 
| Name | Description | Type | Package | Framework | 
| Interpreter | Contains the context for interpreting relational expressions. | Class | org.apache.calcite.interpreter | Calcite | 
| Interpreter .Compiler | Walks over a tree of RelNode and, for each, creates a Node that can be | Class | org.apache.calcite.interpreter.Interpreter | Calcite | 
| Interpreters | Utilities relating to Interpreter and InterpretableConvention. | Class | org.apache.calcite.interpreter | Calcite |