Merge Join Element
X-Ref:
- Ast Merge Join Node
- Ast Transformation Node
- Ast Scope Boundary Node
Attributes
| Attribute | API Type | Default | Description |
|---|---|---|---|
| JoinType | MergeJoinTransformJoinType | InnerJoin | This value specifies what type of join to perform. This is a required property |
| Name | String | Specifies the name of the object. This name can be used to reference this object from anywhere else in the program. This is a required property | |
| LocaleId | Language | Inherited | This value specifies which locale is used by the dataflow task. |
| MaxBuffersPerInput | Int32 | 5 | This value specifies the greatest number of buffers allowed per input before blocking occurs. |
| TreatNullsAsEqual | Boolean | True | This value indicates whether null values are treated as equal values. |
| ValidateExternalMetadata | Boolean | true | This value specifies whether the data flow transformation is validated against columns that originated in external data sources. When server assets such as tables and stored procedures are created during processing, ValidateExternalMetadata is normally set to False, which prevents validation from completing at compile time. |
Singleton Children
| Child | API Type | Description |
|---|---|---|
| <ErrorHandling /> | AstComponentErrorHandlingNode | Specifies the error handling defaults to apply to an entire component |
| <LeftInputPath /> | AstDataflowMappedInputPathNode | AstDataflowMappedInputPathNode is used to model input paths in a SQL Server Integration Services dataflow task. Connections are made by referencing an appropriate output path. This type additionally permits the mapping of a column on an incoming row to a new column on the outgoing row. |
| <RightInputPath /> | AstDataflowMappedInputPathNode | AstDataflowMappedInputPathNode is used to model input paths in a SQL Server Integration Services dataflow task. Connections are made by referencing an appropriate output path. This type additionally permits the mapping of a column on an incoming row to a new column on the outgoing row. |
Collection Children
| Child | API Type | Description |
|---|---|---|
| <JoinKeys> <JoinKey /> </JoinKeys> | AstMergeJoinKeyNode | This is a collection of key definitions that are used to determine which columns to match between the left and right inputs to determine a join match. This is a required property |
| <Annotations> <Annotation /> </Annotations> | AstAnnotationNode | This is a collection of annotation items that can be used to specify documentation, tags, or other information. Annotations are particularly useful for storing information about nodes that can be used by BimlScript code. |
| <DataflowOverrides> Multiple Choices... </DataflowOverrides> | AstDataflowOverrideNode | Provides a collection of objects to override properties of the component, its input paths, its output paths, and its consituent dataflow columns. |