MiniOB
1
MiniOB is one mini database, helping developers to learn how database works.
载入中...
搜索中...
未找到
src
observer
sql
stmt
delete_stmt.h
1
/* Copyright (c) 2021 OceanBase and/or its affiliates. All rights reserved.
2
miniob is licensed under Mulan PSL v2.
3
You can use this software according to the terms and conditions of the Mulan PSL v2.
4
You may obtain a copy of Mulan PSL v2 at:
5
http://license.coscl.org.cn/MulanPSL2
6
THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
7
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
8
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
9
See the Mulan PSL v2 for more details. */
10
11
//
12
// Created by Wangyunlai on 2022/5/27.
13
//
14
15
#pragma once
16
17
#include "sql/parser/parse_defs.h"
18
#include "
sql/stmt/stmt.h
"
19
20
class
Table
;
21
class
FilterStmt
;
22
27
class
DeleteStmt
:
public
Stmt
28
{
29
public
:
30
DeleteStmt
(
Table
*table,
FilterStmt
*filter_stmt);
31
~DeleteStmt
()
override
;
32
33
Table
*table()
const
{
return
table_; }
34
FilterStmt
*filter_stmt()
const
{
return
filter_stmt_; }
35
36
StmtType type()
const override
{
return
StmtType::DELETE; }
37
38
public
:
39
static
RC create(
Db
*db,
const
DeleteSqlNode
&delete_sql,
Stmt
*&stmt);
40
41
private
:
42
Table
*table_ =
nullptr
;
43
FilterStmt
*filter_stmt_ =
nullptr
;
44
};
Db
一个DB实例负责管理一批表
Definition:
db.h:46
DeleteStmt
Delete 语句
Definition:
delete_stmt.h:28
FilterStmt
Filter/谓词/过滤语句
Definition:
filter_stmt.h:73
Stmt
Stmt for Statement
Definition:
stmt.h:83
Table
表
Definition:
table.h:42
stmt.h
DeleteSqlNode
描述一个delete语句
Definition:
parse_defs.h:122
制作者
1.9.5