CursorReturnTypeInference (Apache Calcite API)

java.lang.Object
- org.apache.calcite.sql.type.CursorReturnTypeInference

All Implemented Interfaces:

SqlReturnTypeInference
```
public class CursorReturnTypeInference
extends java.lang.Object
implements SqlReturnTypeInference
```
Returns the rowtype of a cursor of the operand at a particular 0-based ordinal position.

See Also:

OrdinalReturnTypeInference

Field Summary

Fields
Modifier and Type Field Description

private int ordinal

Constructor Summary

Constructors
Constructor Description

CursorReturnTypeInference(int ordinal)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`RelDataType`	`inferReturnType(SqlOperatorBinding opBinding)`	Infers the return type of a call to an `SqlOperator`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ordinal
```
private final int ordinal
```
- Constructor Detail
  - CursorReturnTypeInference
```
public CursorReturnTypeInference(int ordinal)
```
- Method Detail
  - inferReturnType
```
public RelDataType inferReturnType(SqlOperatorBinding opBinding)
```
    Description copied from interface: SqlReturnTypeInference
    
    Infers the return type of a call to an SqlOperator.
    
    Specified by:
    
    inferReturnType in interface SqlReturnTypeInference
    
    Parameters:
    
    opBinding - description of operator binding
    
    Returns:
    
    inferred type; may be null