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  1. Preface
  2. Understanding Pipeline Partitioning
  3. Partition Points
  4. Partition Types
  5. Pushdown Optimization
  6. Pushdown Optimization and Transformations
  7. Real-time Processing
  8. Commit Points
  9. Row Error Logging
  10. Workflow Recovery
  11. Stopping and Aborting
  12. Concurrent Workflows
  13. Grid Processing
  14. Load Balancer
  15. Workflow Variables
  16. Parameters and Variables in Sessions
  17. Parameter Files
  18. FastExport
  19. External Loading
  20. FTP
  21. Session Caches
  22. Incremental Aggregation
  23. Session Log Interface
  24. Understanding Buffer Memory
  25. High Precision Data
  26. POWERCENTERHELP

Advanced Workflow Guide

Advanced Workflow Guide

Pushdown Optimization for Pass-Through Partitioning

Pushdown Optimization for Pass-Through Partitioning

When you configure pushdown optimization for a session with pass-through partitioning, the database processes data without redistributing rows among partitions. All rows in a single partition stay in the partition after crossing a pass-through partition point.
You must configure all partition points for pass-through partitioning to push all transformation logic to the database. For example, a session has four partition points. You configure the first three partition points for pass-through partitioning and the last partition point for hash auto-keys partitioning. The Integration Service pushes all transformation logic to the database, except the transformations at and after the last partition point. The Integration Service processes the transformations at and after the last partition point.


Updated July 04, 2018