Code_ddl_column.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
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 <NdbApi.hpp>
- #include <common/StmtArea.hpp>
- #include "Code_ddl_column.hpp"
- #include "Code_expr_conv.hpp"
- #include "Code_root.hpp"
- // Plan_ddl_column
- Plan_ddl_column::~Plan_ddl_column()
- {
- }
- Plan_base*
- Plan_ddl_column::analyze(Ctx& ctx, Ctl& ctl)
- {
- ctx_assert(m_type != 0);
- if (! m_type->m_sqlType.nullable()) {
- m_nullable = false;
- }
- m_sqlType = m_type->m_sqlType;
- m_sqlType.nullable(m_nullable);
- const BaseString& name = getName();
- if (m_unSigned) {
- switch (m_sqlType.type()) {
- case SqlType::Smallint:
- case SqlType::Integer:
- case SqlType::Bigint:
- break;
- default:
- ctx.pushStatus(Error::Gen, "invalid unsigned qualifier on column %s", name.c_str());
- return 0;
- }
- m_sqlType.unSigned(true);
- }
- if (strcmp(name.c_str(), "NDB$TID") == 0) {
- if (! m_primaryKey) {
- ctx.pushStatus(Error::Gen, "column %s must be a primary key", name.c_str());
- return 0;
- }
- if (sqlType().type() != SqlType::Bigint || ! sqlType().unSigned()) {
- ctx.pushStatus(Error::Gen, "tuple id %s must have type BIGINT UNSIGNED", name.c_str());
- return 0;
- }
- setTupleId();
- }
- if (m_autoIncrement) {
- if (! m_primaryKey) {
- ctx.pushStatus(Error::Gen, "auto-increment column %s must be a primary key", name.c_str());
- return 0;
- }
- if (sqlType().type() != SqlType::Smallint && sqlType().type() != SqlType::Integer && sqlType().type() != SqlType::Bigint) {
- ctx.pushStatus(Error::Gen, "auto-increment column %s must have an integral type", name.c_str());
- return 0;
- }
- }
- if (m_defaultValue != 0) {
- if (m_primaryKey) {
- ctx.pushStatus(Sqlstate::_42000, Error::Gen, "default value not allowed on primary key column %s", name.c_str());
- return 0;
- }
- m_defaultValue->analyze(ctx, ctl);
- if (! ctx.ok())
- return 0;
- // insert conversion node
- Plan_expr_conv* exprConv = new Plan_expr_conv(m_root, sqlType());
- m_root->saveNode(exprConv);
- exprConv->setExpr(m_defaultValue);
- Plan_expr* expr = static_cast<Plan_expr*>(exprConv->analyze(ctx, ctl));
- if (! ctx.ok())
- return 0;
- ctx_assert(expr != 0);
- m_defaultValue = expr;
- }
- return this;
- }
- Exec_base*
- Plan_ddl_column::codegen(Ctx& ctx, Ctl& ctl)
- {
- ctx_assert(false);
- return 0;
- }
- void
- Plan_ddl_column::print(Ctx& ctx)
- {
- ctx.print(" [ddl_column %s key=%d id=%d]", getPrintName(), m_primaryKey, m_tupleId);
- }