== Why is this an issue?

If an index exists on multiple columns, there is no need to create additional indexes on the individual columns or on sub-sets of the individual columns. Doing so is simply a drag on performance because the super-set index fully satisfies the need.

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

This index [duplicates|is a subset of] 'XXX' and should be removed


endif::env-github,rspecator-view[]
