Package org.apache.calcite.sql.type

Class OrdinalReturnTypeInference

java.lang.Object

org.apache.calcite.sql.type.OrdinalReturnTypeInference

All Implemented Interfaces:

SqlReturnTypeInference

public class OrdinalReturnTypeInference
extends Object
implements SqlReturnTypeInference

Returns the type of the operand at a particular 0-based ordinal position.

Constructor Summary

Constructors

Constructor	Description
OrdinalReturnTypeInference(int ordinal)

Method Summary

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

Methods inherited from interface org.apache.calcite.sql.type.SqlReturnTypeInference

andThen, orElse

Constructor Details

OrdinalReturnTypeInference

public OrdinalReturnTypeInference(int ordinal)

Method Details

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