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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 <common/StmtArea.hpp>
#include <dictionary/DictTable.hpp>
#include <dictionary/DictColumn.hpp>
#include "Code_insert.hpp"
#include "Code_query_repeat.hpp"
#include "Code_query_project.hpp"
#include "Code_table.hpp"
#include "Code_root.hpp"
// Plan_insert
Plan_insert::~Plan_insert()
{
}
Plan_base*
Plan_insert::analyze(Ctx& ctx, Ctl& ctl)
{
stmtArea().stmtInfo().setName(Stmt_name_insert);
ctx_assert(m_table != 0);
m_table->analyze(ctx, ctl);
if (! ctx.ok())
return 0;
// handle MySql syntax
if (m_mysqlRow != 0) {
setDmlRow(m_mysqlRow->m_dmlRow);
setExprRow(m_mysqlRow->m_exprRow);
m_mysqlRow = 0;
}
if (m_dmlRow == 0) {
// construct column list
setDmlRow(new Plan_dml_row(m_root));
m_root->saveNode(m_dmlRow);
const DictTable& dictTable = m_table->dictTable();
unsigned n = dictTable.getSize();
for (unsigned i = 1; i <= n; i++) {
DictColumn* dictColumn = dictTable.getColumn(i);
Plan_dml_column* column = new Plan_dml_column(m_root, dictColumn->getName());
m_root->saveNode(column);
m_dmlRow->addColumn(column);
}
}
// set name resolution scope
ctl.m_tableList.resize(1 + 1); // indexed from 1
ctl.m_tableList[1] = m_table;
// analyze the dml columns
m_dmlRow->analyze(ctx, ctl);
if (! ctx.ok())
return 0;
ctl.m_dmlRow = m_dmlRow; // row type to convert to
if (m_query != 0) {
m_query->analyze(ctx, ctl);
if (! ctx.ok())
return 0;
} else if (m_select == 0) {
// analyze the expression row
m_exprRow->analyze(ctx, ctl);
if (! ctx.ok())
return 0;
// transform the row into query
Plan_query_repeat* queryRepeat = new Plan_query_repeat(m_root, 1);
m_root->saveNode(queryRepeat);
Plan_query_project* queryProject = new Plan_query_project(m_root);
m_root->saveNode(queryProject);
queryProject->setQuery(queryRepeat);
queryProject->setRow(m_exprRow);
setQuery(queryProject);
} else {
// analyze the select into query
Plan_query* query = static_cast<Plan_query*>(m_select->analyze(ctx, ctl));
if (! ctx.ok())
return 0;
setQuery(query);
}
return this;
}
void
Plan_insert::describe(Ctx& ctx)
{
stmtArea().setFunction(ctx, "INSERT", SQL_DIAG_INSERT);
}
Exec_base*
Plan_insert::codegen(Ctx& ctx, Ctl& ctl)
{
// create code for the query
ctx_assert(m_query != 0);
Exec_query* execQuery = static_cast<Exec_query*>(m_query->codegen(ctx, ctl));
if (! ctx.ok())
return 0;
ctx_assert(execQuery != 0);
// set up
ctx_assert(m_table != 0);
const BaseString& tableName = m_table->getName();
const DictTable& dictTable = m_table->dictTable();
const ColumnVector& columns = m_table->dmlColumns();
ctx_assert(columns.size() > 0);
const unsigned attrCount = columns.size() - 1;
// create the code
Exec_insert::Code& code = *new Exec_insert::Code();
code.m_insertOp = m_insertOp;
code.m_tableName = strcpy(new char[tableName.length() + 1], tableName.c_str());
code.m_attrCount = attrCount;
code.m_attrId = new NdbAttrId[1 + attrCount];
code.m_isKey = new bool[1 + attrCount];
code.m_attrId[0] = (NdbAttrId)-1;
code.m_tupleId = dictTable.tupleId(); // maybe 0
code.m_autoIncrement = dictTable.autoIncrement(); // maybe 0
unsigned k;
if ((k = code.m_tupleId) != 0 || (k = code.m_autoIncrement) != 0) {
