Partitioning

The following environment variables are concerned with how InfoSphere® DataStage® automatically partitions data.

APT_NO_PART_INSERTION
Set the APT_NO_PART_INSERTION environment variable to prevent InfoSphere DataStage automatically inserting partition components in your application to optimize the performance of the stages in your job.
APT_NO_PARTSORT_OPTIMIZATION
Set this environment variable to disable optimizations that were introduced in IBM® InfoSphere Information Server, Version 8.7.
APT_PARTITION_COUNT
InfoSphere DataStage sets this environment variable to the number of partitions of a stage. This environment variable is read only.
APT_PARTITION_NUMBER
On each partition, InfoSphere DataStage sets the APT_PARTITION_NUMBER environment variable to the index number (0, 1, ...) of this partition within the stage. This environment variable is read only.

Parent topic: Environment Variables