# LogicalTableSource


Information about the source of a logical table. This is a variant type structure. For this structure to be valid, only one of the attributes can be non-null.

## Contents


**Note**  
In the following list, the required parameters are described first.

 ** DataSetArn **   <a name="QS-Type-LogicalTableSource-DataSetArn"></a>
The Amazon Resource Number (ARN) of the parent dataset.  
Type: String  
Required: No

 ** JoinInstruction **   <a name="QS-Type-LogicalTableSource-JoinInstruction"></a>
Specifies the result of a join of two logical tables.  
Type: [JoinInstruction](API_JoinInstruction.md) object  
Required: No

 ** PhysicalTableId **   <a name="QS-Type-LogicalTableSource-PhysicalTableId"></a>
Physical table ID.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Pattern: `[0-9a-zA-Z-]*`   
Required: No

## See Also


For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/quicksight-2018-04-01/LogicalTableSource) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/quicksight-2018-04-01/LogicalTableSource) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/quicksight-2018-04-01/LogicalTableSource)