Table of Contents

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  1. Preface
  2. Introduction to Data Engineering Streaming
  3. Data Engineering Streaming Administration
  4. Sources in a Streaming Mapping
  5. Targets in a Streaming Mapping
  6. Streaming Mappings
  7. Window Transformation
  8. Appendix A: Connections
  9. Appendix B: Monitoring REST API Reference
  10. Appendix C: Sample Files

Partitioning Configuration

Partitioning Configuration

Configure partitioning by specifying one or more columns under partition keys on the
Windowing
tab.
The following image shows the Windowing tab:
Optionally, configure the partition keys to separate the input rows into different partitions. Configure the partition keys to define partition boundaries, rather than performing the calculation across all inputs. If you do not define partition keys, all the data is included in the same partition. The variable values stored will be global and every row can read and update the same set of variables.
You can specify the partition keys by value or parameter. Select
Value
to use port names.
The following table lists the data type support for variable ports:
Data Type
Initial State Value
String
EMPTY_STRING
Integer
0
Double
0.0
Long
0
Text
EMPTY_STRING
Decimal
0.0