Using the Relation Map Operator Property Editor
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The Relation Map operator performs a select on two or more incoming relations, equivalent to a SQL join view of a minimum of one relation and additional tables and relations.
The Relation Map operator can take multiple inputs. You can use a Relation Map to join input from other operator sources, for example, two or more Tuple Based windows, or two or more Partitioned Windows.
To create a Relation Map Operator:
- Drag a Relation Map operator from the Palette to the Design view.
- Connect at least two inputs.
- Click the Relation Map operator. The property editor opens.
- Click the Relation Map operator icon.
- In the Expression box, enter the expression for the SQL Select statement. Add attribute names, data types and sizes, as applicable. Add, delete, or move Attributes.
- In the From field, define the input on which to perform the selection.
- In the Where clause field, provide additional search criteria.
- Click OK.
See Also
Using the Stream Projection and Filter Operator Editor
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