* MCOL-5092 Ensure column width is correct for datatype
Change MODA return type to STRING
Modify MODA to handle every numeric type
* MCOL-5162 MODA to support char and varchar with collation support
Fixes to the aggregate bit functions
When we fixed the storage sign issue for MCOL-5092, it uncovered a problem in the bit aggregates (bit_and, bit_or and bit_xor). These aggregates should always return UBIGINT, but they relied on the type of the argument column, which gave bad results.
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