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

Ignore fields in comparison

Ignore fields in comparison

When you use a dynamic lookup cache, you can configure fields to be ignored when
Data Integration
compares the values in the lookup fields with the values in the associated incoming fields. Ignoring some fields in the comparison can improve mapping performance.
When you run a mapping that uses a dynamic lookup cache, by default,
Data Integration
compares the values in all lookup fields with the values in the associated incoming fields.
Data Integration
compares the values to determine whether to update the row in the lookup cache. When a value in an incoming field differs from the value in the lookup field,
Data Integration
updates the row in the cache.
If you do not want to compare all fields, you can choose the fields that you want
Data Integration
to ignore when it compares fields. For example, the source data includes a column that indicates whether the row contains data that you need to update. Enable the
Ignore in Comparison
property for all lookup fields except the field that indicates whether to update the row in the cache and target table.
Configure the fields to be ignored on the
Return Fields
tab of the Lookup transformation. To ignore a field, enable the
Ignore in Comparison
property for the field.
You must configure the transformation to compare at least one field unless the lookup condition contains all the lookup fields.

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