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English
  • Common Content for Data Engineering 10.5.4
  • All Products

Table of Contents

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  1. Preface
  2. Mappings
  3. Mapplets
  4. Mapping Parameters
  5. Where to Assign Parameters
  6. Mapping Outputs
  7. Generate a Mapping from an SQL Query
  8. Dynamic Mappings
  9. How to Develop and Run a Dynamic Mapping
  10. Dynamic Mapping Use Cases
  11. Mapping Administration
  12. Export to PowerCenter
  13. Import From PowerCenter
  14. Performance Tuning
  15. Pushdown Optimization
  16. Partitioned Mappings
  17. Developer Tool Naming Conventions

Developer Mapping Guide

Developer Mapping Guide

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Pushdown Types

Pushdown Types

The Data Integration Service applies pushdown optimization to a mapping when you select the pushdown type in the mapping run-time properties.
You can select the following pushdown types:
  • None. Select no pushdown type for the mapping.
  • Source. The Data Integration Service tries to push down as much transformation logic as it can to the source database.
  • Full. The Data Integration Service pushes the full transformation logic to the source database.
You can also create a string parameter for the pushdown type and use the following parameter values:
  • Full
  • Source
  • None
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