Code showing the attributes for describe_column_set.
typedef enum a_v4_extfn_describe_col_type { EXTFNAPIV4_DESCRIBE_COL_NAME, EXTFNAPIV4_DESCRIBE_COL_TYPE, EXTFNAPIV4_DESCRIBE_COL_WIDTH, EXTFNAPIV4_DESCRIBE_COL_SCALE, EXTFNAPIV4_DESCRIBE_COL_CAN_BE_NULL, EXTFNAPIV4_DESCRIBE_COL_DISTINCT_VALUES, EXTFNAPIV4_DESCRIBE_COL_IS_UNIQUE, EXTFNAPIV4_DESCRIBE_COL_IS_CONSTANT, EXTFNAPIV4_DESCRIBE_COL_CONSTANT_VALUE, EXTFNAPIV4_DESCRIBE_COL_IS_USED_BY_CONSUMER, EXTFNAPIV4_DESCRIBE_COL_MINIMUM_VALUE, EXTFNAPIV4_DESCRIBE_COL_MAXIMUM_VALUE, EXTFNAPIV4_DESCRIBE_COL_VALUES_SUBSET_OF_INPUT, } a_v4_extfn_describe_col_type;