org.apache.flink.table.planner.functions.sql

Class MatchRowTimeFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.flink.table.planner.functions.sql.BuiltInSqlFunction

org.apache.flink.table.planner.functions.sql.MatchRowTimeFunction

All Implemented Interfaces:

BuiltInSqlOperator

public class MatchRowTimeFunction
extends BuiltInSqlFunction

The function used to access a rowtime attribute with TIMESTAMP or TIMESTAMP_LTZ type from MATCH_RECOGNIZE clause. The function accepts zero or one operand which is a field reference with rowtime attribute. If there is no operand, the function will return rowtime attribute with TIMESTAMP type. Otherwise, the return type will be same with the operand type.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.planner.functions.sql.BuiltInSqlFunction

BuiltInSqlFunction.Builder

Field Summary

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor and Description
MatchRowTimeFunction()

Method Summary

Modifier and Type	Method and Description
boolean	checkOperandTypes(org.apache.calcite.sql.SqlCallBinding callBinding, boolean throwOnFailure)
String	getAllowedSignatures(String opNameToUse)
org.apache.calcite.sql.SqlOperandCountRange	getOperandCountRange()
String	getSignatureTemplate(int operandsCount)
org.apache.calcite.rel.type.RelDataType	inferReturnType(org.apache.calcite.sql.SqlOperatorBinding opBinding)
boolean	isDeterministic()

Methods inherited from class org.apache.flink.table.planner.functions.sql.BuiltInSqlFunction

getMonotonicity, getQualifiedName, getVersion, isInternal, newBuilder

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

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

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

acceptCall, acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, equals, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getName, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getStrongPolicyInference, hashCode, inferReturnType, isAggregator, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, 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.flink.table.planner.functions.sql.BuiltInSqlOperator

extractNameFromQualifiedName, toQualifiedName, unwrapIsInternal, unwrapVersion

Constructor Detail

MatchRowTimeFunction

public MatchRowTimeFunction()

Method Detail

getAllowedSignatures

public String getAllowedSignatures(String opNameToUse)

Overrides:

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

getOperandCountRange

public org.apache.calcite.sql.SqlOperandCountRange getOperandCountRange()

Overrides:

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

getSignatureTemplate

public String getSignatureTemplate(int operandsCount)

Overrides:

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

checkOperandTypes

public boolean checkOperandTypes(org.apache.calcite.sql.SqlCallBinding callBinding,
                                 boolean throwOnFailure)

Overrides:

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

inferReturnType

public org.apache.calcite.rel.type.RelDataType inferReturnType(org.apache.calcite.sql.SqlOperatorBinding opBinding)

Overrides:

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

isDeterministic

public boolean isDeterministic()

Overrides:

isDeterministic in class BuiltInSqlFunction