Package org.apache.flink.cdc.runtime.functions

Class 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.

    • Field Summary

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

        kind, MDX_PRECEDENCE, NL

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      org.apache.calcite.rel.type.RelDataType inferReturnType​(org.apache.calcite.sql.SqlOperatorBinding opBinding)  
      boolean isDeterministic()  

      • Methods inherited from class org.apache.calcite.sql.fun.SqlAbstractTimeFunction

        getMonotonicity, getSyntax, isDynamicFunction

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

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

    • Constructor Detail

      • BuiltInTimestampFunction

        public BuiltInTimestampFunction​(String functionName,
                                SqlTypeName returnTypeName,
                                int precision)

    • Method Detail

      • inferReturnType

        public org.apache.calcite.rel.type.RelDataType inferReturnType​(org.apache.calcite.sql.SqlOperatorBinding opBinding)
        Overrides:
        inferReturnType in class org.apache.calcite.sql.fun.SqlAbstractTimeFunction

      • isDeterministic

        public boolean isDeterministic()
        Overrides:
        isDeterministic in class org.apache.calcite.sql.SqlOperator