Code_expr.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_expr.hpp"
- #include "Code_expr_row.hpp"
- // Plan_expr
- Plan_expr::~Plan_expr()
- {
- }
- bool
- Plan_expr::isEqual(const Plan_expr* expr) const
- {
- return false;
- }
- bool
- Plan_expr::isAnyEqual(const Plan_expr_row* row) const
- {
- ctx_assert(row != 0);
- const unsigned size = row->getSize();
- for (unsigned i = 1; i <= size; i++) {
- if (isEqual(row->getExpr(i)))
- return true;
- }
- return false;
- }
- bool
- Plan_expr::isGroupBy(const Plan_expr_row* row) const
- {
- return false;
- }
- // Exec_expr
- Exec_expr::Code::~Code()
- {
- }
- Exec_expr::Data::~Data()
- {
- }
- Exec_expr::~Exec_expr()
- {
- }
- SqlField&
- Exec_expr::Data::groupField(const SqlType& sqlType, unsigned i, bool initFlag)
- {
- if (m_groupField.size() == 0) {
- m_groupField.resize(1);
- }
- if (initFlag) {
- //unsigned i2 = m_groupField.size();
- //ctx_assert(i == i2);
- const SqlSpec sqlSpec(sqlType, SqlSpec::Physical);
- const SqlField sqlField(sqlSpec);
- m_groupField.push_back(sqlField);
- }
- ctx_assert(i != 0 && i < m_groupField.size());
- return m_groupField[i];
- }