org.apache.calcite.sql.fun

Class SqlDotOperator

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlSpecialOperator

org.apache.calcite.sql.fun.SqlDotOperator

public class SqlDotOperator
extends org.apache.calcite.sql.SqlSpecialOperator

The dot operator ., used to access a field of a record. For example, a.b.

This class was copied over from Calcite to fix the derived type. If the ROW is nullable force the accessed field to be nullable as well.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlSpecialOperator

org.apache.calcite.sql.SqlSpecialOperator.ReduceResult, org.apache.calcite.sql.SqlSpecialOperator.TokenSequence

Field Summary

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

kind, MDX_PRECEDENCE, NL

Method Summary

Modifier and Type	Method and Description
<R> void	acceptCall(org.apache.calcite.sql.util.SqlVisitor<R> visitor, org.apache.calcite.sql.SqlCall call, boolean onlyExpressions, org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler<R> argHandler)
boolean	checkOperandTypes(org.apache.calcite.sql.SqlCallBinding callBinding, boolean throwOnFailure)
org.apache.calcite.rel.type.RelDataType	deriveType(org.apache.calcite.sql.validate.SqlValidator validator, org.apache.calcite.sql.validate.SqlValidatorScope scope, org.apache.calcite.sql.SqlCall call)
String	getAllowedSignatures(String name)
org.apache.calcite.sql.SqlOperandCountRange	getOperandCountRange()
org.apache.calcite.rel.type.RelDataType	inferReturnType(org.apache.calcite.sql.SqlOperatorBinding opBinding)
org.apache.calcite.sql.SqlSpecialOperator.ReduceResult	reduceExpr(int ordinal, org.apache.calcite.sql.SqlSpecialOperator.TokenSequence list)
void	unparse(org.apache.calcite.sql.SqlWriter writer, org.apache.calcite.sql.SqlCall call, int leftPrec, int rightPrec)
void	validateCall(org.apache.calcite.sql.SqlCall call, org.apache.calcite.sql.validate.SqlValidator validator, org.apache.calcite.sql.validate.SqlValidatorScope scope, org.apache.calcite.sql.validate.SqlValidatorScope operandScope)
boolean	validRexOperands(int count, org.apache.calcite.util.Litmus litmus)

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

getSyntax

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

acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, equals, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getNameAsId, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, getStrongPolicyInference, hashCode, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands

Methods inherited from class java.lang.Object

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

Method Detail

reduceExpr

public org.apache.calcite.sql.SqlSpecialOperator.ReduceResult reduceExpr(int ordinal,
                                                                         org.apache.calcite.sql.SqlSpecialOperator.TokenSequence list)

Overrides:

reduceExpr in class org.apache.calcite.sql.SqlSpecialOperator

unparse

public void unparse(org.apache.calcite.sql.SqlWriter writer,
                    org.apache.calcite.sql.SqlCall call,
                    int leftPrec,
                    int rightPrec)

Overrides:

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

getOperandCountRange

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

Overrides:

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

acceptCall

public <R> void acceptCall(org.apache.calcite.sql.util.SqlVisitor<R> visitor,
                           org.apache.calcite.sql.SqlCall call,
                           boolean onlyExpressions,
                           org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler<R> argHandler)

Overrides:

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

deriveType

public org.apache.calcite.rel.type.RelDataType deriveType(org.apache.calcite.sql.validate.SqlValidator validator,
                                                          org.apache.calcite.sql.validate.SqlValidatorScope scope,
                                                          org.apache.calcite.sql.SqlCall call)

Overrides:

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

validateCall

public void validateCall(org.apache.calcite.sql.SqlCall call,
                         org.apache.calcite.sql.validate.SqlValidator validator,
                         org.apache.calcite.sql.validate.SqlValidatorScope scope,
                         org.apache.calcite.sql.validate.SqlValidatorScope operandScope)

Overrides:

validateCall 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

validRexOperands

public boolean validRexOperands(int count,
                                org.apache.calcite.util.Litmus litmus)

Overrides:

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

getAllowedSignatures

public String getAllowedSignatures(String name)

Overrides:

getAllowedSignatures 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