For the MULTI-INDEX-OR optimization, when pushing down WHERE clause terms from

For the MULTI-INDEX-OR optimization, when pushing down WHERE clause terms from
the main query into the various OR-term subqueries, do not push down slices
of a vector comparison, since the right-hand operand of the comparison might
have only been initialized in a different OR branch that was not taken.
dbsqlfuzz 80a9fade844b4fb43564efc972bcb2c68270f5d1.

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