Using Projection Nodes

Objectives
After completing this lesson, you will be able to:

After completing this lesson, you will be able to:

  • Use a projection node

Projection Node

Using a Projection Node

A Projection node is typically used in the following scenarios:

  • To filter measures based on attributes values.

  • To extract only some columns from a data source.

  • To define calculated columns, in particular when the calculation must occur BEFORE an aggregation.

    Indeed, calculated columns in the Aggregation nodes of calculation views are always executed AFTER the aggregation.

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