From SQOOP-2018, Qian Xu found a good issue we have where we use BIT SIZE instead of BYTE size. we have to fix this.
also see https://issues.apache.org/jira/browse/SQOOP-2023 to get more context
GenericJDBCConnector SqlTypes INTEGER should be set 4 bytes
Sqoop2: SqoopIDFUtils handling of decimal need to be fixed