Package org.apache.calcite.test

Class MockSqlOperatorTable.TableFunctionReturnTableFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.test.MockSqlOperatorTable.TableFunctionReturnTableFunction

All Implemented Interfaces:

SqlTableFunction

Enclosing class:

MockSqlOperatorTable

public static class MockSqlOperatorTable.TableFunctionReturnTableFunction
extends SqlFunction
implements SqlTableFunction

"TFRT" user-defined table function.

Field Summary

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor	Description
TableFunctionReturnTableFunction()

Method Summary

Modifier and Type	Method	Description
@Nullable SqlReturnTypeInference	getReturnTypeInference()	Returns the return type inference strategy for this operator, or null if return type inference is implemented by a subclass override.
SqlReturnTypeInference	getRowTypeInference()	Returns the record type of the table yielded by this function when applied to given arguments.
RelDataType	inferReturnType(SqlOperatorBinding opBinding)	Infers the return type of an invocation of this operator; only called after the number and types of operands have already been validated.

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

deriveType, getFunctionType, getNameAsId, getParamNames, getParamTypes, getSqlIdentifier, getSyntax, 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, deriveOperandType, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getRightPrec, getSignatureTemplate, getSqlCallFactory, getStrongPolicyInference, hashCode, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, not, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, reverse, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.sql.SqlTableFunction

tableCharacteristic

Constructor Details

TableFunctionReturnTableFunction

public TableFunctionReturnTableFunction()

Method Details

inferReturnType

public RelDataType inferReturnType(SqlOperatorBinding opBinding)

Description copied from class: SqlOperator

Infers the return type of an invocation of this operator; only called after the number and types of operands have already been validated. Subclasses must either override this method or supply an instance of SqlReturnTypeInference to the constructor.

Overrides:

inferReturnType in class SqlOperator

Parameters:

opBinding - description of invocation (not necessarily a SqlCall)

Returns:

inferred return type

getReturnTypeInference

public @Nullable SqlReturnTypeInference getReturnTypeInference()

Description copied from class: SqlOperator

Returns the return type inference strategy for this operator, or null if return type inference is implemented by a subclass override.

Overrides:

getReturnTypeInference in class SqlOperator

getRowTypeInference

public SqlReturnTypeInference getRowTypeInference()

Description copied from interface: SqlTableFunction

Returns the record type of the table yielded by this function when applied to given arguments. Only literal arguments are passed, non-literal are replaced with default values (null, 0, false, etc).

Specified by:

getRowTypeInference in interface SqlTableFunction

Returns:

strategy to infer the row type of a call to this function