| http://www.w3.org/ns/prov#value | - The effect of putting such a date column in the middle of an index is to distribute values of the following columns across the different dates within the index.What this means is that if you have an index on 3 columns - A, D, Z say - where D is a date and A and Z are not (either numeric or a character string) and you execute a query constraining on all 3 columns but with a range constraint on D, t
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