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  • Common Content for Data Engineering 10.2.2
  • 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. Import From PowerCenter
  13. Performance Tuning
  14. Pushdown Optimization
  15. Partitioned Mappings
  16. Developer Tool Naming Conventions

Developer Mapping Guide

Developer Mapping Guide

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Pushdown Optimization Expressions

Pushdown Optimization Expressions

The Data Integration Service can push transformation logic to the source database when the transformation contains operators and functions that the source supports. The Data Integration Service translates the transformation expression into a query by determining equivalent operators and functions in the database. If there is no equivalent operator or function, the Data Integration Service processes the transformation logic.
If the source uses an ODBC connection and you configure a database-specific ODBC provider in the ODBC connection object, then the Data Integration Service considers the source to be the native source type.
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