org.apache.flink.cdc.runtime.functions

类 BuiltInTimestampFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.fun.SqlAbstractTimeFunction

org.apache.flink.cdc.runtime.functions.BuiltInTimestampFunction

@Internal
public class BuiltInTimestampFunction
extends org.apache.calcite.sql.fun.SqlAbstractTimeFunction

Function that used to define SQL time function like LOCALTIMESTAMP, CURRENT_TIMESTAMP, CURRENT_ROW_TIMESTAMP(), NOW() in Flink, the function support configuring the return type and the precision of return type.

字段概要

从类继承的字段 org.apache.calcite.sql.SqlOperator

kind, MDX_PRECEDENCE, NL

构造器概要

构造器

构造器和说明
BuiltInTimestampFunction(String functionName, org.apache.calcite.sql.type.SqlTypeName returnTypeName, int precision)

方法概要

限定符和类型	方法和说明
org.apache.calcite.rel.type.RelDataType	inferReturnType(org.apache.calcite.sql.SqlOperatorBinding opBinding)
boolean	isDeterministic()

从类继承的方法 org.apache.calcite.sql.fun.SqlAbstractTimeFunction

getMonotonicity, getSyntax, isDynamicFunction

从类继承的方法 org.apache.calcite.sql.SqlFunction

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

从类继承的方法 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, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, getStrongPolicyInference, hashCode, inferReturnType, isAggregator, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, not, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, reverse, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

从类继承的方法 java.lang.Object

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

构造器详细资料

BuiltInTimestampFunction

public BuiltInTimestampFunction(String functionName,
                                org.apache.calcite.sql.type.SqlTypeName returnTypeName,
                                int precision)

方法详细资料

inferReturnType

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

覆盖:

inferReturnType 在类中 org.apache.calcite.sql.fun.SqlAbstractTimeFunction

isDeterministic

public boolean isDeterministic()

覆盖:

isDeterministic 在类中 org.apache.calcite.sql.SqlOperator