const DictColumn& dictColumn = *dictTable.getColumn(k);
code.m_idType = dictColumn.sqlType();
}
for (unsigned i = 1; i <= attrCount; i++) {
Plan_column* column = columns[i];
ctx_assert(column != 0);
const DictColumn& dictColumn = column->dictColumn();
code.m_attrId[i] = dictColumn.getAttrId();
code.m_isKey[i] = dictColumn.isKey();
}
// default values XXX a mess
code.m_defaultCount = 0;
for (unsigned j = 1; j <= dictTable.getSize(); j++) {
const DictColumn& dictColumn = *dictTable.getColumn(j);
if (dictColumn.getDefaultValue() != 0 && ! code.findAttrId(dictColumn.getAttrId()))
code.m_defaultCount++;
}
if (code.m_defaultCount != 0) {
code.m_defaultId = new NdbAttrId[1 + code.m_defaultCount];
for (unsigned i = 0, j = 1; j <= dictTable.getSize(); j++) {
const DictColumn& dictColumn = *dictTable.getColumn(j);
if (dictColumn.getDefaultValue() != 0 && ! code.findAttrId(dictColumn.getAttrId()))
code.m_defaultId[++i] = dictColumn.getAttrId();
}
SqlSpecs sqlSpecs(code.m_defaultCount);
for (unsigned i = 0, j = 1; j <= dictTable.getSize(); j++) {
const DictColumn& dictColumn = *dictTable.getColumn(j);
if (dictColumn.getDefaultValue() != 0 && ! code.findAttrId(dictColumn.getAttrId())) {
SqlSpec sqlSpec(dictColumn.sqlType(), SqlSpec::Physical);
sqlSpecs.setEntry(++i, sqlSpec);
}
}
code.m_defaultValue = new SqlRow(sqlSpecs);
for (unsigned i = 0, j = 1; j <= dictTable.getSize(); j++) {
const DictColumn& dictColumn = *dictTable.getColumn(j);
if (dictColumn.getDefaultValue() != 0 && ! code.findAttrId(dictColumn.getAttrId())) {
const char* defaultValue = dictColumn.getDefaultValue();
ExtType extType(ExtType::Char);
ExtSpec extSpec(extType);
SQLINTEGER ind = SQL_NTS;
ExtField extField(extSpec, (SQLPOINTER)defaultValue, 0, &ind);
SqlField& f = code.m_defaultValue->getEntry(++i);
f.copyin(ctx, extField);
if (! ctx.ok())
return 0;
}
}
}
// create the exec
Exec_insert* exec = new Exec_insert(ctl.m_execRoot);
ctl.m_execRoot->saveNode(exec);
exec->setCode(code);
exec->setQuery(execQuery);
return exec;
}
void
Plan_insert::print(Ctx& ctx)
{
ctx.print(" [%s", m_insertOp == Insert_op_insert ? "insert" : "write");
Plan_base* a[] = { m_table, m_dmlRow, m_exprRow, m_query };
printList(ctx, a, 4);
ctx.print("]");
}
// Exec_insert
Exec_insert::Code::~Code()
{
delete[] m_tableName;
delete[] m_attrId;
delete[] m_isKey;
delete[] m_defaultId;
delete m_defaultValue;
}
bool
Exec_insert::Code::findAttrId(NdbAttrId attrId) const
{
for (unsigned i = 1; i <= m_attrCount; i++) {
if (m_attrId[i] == attrId)
return true;
}
return false;
}
Exec_insert::Data::~Data()
{
}
Exec_insert::~Exec_insert()
{
}
void
Exec_insert::alloc(Ctx& ctx, Ctl& ctl)
{
// allocate the query
ctx_assert(m_query != 0);
m_query->alloc(ctx, ctl);
// create data
Data& data = *new Data();
setData(data);
}
void
Exec_insert::close(Ctx& ctx)
{
}
void
Exec_insert::print(Ctx& ctx)
{
const Code& code = getCode();
ctx_assert(m_query != 0);
ctx.print(" [insert");
ctx.print(" attrId=");
for (unsigned i = 1; i <= code.m_attrCount; i++) {
if (i > 1)
ctx.print(",");
ctx.print("%u", (unsigned)code.m_attrId[i]);
}
ctx.print(" table=%s", code.m_tableName);
m_query->print(ctx);
ctx.print("]");
}
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