org.apache.flink.table.planner.functions.bridging

Class BridgingSqlAggFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlAggFunction

org.apache.flink.table.planner.functions.bridging.BridgingSqlAggFunction

All Implemented Interfaces:

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

@Internal
public final class BridgingSqlAggFunction
extends org.apache.calcite.sql.SqlAggFunction

Bridges FunctionDefinition to Calcite's representation of an aggregating function (either a system or user-defined function).

Field Summary

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

kind, MDX_PRECEDENCE, NL

Method Summary

Modifier and Type	Method and Description
org.apache.flink.table.catalog.DataTypeFactory	getDataTypeFactory()
org.apache.flink.table.functions.FunctionDefinition	getDefinition()
Optional<org.apache.flink.table.functions.FunctionIdentifier>	getIdentifier()
List<String>	getParamNames()
List<org.apache.calcite.rel.type.RelDataType>	getParamTypes()
org.apache.flink.table.planner.calcite.FlinkTypeFactory	getTypeFactory()
org.apache.flink.table.types.inference.TypeInference	getTypeInference()
boolean	isDeterministic()
static BridgingSqlAggFunction	of(org.apache.flink.table.catalog.DataTypeFactory dataTypeFactory, org.apache.flink.table.planner.calcite.FlinkTypeFactory typeFactory, org.apache.calcite.sql.SqlKind kind, org.apache.flink.table.functions.FunctionIdentifier identifier, org.apache.flink.table.functions.FunctionDefinition definition, org.apache.flink.table.types.inference.TypeInference typeInference) Creates an instance of a aggregating function (either a system or user-defined function).

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, 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, getStrongPolicyInference, hashCode, inferReturnType, inferReturnType, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, 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

Method Detail

of

public static BridgingSqlAggFunction of(org.apache.flink.table.catalog.DataTypeFactory dataTypeFactory,
                                        org.apache.flink.table.planner.calcite.FlinkTypeFactory typeFactory,
                                        org.apache.calcite.sql.SqlKind kind,
                                        org.apache.flink.table.functions.FunctionIdentifier identifier,
                                        org.apache.flink.table.functions.FunctionDefinition definition,
                                        org.apache.flink.table.types.inference.TypeInference typeInference)

Creates an instance of a aggregating function (either a system or user-defined function).

Parameters:

dataTypeFactory - used for creating DataType

typeFactory - used for bridging to RelDataType

kind - commonly used SQL standard function; use SqlKind.OTHER_FUNCTION if this function cannot be mapped to a common function kind.

identifier - catalog identifier

definition - system or user-defined FunctionDefinition

typeInference - type inference logic

getDataTypeFactory

public org.apache.flink.table.catalog.DataTypeFactory getDataTypeFactory()

getTypeFactory

public org.apache.flink.table.planner.calcite.FlinkTypeFactory getTypeFactory()

getIdentifier

public Optional<org.apache.flink.table.functions.FunctionIdentifier> getIdentifier()

getDefinition

public org.apache.flink.table.functions.FunctionDefinition getDefinition()

getTypeInference

public org.apache.flink.table.types.inference.TypeInference getTypeInference()

getParamTypes

public List<org.apache.calcite.rel.type.RelDataType> getParamTypes()

Overrides:

getParamTypes in class org.apache.calcite.sql.SqlFunction

getParamNames

public List<String> getParamNames()

Overrides:

getParamNames in class org.apache.calcite.sql.SqlFunction

isDeterministic

public boolean isDeterministic()

Overrides:

isDeterministic in class org.apache.calcite.sql.SqlOperator