org.apache.drill.exec.planner.physical

Class AggPrelBase.SqlSumCountAggFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlAggFunction

org.apache.drill.exec.planner.physical.AggPrelBase.SqlSumCountAggFunction

All Implemented Interfaces:

org.apache.calcite.plan.Context, org.apache.calcite.schema.Wrapper

Enclosing class:

AggPrelBase

public class AggPrelBase.SqlSumCountAggFunction
extends org.apache.calcite.sql.SqlAggFunction

Specialized aggregate function for SUMing the COUNTs. Since return type of COUNT is non-nullable and return type of SUM is nullable, this class enables creating a SUM whose return type is non-nullable.

Field Summary

Fields inherited from class org.apache.calcite.sql.SqlOperator

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor and Description
SqlSumCountAggFunction(org.apache.calcite.rel.type.RelDataType type)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.type.RelDataType	getType()

Methods inherited from class org.apache.calcite.sql.SqlAggFunction

allowsFilter, allowsNullTreatment, getDistinctOptionality, getParameterTypes, getReturnType, isAggregator, isQuantifierAllowed, requiresGroupOrder, requiresOrder, requiresOver, unwrap, validateCall

Methods inherited from class org.apache.calcite.sql.SqlFunction

deriveType, getFunctionType, getNameAsId, getParamNames, getParamTypes, getSqlIdentifier, getSyntax, unparse, validateQuantifier

Methods inherited from class org.apache.calcite.sql.SqlOperator

acceptCall, acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, checkOperandTypes, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, hashCode, inferReturnType, inferReturnType, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, leftPrec, preValidateCall, requiresDecimalExpansion, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SqlSumCountAggFunction

public SqlSumCountAggFunction(org.apache.calcite.rel.type.RelDataType type)

Method Detail

getType

public org.apache.calcite.rel.type.RelDataType getType()