mirror of
https://github.com/MariaDB/server.git
synced 2025-08-01 03:47:19 +03:00
67b320b413
This feature stores the ddls of the tables/views that are used in a query, to the optimizer trace. It is currently controlled by a system variable store_ddls_in_optimizer_trace, and is not enabled by default. All the ddls will be stored in a single json array, with each element having table/view name, and the associated create definition of the table/view. The approach taken is to read global query_tables from the thd->lex, and read them in reverse. Create a record with table_name, ddl of the table and add the table_name to the hash, along with dumping the information to the trace. dbName_plus_tableName is used as a key, and the duplicate entries are not added to the hash. The main suite tests are also run with the feature enabled, and they all succeed.
26 lines
842 B
C
26 lines
842 B
C
/*
|
|
Copyright (c) 2025, MariaDB
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335
|
|
USA */
|
|
|
|
#ifndef OPT_TRACE_DDL_INFO
|
|
#define OPT_TRACE_DDL_INFO
|
|
|
|
#include "my_global.h"
|
|
|
|
bool store_table_definitions_in_trace(THD *thd);
|
|
|
|
#endif
|