82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/* Copyright (c) 2018, 2021, Alibaba and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL/PolarDB-X Engine hereby grant you an
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additional permission to link the program and your derivative works with the
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separately licensed software that they have included with
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MySQL/PolarDB-X Engine.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef SQL_TRANS_PROC_IMPLICIT_SAVEPOINT_INCLUDED
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#define SQL_TRANS_PROC_IMPLICIT_SAVEPOINT_INCLUDED
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#include "sql/trans_proc/common.h"
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/**
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Rollback to the last implicit savepoint which is made internally when running
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INSERT/DELETE/UPDATE statement if variable 'auto_saveponit' is ON.
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CALL dbms_trans.rollback_to_implicit_savepoint();
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*/
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namespace im {
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/**
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Proc of rollback_to_implicit_savepoint
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*/
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class Trans_proc_implicit_savepoint : public Trans_proc_base {
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public:
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explicit Trans_proc_implicit_savepoint(PSI_memory_key key)
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: Trans_proc_base(key) {
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m_result_type = Result_type::RESULT_OK;
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}
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/* Singleton instance of this class */
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static Proc *instance();
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virtual Sql_cmd *evoke_cmd(THD *thd, List<Item> *list) const;
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virtual const std::string str() const {
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return std::string("rollback_to_implicit_savepoint");
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}
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};
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/**
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Cmd of rollback_to_implicit_savepoint
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*/
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class Sql_cmd_trans_proc_implicit_savepoint : public Sql_cmd_trans_proc {
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public:
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explicit Sql_cmd_trans_proc_implicit_savepoint(THD *thd, List<Item> *list,
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const Proc *proc)
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: Sql_cmd_trans_proc(thd, list, proc) {}
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/**
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Implementation of Proc execution body.
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@param[in] THD Thread context
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@retval true Failure
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@retval false Success
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*/
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virtual bool pc_execute(THD *thd);
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/* Override default send_result */
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virtual void send_result(THD *thd, bool error);
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};
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} // namespace im
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#endif
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