Table of Contents

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

Transformations

Transformations

Data type conversion

Data type conversion

A Python transformation converts transformation data types to Python data types based on the Python transformation field type.
When a Python transformation reads input rows, it converts incoming field data types to Python data types. When a Python transformation writes output rows, it converts Python data types to output field data types.
For example, the following processing occurs for an input field with the double data type:
  1. The Python transformation converts the double data type in the incoming field to the Python float data type.
  2. The Python transformation uses the value in the incoming field as the value for the Python float data type.
  3. When the transformation generates the output row, it converts the Python float data type to the double data type.
The following table shows how the Python transformation maps transformation data types to Python data types:
Transformation data type
Python data type
Integer
Int
Decimal
Float
Double
Float
Timestamp
Datetime
String
Str
text
Text