Package io.github.fupacat.ast

Class TopRowFilter

java.lang.Object

io.github.fupacat.ast.TSqlFragment

io.github.fupacat.ast.TopRowFilter

All Implemented Interfaces:

Serializable

public class TopRowFilter
extends TSqlFragment

This class represents the top row filter, that can be used in select statement.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
ScalarExpression	Expression	The expression.
boolean	Percent	True if PERCENT keyword was used.
boolean	WithApproximate	True if WITH APPROXIMATE (or APPROX) keyword was used.
boolean	WithTies	True is WITH TIES keywords were used.

Fields inherited from class io.github.fupacat.ast.TSqlFragment

firstTokenIndex, lastTokenIndex, ScriptTokenStream, Value

Constructor Summary

Constructors

Constructor	Description
TopRowFilter()

Method Summary

Modifier and Type	Method	Description
void	accept(TSqlFragmentVisitor visitor)
void	acceptChildren(TSqlFragmentVisitor visitor)

Methods inherited from class io.github.fupacat.ast.TSqlFragment

SetIdentifier, SetUnquotedIdentifier, UpdateTokenInfo, UpdateTokenInfo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

Expression

public ScalarExpression Expression

The expression.

Percent

public boolean Percent

True if PERCENT keyword was used.

WithTies

public boolean WithTies

True is WITH TIES keywords were used. Important: The interpreter has to check there is an order by clause.

WithApproximate

public boolean WithApproximate

True if WITH APPROXIMATE (or APPROX) keyword was used. Introduced in SQL Server 2025 for approximate query processing.

Constructor Details

TopRowFilter

public TopRowFilter()

Method Details

accept

public void accept(TSqlFragmentVisitor visitor)

Specified by:

accept in class TSqlFragment

acceptChildren

public void acceptChildren(TSqlFragmentVisitor visitor)

Overrides:

acceptChildren in class TSqlFragment