org.apache.calcite.sql.type

Class CursorReturnTypeInference

java.lang.Object

org.apache.calcite.sql.type.CursorReturnTypeInference

All Implemented Interfaces:

SqlReturnTypeInference

public class CursorReturnTypeInference
extends Object
implements SqlReturnTypeInference

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

See Also:

OrdinalReturnTypeInference

Constructor Summary

Constructors

Constructor and Description
CursorReturnTypeInference(int ordinal)

Method Summary

Modifier and Type	Method and Description
@Nullable 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 Detail

CursorReturnTypeInference

public CursorReturnTypeInference(int ordinal)

Method Detail

inferReturnType

public @Nullable 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