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 Are indexes ignored COALESCE is used in filter cri
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Starting Member

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Posted - 01/19/2009 :  06:21:06  Show Profile  Reply with Quote
Hi all,
Are indexes ignored when COALESCE is used in the WHERE clause criteria or INNER JOIN criteria?

Thanks for your time.

Patron Saint of Lost Yaks

30407 Posts

Posted - 01/19/2009 :  06:23:22  Show Profile  Visit SwePeso's Homepage  Reply with Quote
Most probably.

Use something like

WHERE (Col1 IS NULL OR Col1 = 'abc')

I am not sure which execution plan you will get instead.
It depends on many factors.

E 12°55'05.63"
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