Table of Contents

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  1. Preface
  2. Working with Transformations
  3. Aggregator Transformation
  4. Custom Transformation
  5. Custom Transformation Functions
  6. Data Masking Transformation
  7. Data Masking Examples
  8. Expression Transformation
  9. External Procedure Transformation
  10. Filter Transformation
  11. HTTP Transformation
  12. Identity Resolution Transformation
  13. Java Transformation
  14. Java Transformation API Reference
  15. Java Expressions
  16. Java Transformation Example
  17. Joiner Transformation
  18. Lookup Transformation
  19. Lookup Caches
  20. Dynamic Lookup Cache
  21. Normalizer Transformation
  22. Rank Transformation
  23. Router Transformation
  24. Sequence Generator Transformation
  25. Sorter Transformation
  26. Source Qualifier Transformation
  27. SQL Transformation
  28. Using the SQL Transformation in a Mapping
  29. Stored Procedure Transformation
  30. Transaction Control Transformation
  31. Union Transformation
  32. Unstructured Data Transformation
  33. Update Strategy Transformation
  34. XML Transformations

Transformation Guide

Transformation Guide

Troubleshooting Aggregator Transformations

Troubleshooting Aggregator Transformations

I selected sorted input but the workflow takes the same amount of time as before.
You cannot use sorted input if any of the following conditions are true:
  • The aggregate expression contains nested aggregate functions.
  • The session uses incremental aggregation.
  • Source data is data driven.
When any of these conditions are true, the Integration Service processes the transformation as if you do not use sorted input.
A session using an Aggregator transformation causes slow performance.
The Integration Service may be paging to disk during the workflow. You can increase session performance by increasing the index and data cache sizes in the transformation properties.
I entered an override cache directory in the Aggregator transformation, but the Integration Service saves the session incremental aggregation files somewhere else.
You can override the transformation cache directory on a session level. The Integration Service notes the cache directory in the session log. You can also check the session properties for an override cache directory.

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