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/* 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_create_row.hpp"
#include "Code_root.hpp"
Plan_create_row::~Plan_create_row()
{
}
Plan_base*
Plan_create_row::analyze(Ctx& ctx, Ctl& ctl)
{
// check for duplicate column name
for (unsigned i = 1, n = countColumn(); i < n; i++) {
const BaseString& a = getColumn(i)->getName();
for (unsigned i2 = i + 1; i2 <= n; i2++) {
const BaseString& a2 = getColumn(i2)->getName();
if (strcmp(a.c_str(), a2.c_str()) == 0) {
ctx.pushStatus(Error::Gen, "duplicate column %s", a.c_str());
return 0;
}
}
}
// move single-column primary key constraint to constraint list
for (unsigned i = 1, n = countColumn(); i <= n; i++) {
Plan_ddl_column* column = getColumn(i);
if (column->m_primaryKey) {
Plan_ddl_row* ddlRow = new Plan_ddl_row(m_root);
m_root->saveNode(ddlRow);
ddlRow->addColumn(column);
Plan_ddl_constr* constr = new Plan_ddl_constr(m_root);
m_root->saveNode(constr);
constr->setRow(ddlRow);
addConstr(constr);
column->m_primaryKey = false; // will be set again
}
}
// check primary key constraints
if (countConstr() < 1) {
ctx.pushStatus(Error::Gen, "table must have a primary key");
return 0;
}
if (countConstr() > 1) {
ctx.pushStatus(Error::Gen, "table can have only one primary key");
return 0;
}
Plan_ddl_row* ddlRow = getConstr(1)->getRow();
for (unsigned i = 1, n = ddlRow->countColumn(); i <= n; i++) {
Plan_ddl_column* column = ddlRow->getColumn(i);
const BaseString& a = column->getName();
bool found = false;
for (unsigned i2 = 1, n2 = countColumn(); i2 <= n2; i2++) {
Plan_ddl_column* column2 = getColumn(i2);
const BaseString& a2 = column2->getName();
if (strcmp(a.c_str(), a2.c_str()) != 0)
continue;
if (column2->getPrimaryKey()) {
ctx.pushStatus(Error::Gen, "duplicate primary key constraint on %s", a.c_str());
return 0;
}
column2->setPrimaryKey();
found = true;
break;
}
if (! found) {
ctx.pushStatus(Error::Gen, "undefined primary key column %s", a.c_str());
return 0;
}
}
// analyze column types
for (unsigned i = 1, n = countColumn(); i <= n; i++) {
getColumn(i)->analyze(ctx, ctl);
if (! ctx.ok())
return 0;
}
// check TupleId
unsigned tupleId = 0;
for (unsigned i = 1, n = countColumn(); i <= n; i++) {
Plan_ddl_column* column = getColumn(i);
if (! column->getTupleId())
continue;
if (i != 1) {
ctx.pushStatus(Error::Gen, "tuple id column %u is not first column", i);
return 0;
}
if (tupleId != 0) { // cannot happen now since attr name is fixed
ctx.pushStatus(Error::Gen, "duplicate tuple id column %u", i);
return 0;
}
tupleId = i;
}
if (tupleId != 0) {
for (unsigned i = 1, n = countColumn(); i <= n; i++) {
Plan_ddl_column* column = getColumn(i);
if (i == tupleId)
continue;
if (! column->getPrimaryKey())
continue;
ctx.pushStatus(Error::Gen, "cannot have both tuple id and other primary key column %u", i);
return 0;
}
}
// check auto-increment
unsigned autoIncrement = 0;
for (unsigned i = 1, n = countColumn(); i <= n; i++) {
Plan_ddl_column* column = getColumn(i);
if (! column->getAutoIncrement())
continue;
if (autoIncrement != 0) {
ctx.pushStatus(Error::Gen, "duplicate auto-increment column %u", i);
return 0;
}
autoIncrement = i;
}
if (autoIncrement != 0) {
for (unsigned i = 1, n = countColumn(); i <= n; i++) {
Plan_ddl_column* column = getColumn(i);
if (i == autoIncrement)
continue;
if (! column->getPrimaryKey())
continue;
ctx.pushStatus(Error::Gen, "cannot have both auto-increment column and other primary key column %u", i);
return 0;
}
}
return this;
}
Exec_base*
Plan_create_row::codegen(Ctx& ctx, Ctl& ctl)
{
ctx_assert(false);
return 0;
}
void
Plan_create_row::print(Ctx& ctx)
{
ctx.print(" [create_row");
for (unsigned i = 1; i <= countColumn(); i++) {
Plan_base* a = m_columnList[i];
printList(ctx, &a, 1);
}
for (unsigned i = 1; i <= countConstr(); i++) {
Plan_base* a = m_constrList[i];
printList(ctx, &a, 1);
}
}
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