Package org.apache.calcite.sql.fun

Class SqlQuantifyOperator

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlBinaryOperator

org.apache.calcite.sql.fun.SqlInOperator

org.apache.calcite.sql.fun.SqlQuantifyOperator

public class SqlQuantifyOperator
extends SqlInOperator

Definition of the SQL ALL and SOMEoperators.

Each is used in combination with a relational operator: <, ≤, >, ≥, =, <>.

ANY is a synonym for SOME.

Field Summary

Fields

Modifier and Type	Field	Description
final SqlKind	comparisonKind

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

kind, MDX_PRECEDENCE, NL

Method Summary

Modifier and Type	Method	Description
RelDataType	deriveType(SqlValidator validator, SqlValidatorScope scope, SqlCall call)	Derives the type of a call to this operator.
@Nullable RelDataType	tryDeriveTypeForCollection(SqlValidator validator, SqlValidatorScope scope, SqlCall call)	Derive type for SOME(collection expression), ANY (collection expression).

Methods inherited from class org.apache.calcite.sql.fun.SqlInOperator

argumentMustBeScalar, isNotIn, not, validRexOperands

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

adjustType, getMonotonicity, getSignatureTemplate, getSyntax, reverse

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

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

Methods inherited from class java.lang.Object

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

Field Details

comparisonKind

public final SqlKind comparisonKind

Method Details

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 SqlInOperator

Parameters:

validator - Validator

scope - Scope of validation

call - Call to this operator

Returns:

Type of call

tryDeriveTypeForCollection

public @Nullable RelDataType tryDeriveTypeForCollection(SqlValidator validator,
 SqlValidatorScope scope,
 SqlCall call)

Derive type for SOME(collection expression), ANY (collection expression).

Parameters:

validator - Validator

scope - Scope of validation

call - Call to this operator

Returns:

If SOME or ALL is applied to a collection, then the function returns type of call, otherwise it returns null.