MySQL  8.0.18
Source Code Documentation
sql_query_rewrite.h
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1 #ifndef SQL_QUERY_REWRITE_INCLUDED
2 #define SQL_QUERY_REWRITE_INCLUDED
3 
4 /* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
5 
6  This program is free software; you can redistribute it and/or modify
7  it under the terms of the GNU General Public License, version 2.0,
8  as published by the Free Software Foundation.
9 
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15  separately licensed software that they have included with MySQL.
16 
17  This program is distributed in the hope that it will be useful,
18  but WITHOUT ANY WARRANTY; without even the implied warranty of
19  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  GNU General Public License, version 2.0, for more details.
21 
22  You should have received a copy of the GNU General Public License
23  along with this program; if not, write to the Free Software
24  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
25 
26 class Parser_state;
27 class THD;
28 
29 /**
30  Calls the query rewrite plugins' respective rewrite functions before parsing
31  the query.
32 
33  @param[in] thd The session sending the query to be rewritten.
34 */
36 
37 /**
38  Enables digests in the parser state if any plugin needs it.
39 
40  @param thd The session.
41 
42  @param ps This parser state will have digests enabled if any plugin
43  needs it.
44 
45  @note For the time being, only post-parse query rewrite plugins are able to
46  request digests. If other plugin types need the same, this function needs to
47  be modified.
48 */
50 
51 /**
52  Calls query rewrite plugins after parsing the query.
53 
54  @param[in] thd The session with the query to be rewritten.
55  @param is_prepared True if the query was a prepared statement.
56 */
57 bool invoke_post_parse_rewrite_plugins(THD *thd, bool is_prepared);
58 
59 #endif /* SQL_QUERY_REWRITE_INCLUDED */
bool invoke_post_parse_rewrite_plugins(THD *thd, bool is_prepared)
Calls query rewrite plugins after parsing the query.
Definition: sql_query_rewrite.cc:93
Internal state of the parser.
Definition: sql_lex.h:3858
void invoke_pre_parse_rewrite_plugins(THD *thd)
Calls the query rewrite plugins' respective rewrite functions before parsing the query.
Definition: sql_query_rewrite.cc:50
void enable_digest_if_any_plugin_needs_it(THD *thd, Parser_state *ps)
Enables digests in the parser state if any plugin needs it.
Definition: sql_query_rewrite.cc:87
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_class.h:778