org.apache.hadoop.hive.ql.optimizer.calcite.functions

Class HiveSqlSumAggFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlAggFunction

org.apache.hadoop.hive.ql.optimizer.calcite.functions.HiveSqlSumAggFunction

All Implemented Interfaces:

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

public class HiveSqlSumAggFunction
extends org.apache.calcite.sql.SqlAggFunction
implements CanAggregateDistinct

Sum is an aggregator which returns the sum of the values which go into it. It has precisely one argument of numeric type (int, long, float, double), and the result is the same type.

Field Summary

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor and Description
HiveSqlSumAggFunction(boolean isDistinct, org.apache.calcite.sql.type.SqlReturnTypeInference returnTypeInference, org.apache.calcite.sql.type.SqlOperandTypeInference operandTypeInference, org.apache.calcite.sql.type.SqlOperandTypeChecker operandTypeChecker)

Method Summary

Modifier and Type	Method and Description
boolean	isDistinct()
<T> T	unwrap(Class<T> clazz)

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

allowsFilter, getParameterTypes, getReturnType, isAggregator, isQuantifierAllowed, requiresOrder, requiresOver, 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

HiveSqlSumAggFunction

public HiveSqlSumAggFunction(boolean isDistinct,
                             org.apache.calcite.sql.type.SqlReturnTypeInference returnTypeInference,
                             org.apache.calcite.sql.type.SqlOperandTypeInference operandTypeInference,
                             org.apache.calcite.sql.type.SqlOperandTypeChecker operandTypeChecker)

Method Detail

isDistinct

public boolean isDistinct()

Specified by:

isDistinct in interface CanAggregateDistinct

unwrap

public <T> T unwrap(Class<T> clazz)

Specified by:

unwrap in interface org.apache.calcite.schema.Wrapper

Overrides:

unwrap in class org.apache.calcite.sql.SqlAggFunction