io.trino.execution.DeallocateTask 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.execution;
import com.google.common.util.concurrent.ListenableFuture;
import io.trino.execution.warnings.WarningCollector;
import io.trino.sql.tree.Deallocate;
import io.trino.sql.tree.Expression;
import java.util.List;
import static com.google.common.util.concurrent.Futures.immediateVoidFuture;
public class DeallocateTask
implements DataDefinitionTask
{
@Override
public String getName()
{
return "DEALLOCATE";
}
@Override
public ListenableFuture execute(
Deallocate statement,
QueryStateMachine stateMachine,
List parameters,
WarningCollector warningCollector)
{
String statementName = statement.getName().getValue();
stateMachine.removePreparedStatement(statementName);
return immediateVoidFuture();
}
}