MySQL 8.3.0
Source Code Documentation
schema.h
Go to the documentation of this file.
1/* Copyright (c) 2017, 2023, Oracle and/or its affiliates.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is also distributed with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have included with MySQL.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
22
23#ifndef DD_UPGRADE__SCHEMA_H_INCLUDED
24#define DD_UPGRADE__SCHEMA_H_INCLUDED
25
26#include <vector>
27
28#include "sql/dd/string_type.h" // dd::String_type
29
30class THD;
31
32namespace dd {
33namespace upgrade_57 {
34
35/**
36 Create entry in mysql.schemata for all the folders found in data directory.
37 If db.opt file is not present in any folder, that folder will be treated as
38 a database and a warning is issued.
39
40 @param[in] thd Thread handle.
41 @param[in] dbname Schema name.
42
43 @retval false ON SUCCESS
44 @retval true ON FAILURE
45*/
46bool migrate_schema_to_dd(THD *thd, const char *dbname);
47
48/**
49 Find all the directories inside data directory. Every directory will be
50 treated as a schema. These directories are in filename-encoded form.
51
52 @param[out] db_name An std::vector containing all database name.
53
54 @retval false ON SUCCESS
55 @retval true ON FAILURE
56*/
57bool find_schema_from_datadir(std::vector<String_type> *db_name);
58
59} // namespace upgrade_57
60} // namespace dd
61
62#endif // DD_UPGRADE__SCHEMA_H_INCLUDED
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:35
bool find_schema_from_datadir(std::vector< String_type > *db_name)
Scans datadir for databases and lists all the database names.
Definition: schema.cc:197
bool migrate_schema_to_dd(THD *thd, const char *dbname)
Update the Schemata:DD for every database present in the data directory.
Definition: schema.cc:134
The version of the current data dictionary table definitions.
Definition: dictionary_client.h:42
const char * db_name
Definition: rules_table_service.cc:54