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Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Aggregator transformation
  6. Expression transformation
  7. Filter transformation
  8. Input transformation
  9. Joiner transformation
  10. Lookup transformation
  11. Mapplet transformation
  12. Normalizer transformation
  13. Output transformation
  14. Rank transformation
  15. Router transformation
  16. Sequence transformation
  17. Sorter transformation
  18. SQL transformation
  19. Union transformation

Transformations

Transformations

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Dynamic cache updates

Dynamic cache updates

When the
mapping
 task reads a row, it changes the lookup cache depending on the results of the lookup query and the Lookup transformation properties that you define. The
mapping
 task assigns a value to the NewLookupRow return field that indicates the action it takes.
The following table lists the possible NewLookupRow values:
NewLookupRow Value
Description
0
Mapping
 task does not update or insert the row in the cache.
1
Mapping
 task inserts the row into the cache.
2
Mapping
 task updates the row in the cache.
You can use the NewLookupRow values in downstream transformations.
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