECTED]> writes:
> Is an index on a nullable column useful for retrieving rows having that
> column null?
Nope, because IS NULL isn't an indexable operator.
You can make an end-run around that with a partial index, eg
create index fooi on foo(f1) where f1 is nul
Hi,
Is an index on a nullable column useful for retrieving rows having that
column null?
SELECT PlayerID
FROM PlayerLoginSession
WHERE EndTime IS NULL;
Regards,
--
Daniel CAUNE
Ubisoft Online Technology
(514) 4090 2040 ext. 5418
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