Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Access Policy transformation
  6. Aggregator transformation
  7. B2B transformation
  8. Chunking transformation
  9. Cleanse transformation
  10. Data Masking transformation
  11. Data Services transformation
  12. Deduplicate transformation
  13. Expression transformation
  14. Filter transformation
  15. Hierarchy Builder transformation
  16. Hierarchy Parser transformation
  17. Hierarchy Processor transformation
  18. Input transformation
  19. Java transformation
  20. Java transformation API reference
  21. Joiner transformation
  22. Labeler transformation
  23. Lookup transformation
  24. Machine Learning transformation
  25. Mapplet transformation
  26. Normalizer transformation
  27. Output transformation
  28. Parse transformation
  29. Python transformation
  30. Rank transformation
  31. Router transformation
  32. Rule Specification transformation
  33. Sequence transformation
  34. Sorter transformation
  35. SQL transformation
  36. Structure Parser transformation
  37. Transaction Control transformation
  38. Union transformation
  39. Vector Embedding transformation
  40. Velocity transformation
  41. Verifier transformation
  42. Web Services transformation

Transformations

Transformations

Data source conflicts

Data source conflicts

If you convert hierarchical data to hierarchical data and you add multi-level arrays to the output, you must ensure that the data sources for the output group or fields do not conflict. A conflict occurs when you select both an incoming array and one of its descendant arrays to be data sources for the same output group or field.
If you have a data source conflict, the transformation remains invalid until you resolve the conflict. Additionally, you cannot configure joins, filters, order by fields, or group by fields until you resolve the conflict.

Example of a data source conflict

A data source conflict occurs if you select both Array1 and Array2 as data sources for the output group in the following image:
The image shows the Hierarchy Processor tab of the Hierarchy Processor transformation. The Incoming Fields panel contains one input group with the following field: Array1 (array). Array1 contains the following fields: Field1 (string), Field2 (string), and Array2 (array). Array2 contains the following fields: Field3 (string) and Field4 (string). The Output Fields panel contains one output group with the same fields as the input group.
The conflict occurs because there is no way to determine which data source provides the data for Field1 and Field2. In this case, the Hierarchy Processor transformation displays a conflicting data sources error.
To resolve the conflict, remove one of the data sources from the Output group.

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