Code_create_table.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:4k
源码类别:
MySQL数据库
开发平台:
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 */
- #include <common/StmtArea.hpp>
- #include "Code_create_table.hpp"
- #include "Code_root.hpp"
- // Plan_create_table
- Plan_create_table::~Plan_create_table()
- {
- }
- Plan_base*
- Plan_create_table::analyze(Ctx& ctx, Ctl& ctl)
- {
- stmtArea().stmtInfo().setName(Stmt_name_create_table);
- // analyze the create row
- ctx_assert(m_createRow != 0);
- m_createRow->analyze(ctx, ctl);
- if (! ctx.ok())
- return 0;
- return this;
- }
- void
- Plan_create_table::describe(Ctx& ctx)
- {
- stmtArea().setFunction(ctx, "CREATE TABLE", SQL_DIAG_CREATE_TABLE);
- }
- Exec_base*
- Plan_create_table::codegen(Ctx& ctx, Ctl& ctl)
- {
- ctx_assert(m_createRow != 0);
- Exec_create_table* exec = new Exec_create_table(ctl.m_execRoot);
- ctl.m_execRoot->saveNode(exec);
- const unsigned count = m_createRow->countColumn();
- Exec_create_table::Code::Attr* attrList = new Exec_create_table::Code::Attr[1 + count];
- unsigned tupleId = 0;
- unsigned autoIncrement = 0;
- for (unsigned i = 1; i <= count; i++) {
- Plan_ddl_column* column = m_createRow->getColumn(i);
- Exec_create_table::Code::Attr& attr = attrList[i];
- attr.m_attrName.assign(column->getName());
- attr.m_sqlType = column->sqlType();
- attr.m_tupleKey = column->getPrimaryKey();
- attr.m_tupleId = column->getTupleId();
- attr.m_autoIncrement = column->getAutoIncrement();
- if (attr.m_tupleId)
- tupleId = i;
- if (attr.m_autoIncrement)
- autoIncrement = i;
- attr.m_defaultValue = 0;
- Plan_expr* expr;
- if ((expr = column->getDefaultValue()) != 0) {
- Exec_expr* execExpr = static_cast<Exec_expr*>(expr->codegen(ctx, ctl));
- if (! ctx.ok())
- return 0;
- ctx_assert(execExpr != 0);
- attr.m_defaultValue = execExpr;
- }
- }
- Exec_create_table::Code& code = *new Exec_create_table::Code(m_name, count, attrList, tupleId, autoIncrement);
- exec->setCode(code);
- code.m_fragmentType = m_fragmentType;
- code.m_logging = m_logging;
- return exec;
- }
- void
- Plan_create_table::print(Ctx& ctx)
- {
- ctx.print(" [create_table '%s'", m_name.c_str());
- Plan_base* a[] = { m_createRow };
- printList(ctx, a, 1);
- ctx.print("]");
- }
- // Exec_create_table
- Exec_create_table::Code::~Code()
- {
- delete[] m_attrList;
- }
- Exec_create_table::Data::~Data()
- {
- }
- Exec_create_table::~Exec_create_table()
- {
- }
- void
- Exec_create_table::alloc(Ctx& ctx, Ctl& ctl)
- {
- const Code& code = getCode();
- for (unsigned i = 1; i <= code.m_attrCount; i++) {
- const Code::Attr& attr = code.m_attrList[i];
- if (attr.m_defaultValue != 0)
- attr.m_defaultValue->alloc(ctx, ctl);
- }
- Data& data = *new Data;
- setData(data);
- }
- void
- Exec_create_table::close(Ctx& ctx)
- {
- const Code& code = getCode();
- for (unsigned i = 1; i <= code.m_attrCount; i++) {
- const Code::Attr& attr = code.m_attrList[i];
- if (attr.m_defaultValue != 0)
- attr.m_defaultValue->close(ctx);
- }
- }
- void
- Exec_create_table::print(Ctx& ctx)
- {
- const Code& code = getCode();
- ctx.print(" [create_table %s]", code.m_tableName.c_str());
- }