Our application must accept date information in multiple formats. We may
receive xs:dateTime, xs:date, xs:gYearMonth and xs:gYear and even values such
as "Unknown".
We want to be able to create range indexes on the date fields. Naturally a
dateTime index throws a cast exception when there is no time component and we
do not want to artificially modify the incoming data. A string index would
handle the formats correctly. Is there a performance penalty for using a
string index to do range searches on dates formatted as above? What is the
order of magnitude of the penalty if there is one. Thanks.
Bob
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