Difference between NUSI and Hash ordered NUSI? - response (3) by Raja_KT

Hi Nishant,

I have never encountered that situation in real time. However,my findings are highlighted below:

USIs are always stored in hash order on an AMP, while NUSIs can be stored either in hash order or in value order on an AMP.

hash-ordered NUSI goes well with = on the secondary index column.VOSIs for processing range conditions (like between ...) and  conditions with either an equality or inequality on the secondary index column

If a value-ordered index is defined on the column that

satisfies a range predicate from this list, then a full-table scan is not necessary to satisfy the

condition and the Optimizer merely scans a subset of the value-ordered index subtable instead.

I think you want an index to be used instead of full table scan.

So my suggestion is to test your cases  and run the explain.

Cheers,

Raja