NOCOMPRESSUPDATES sends all of the columns to the trail. This becomes the default when a table definition does not include a primary key or unique index. NOCOMPRESSUPDATES also is required when using the Conflict Detection and Resolution (CDR) feature for a DB2 database on any of the platforms that are supported by Oracle GoldenGate.
The similar applies to the COMPRESSDELETES.
The supported database are DB2 LUW, DB2 z/OS, Teradata version 12 or later, SQL Server, and Sybase. Note that this doesn't support for MySQL database.