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CodeTree.hpp
Package: mysql-4.1.16-win-src.zip [view]
Upload User: romrleung
Upload Date: 2022-05-23
Package Size: 18897k
Code Size: 1k
Category:
MySQL
Development Platform:
Visual C++
- /* Copyright (C) 2003 MySQL AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #ifndef ODBC_CODEGEN_CodeTree_hpp
- #define ODBC_CODEGEN_CodeTree_hpp
- #include <common/common.hpp>
- /*
- * Intermediary statement evalution plan. Starts as parse tree. Final
- * format maps directly to ExecTree.
- */
- class PlanTree {
- public:
- virtual ~PlanTree() = 0;
- };
- /*
- * Executable code and runtime data. Currently looks like PlanTree.
- * Later may change code format to linear "byte code" and move execution
- * to a SQL block in NDB kernel.
- */
- class ExecTree {
- public:
- class Code {
- public:
- virtual ~Code() = 0;
- };
- class Data {
- public:
- virtual ~Data() = 0;
- };
- virtual ~ExecTree() = 0;
- };
- #endif