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

Components of the Aggregator Transformation

Components of the Aggregator Transformation

The Aggregator is an active transformation that changes the number of rows in the pipeline. The Aggregator transformation has the following components and options:
  • Aggregate cache.
    The Integration Service stores data in the aggregate cache until it completes aggregate calculations. The Integration Service stores group values in an index cache and it stores row data in the data cache.
  • Aggregate expression.
    Enter an expression in an output port. The expression can include nonaggregate expressions and conditional clauses.
  • Group by port.
    Indicate how to create groups. You can configure an input, input/output, output, or variable port for the group. When grouping data, the Aggregator transformation outputs the last row of each group unless otherwise specified.
  • Sorted input.
    Select this option to improve session performance. To use sorted input, you must pass data to the Aggregator transformation sorted by group by port, in ascending or descending order.
You can configure the Aggregator transformation components and options on the Properties and Ports tab.

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