databend_common_ast/ast/statements/
kill.rs

1// Copyright 2021 Datafuse Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::fmt::Display;
16use std::fmt::Formatter;
17
18use derive_visitor::Drive;
19use derive_visitor::DriveMut;
20#[derive(Debug, Clone, PartialEq, Eq, Drive, DriveMut)]
21pub enum KillTarget {
22    Query,
23    Connection,
24}
25
26impl Display for KillTarget {
27    fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
28        match self {
29            KillTarget::Query => write!(f, "QUERY"),
30            KillTarget::Connection => write!(f, "CONNECTION"),
31        }
32    }
33}