INDEX ONLY scan with expression index

James Sewell <james.sewell@xxxxxxxxxxxx> · Tue, 8 Mar 2016 16:50:26 +1100

Hello,
Would anyone be able to shed some light on why _expression_ based indexes can't be used for an index only scan?

I've found a few comments saying this is the case, and I've proven it is the case in reality - but I can't seem to find the why.

Cheers,

	James Sewell,
Solutions Architect 

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