>>>>Is it possible to create an index tag on a field that would enforce unique entry in the field, unless the entry is blank (no entry)?
>>>
>>>INDEX ON MyField FOR NOT ISBLANK(MyField) TAG tttt CANDIDATE
>>>
>>>BUT such indexes can't be used in optimization.
>>
>>Thank you, Borislav.
>>
>>Are you saying that such an index will be ignored in SELECT SQL (for Rushmore)?
>
>Yes.
Thank you for your reply.
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