SqlArgumentAssignmentOperator (Apache Calcite API)

java.lang.Object
- org.apache.calcite.sql.SqlOperator
- - org.apache.calcite.sql.SqlSpecialOperator
  - - org.apache.calcite.sql.SqlAsOperator
    - - org.apache.calcite.sql.fun.SqlArgumentAssignmentOperator

```
class SqlArgumentAssignmentOperator
extends SqlAsOperator
```
Operator that assigns an argument to a function call to a particular named parameter.
Not an expression; just a holder to represent syntax until the validator has chance to resolve arguments.
Sub-class of SqlAsOperator ("AS") out of convenience; to be consistent with AS, we reverse the arguments.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlSpecialOperator
  SqlSpecialOperator.ReduceResult, SqlSpecialOperator.TokenSequence

Field Summary
- Fields inherited from class org.apache.calcite.sql.SqlOperator
  kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors
Constructor Description

SqlArgumentAssignmentOperator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`unparse(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec)`	Writes a SQL representation of a call to this operator to a writer, including parentheses if the operators on either side are of greater precedence.

Methods inherited from class org.apache.calcite.sql.SqlAsOperator
acceptCall, deriveType, getMonotonicity, validateCall

Methods inherited from class org.apache.calcite.sql.SqlSpecialOperator
getSyntax, reduceExpr

Methods inherited from class org.apache.calcite.sql.SqlOperator
acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, checkOperandTypes, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getName, getNameAsId, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, hashCode, inferReturnType, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, leftPrec, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - SqlArgumentAssignmentOperator
```
SqlArgumentAssignmentOperator()
```
- Method Detail
  - unparse
```
public void unparse(SqlWriter writer,
                    SqlCall call,
                    int leftPrec,
                    int rightPrec)
```
    Description copied from class: SqlOperator
    
    Writes a SQL representation of a call to this operator to a writer, including parentheses if the operators on either side are of greater precedence.
    The default implementation of this method delegates to SqlSyntax.unparse(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlOperator, org.apache.calcite.sql.SqlCall, int, int).
    
    Overrides:
    
    unparse in class SqlAsOperator