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

Class OutputWidthCalculators.ConcatOutputWidthCalculator

java.lang.Object

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

All Implemented Interfaces:

OutputWidthCalculator

Enclosing class:

OutputWidthCalculators

public static class OutputWidthCalculators.ConcatOutputWidthCalculator
extends Object
implements OutputWidthCalculator

Field Summary

Fields

Modifier and Type	Field	Description
static final OutputWidthCalculators.ConcatOutputWidthCalculator	INSTANCE

Constructor Summary

Constructors

Constructor	Description
ConcatOutputWidthCalculator()

Method Summary

Modifier and Type	Method	Description
int	getOutputWidth(List<OutputWidthExpression.FixedLenExpr> args)	Defines a function's output size estimate as sum of input sizes If calculated size is greater than Types.MAX_VARCHAR_LENGTH, it is replaced with Types.MAX_VARCHAR_LENGTH.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final OutputWidthCalculators.ConcatOutputWidthCalculator INSTANCE

Constructor Details

ConcatOutputWidthCalculator

public ConcatOutputWidthCalculator()

Method Details

getOutputWidth

public int getOutputWidth(List<OutputWidthExpression.FixedLenExpr> args)

Defines a function's output size estimate as sum of input sizes If calculated size is greater than Types.MAX_VARCHAR_LENGTH, it is replaced with Types.MAX_VARCHAR_LENGTH.

Specified by:

getOutputWidth in interface OutputWidthCalculator

Parameters:

args -

Returns:

return type