RexToSqlNodeConverter (Apache Calcite API)

All Known Implementing Classes:

RexToSqlNodeConverterImpl
```
public interface RexToSqlNodeConverter
```
Converts expressions from RexNode to SqlNode.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`SqlNode`	`convertCall(RexCall call)`	Converts a `RexCall` to a `SqlNode` expression.
`SqlNode`	`convertInputRef(RexInputRef ref)`	Converts a `RexInputRef` to a `SqlIdentifier`.
`SqlNode`	`convertLiteral(RexLiteral literal)`	Converts a `RexLiteral` to a `SqlLiteral`.
`SqlNode`	`convertNode(RexNode node)`	Converts a `RexNode` to a `SqlNode` expression, typically by dispatching to one of the other interface methods.

- Method Detail
  - convertNode
```
SqlNode convertNode(RexNode node)
```
    Converts a RexNode to a SqlNode expression, typically by dispatching to one of the other interface methods.
    
    Parameters:
    
    node - RexNode to translate
    
    Returns:
    
    SqlNode, or null if no translation was available
  - convertCall
```
SqlNode convertCall(RexCall call)
```
    Converts a RexCall to a SqlNode expression.
    
    Parameters:
    
    call - RexCall to translate
    
    Returns:
    
    SqlNode, or null if no translation was available
  - convertLiteral
```
SqlNode convertLiteral(RexLiteral literal)
```
    Converts a RexLiteral to a SqlLiteral.
    
    Parameters:
    
    literal - RexLiteral to translate
    
    Returns:
    
    SqlNode, or null if no translation was available
  - convertInputRef
```
SqlNode convertInputRef(RexInputRef ref)
```
    Converts a RexInputRef to a SqlIdentifier.
    
    Parameters:
    
    ref - RexInputRef to translate
    
    Returns:
    
    SqlNode, or null if no translation was available