Table of Contents

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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

Advanced Workflow Guide

Advanced Workflow Guide

Adding a Partition Key

Adding a Partition Key

To specify the partition key for key range partitioning, select the partition point on the Partitions view of the Mapping tab, and click Edit Keys. This displays the Edit Partition Key dialog box. The Available Ports list displays the connected input and input/output ports in the transformation. To specify the partition key, select one or more ports from this list, and then click Add.
The following image shows the Edit Partition Key dialog box with one port selected as the partition key for the target table T_ITEM_PRICES:
The Edit Partition Key dialog box shows one port selected for the target table T_ITEM_PRICES.
To rearrange the order of the ports that define the partition key, select a port in the Selected Ports list and click the up or down arrow.
In key range partitioning, the order of the ports does not affect how the Integration Service redistributes rows among partitions, but it can affect session performance. For example, you might configure the following compound partition key:
Selected Ports
ITEMS.DESCRIPTION
ITEMS.DISCONTINUED_FLAG
Since boolean comparisons are usually faster than string comparisons, the session may run faster if you arrange the ports in the following order:
Selected Ports
ITEMS.DISCONTINUED_FLAG
ITEMS.DESCRIPTION


Updated June 03, 2019