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The column mapping string is comma-separated list of encoded values whose offset corresponds to the Hive schema for the table. The order of the columns in the Hive schema can be arbitrary as long as the elements in the column mapping align to the intended Hive column. For those familiar with Accumulo, each element in the column mapping string resembles a column_family:column_qualifier; however, there are a few different variants that allow for different control.
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