org.apache.calcite.sql.fun

Class SqlInOperator

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlBinaryOperator

org.apache.calcite.sql.fun.SqlInOperator

public class SqlInOperator
extends SqlBinaryOperator

Definition of the SQL IN operator, which tests for a value's membership in a subquery or a list of values.

Field Summary

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

kind, MDX_PRECEDENCE, NL

Method Summary

Methods

Modifier and Type	Method and Description
boolean	argumentMustBeScalar(int ordinal) Returns whether the ordinalth argument to this operator must be scalar (as opposed to a query).
RelDataType	deriveType(SqlValidator validator, SqlValidatorScope scope, SqlCall call) Derives the type of a call to this operator.
boolean	isNotIn() Returns whether this is the 'NOT IN' operator

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

adjustType, getMonotonicity, getSignatureTemplate, getSyntax, validRexOperands

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

acceptCall, acceptCall, allowsFraming, checkOperandCount, checkOperandTypes, createCall, createCall, createCall, createCall, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, hashCode, inferReturnType, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isName, leftPrec, preValidateCall, requiresDecimalExpansion, requiresOrder, rewriteCall, rightPrec, toString, unparse, unparseListClause, unparseListClause, validateCall, validateOperands

Methods inherited from class java.lang.Object

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

Method Detail

isNotIn

public boolean isNotIn()

Returns whether this is the 'NOT IN' operator

Returns:

whether this is the 'NOT IN' operator

deriveType

public RelDataType deriveType(SqlValidator validator,
                     SqlValidatorScope scope,
                     SqlCall call)

Description copied from class: SqlOperator

Derives the type of a call to this operator.

This method is an intrinsic part of the validation process so, unlike SqlOperator.inferReturnType(org.apache.calcite.sql.SqlOperatorBinding), specific operators would not typically override this method.

Overrides:

deriveType in class SqlBinaryOperator

Parameters:

validator - Validator

scope - Scope of validation

call - Call to this operator

Returns:

Type of call

argumentMustBeScalar

public boolean argumentMustBeScalar(int ordinal)

Description copied from class: SqlOperator

Returns whether the ordinalth argument to this operator must be scalar (as opposed to a query).

If true (the default), the validator will attempt to convert the argument into a scalar subquery, which must have one column and return at most one row.

Operators such as SELECT and EXISTS override this method.

Overrides:

argumentMustBeScalar in class SqlOperator