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

Interface ReturnTypeInference

All Known Implementing Classes:

ConcatReturnTypeInference, DecimalReturnTypeInference.DecimalAddReturnTypeInference, DecimalReturnTypeInference.DecimalAggReturnTypeInference, DecimalReturnTypeInference.DecimalCastReturnTypeInference, DecimalReturnTypeInference.DecimalDivScaleReturnTypeInference, DecimalReturnTypeInference.DecimalMaxScaleReturnTypeInference, DecimalReturnTypeInference.DecimalModScaleReturnTypeInference, DecimalReturnTypeInference.DecimalSetScaleReturnTypeInference, DecimalReturnTypeInference.DecimalSumAggReturnTypeInference, DecimalReturnTypeInference.DecimalSumScaleReturnTypeInference, DecimalReturnTypeInference.DecimalZeroScaleReturnTypeInference, DefaultReturnTypeInference, PadReturnTypeInference, SameInOutLengthReturnTypeInference, StringCastReturnTypeInference

public interface ReturnTypeInference

Return type calculation interface for functions that have return type set as with enum FunctionTemplate.ReturnType.

Method Summary

Methods

Modifier and Type	Method and Description
TypeProtos.MajorType	getType(List<LogicalExpression> logicalExpressions, FunctionAttributes attributes)

Method Detail

getType

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