Code_pred.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* 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 */
- #include "Code_pred.hpp"
- #include "Code_pred_op.hpp"
- #include "Code_root.hpp"
- // Plan_pred
- Plan_pred::~Plan_pred()
- {
- }
- bool
- Plan_pred::isGroupBy(const Plan_expr_row* row) const
- {
- return false;
- }
- Plan_pred*
- Plan_pred::opAnd(Plan_pred* pred2)
- {
- Plan_pred_op* predAnd = new Plan_pred_op(m_root, Pred_op::And);
- m_root->saveNode(predAnd);
- predAnd->setPred(1, this);
- predAnd->setPred(2, pred2);
- return predAnd;
- }
- // Exec_pred
- Exec_pred::Code::~Code()
- {
- }
- Exec_pred::Data::~Data()
- {
- }
- Exec_pred::~Exec_pred()
- {
- }
- Pred_value&
- Exec_pred::Data::groupValue(unsigned i, bool initFlag)
- {
- if (m_groupValue.size() == 0) {
- m_groupValue.resize(1);
- }
- if (initFlag) {
- //unsigned i2 = m_groupValue.size();
- //ctx_assert(i == i2);
- m_groupValue.push_back(Pred_value_unknown);
- }
- ctx_assert(i != 0 && i < m_groupValue.size());
- return m_groupValue[i];
- }