| Interface | Description | 
|---|---|
| DataSourcesProvider | |
| IOutputSerializer | |
| ISqlStreamsDataSource | 
 An ISqlStreamsDataSource specifies how an external data source produces and consumes data. 
 | 
| Class | Description | 
|---|---|
| DataSourcesRegistry | |
| FieldInfo | 
 Describe each column of the field. 
 | 
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