io.trino.sql.tree.SetOperation Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.trino.sql.tree;
import java.util.List;
import java.util.Optional;
public abstract class SetOperation
extends QueryBody
{
private final boolean distinct;
protected SetOperation(Optional location, boolean distinct)
{
super(location);
this.distinct = distinct;
}
public boolean isDistinct()
{
return distinct;
}
@Override
public R accept(AstVisitor visitor, C context)
{
return visitor.visitSetOperation(this, context);
}
public abstract List getRelations();
}