org.apache.flink.table.planner.delegation.hive.copy

Class HiveParserSqlCountAggFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlAggFunction

org.apache.flink.table.planner.delegation.hive.copy.HiveParserSqlCountAggFunction

All Implemented Interfaces:

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

public class HiveParserSqlCountAggFunction
extends org.apache.calcite.sql.SqlAggFunction
implements HiveParserSqlFunctionConverter.CanAggregateDistinct

Counterpart of hive's org.apache.hadoop.hive.ql.optimizer.calcite.functions.HiveSqlCountAggFunction.

Field Summary

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor and Description
HiveParserSqlCountAggFunction(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, allowsNullTreatment, getDistinctOptionality, getParameterTypes, getReturnType, getRollup, isAggregator, isPercentile, isQuantifierAllowed, requiresGroupOrder, 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, createCall, createCall, createCall, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, getStrongPolicyInference, hashCode, inferReturnType, inferReturnType, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, not, preValidateCall, requiresDecimalExpansion, reverse, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.schema.Wrapper

maybeUnwrap, unwrapOrThrow

Constructor Detail

HiveParserSqlCountAggFunction

public HiveParserSqlCountAggFunction(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 HiveParserSqlFunctionConverter.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