The Data Integration Service can create partitions for a mapping when the mapping contains a DB2 for LUW target that has more database partitions than the parallelism value. If the DB2 for LUW target has more database partitions than the parallelism value, the Data Integration Service uses all of the writer threads defined by the parallelism value. The Data Integration Service distributes multiple database partitions to some of the writer threads.
Previously, if the DB2 for LUW target had more database partitions than the parallelism value, the Data Integration Service did not create partitions for the entire mapping. The Data Integration Service used one thread to process each mapping pipeline stage.