org.apache.drill.exec.expr.fn.output

Class DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference

java.lang.Object

org.apache.drill.exec.expr.fn.output.DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference

All Implemented Interfaces:

ReturnTypeInference

Enclosing class:

DecimalReturnTypeInference

public static class DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference
extends Object
implements ReturnTypeInference

Return type calculation implementation for functions with return type set as FunctionTemplate.ReturnType.DECIMAL_ZERO_SCALE.

Field Summary

Fields

Modifier and Type	Field and Description
static DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference	INSTANCE

Constructor Summary

Constructors

Constructor and Description
DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference()

Method Summary

Methods

Modifier and Type	Method and Description
TypeProtos.MajorType	getType(List<LogicalExpression> logicalExpressions, FunctionAttributes attributes) Return type is used for functions where we need to remove the scale part.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference INSTANCE

Constructor Detail

DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference

public DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference()

Method Detail

getType

public TypeProtos.MajorType getType(List<LogicalExpression> logicalExpressions,
                           FunctionAttributes attributes)

Return type is used for functions where we need to remove the scale part. For example, truncate and round functions.

Specified by:

getType in interface ReturnTypeInference

Parameters:

logicalExpressions - logical expressions

attributes - function attributes

Returns:

return type