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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2009 Sun Microsystems
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* table names I_S table methods.
*/
#include "drizzled/server_includes.h"
#include "drizzled/session.h"
#include "drizzled/show.h"
#include "drizzled/tztime.h"
#include "helper_methods.h"
#include "table_names.h"
#include <vector>
using namespace drizzled;
using namespace std;
/*
* Vectors of columns for the table names I_S table.
*/
static vector<const plugin::ColumnInfo *> *columns= NULL;
/*
* Methods for the table names I_S table.
*/
static plugin::InfoSchemaMethods *methods= NULL;
/*
* table names I_S table.
*/
static plugin::InfoSchemaTable *tn_table= NULL;
/**
* Populate the vectors of columns for the I_S table.
*
* @return a pointer to a std::vector of Columns.
*/
vector<const plugin::ColumnInfo *> *TableNamesIS::createColumns()
{
if (columns == NULL)
{
columns= new vector<const plugin::ColumnInfo *>;
}
else
{
clearColumns(*columns);
}
columns->push_back(new plugin::ColumnInfo("TABLE_CATALOG",
FN_REFLEN,
DRIZZLE_TYPE_VARCHAR,
0,
1,
"",
SKIP_OPEN_TABLE));
columns->push_back(new plugin::ColumnInfo("TABLE_SCHEMA",
NAME_CHAR_LEN,
DRIZZLE_TYPE_VARCHAR,
0,
0,
"",
SKIP_OPEN_TABLE));
columns->push_back(new plugin::ColumnInfo("TABLE_NAME",
NAME_CHAR_LEN,
DRIZZLE_TYPE_VARCHAR,
0,
0,
"Tables_in_",
SKIP_OPEN_TABLE));
columns->push_back(new plugin::ColumnInfo("TABLE_TYPE",
NAME_CHAR_LEN,
DRIZZLE_TYPE_VARCHAR,
0,
0,
"Table_type",
OPEN_FRM_ONLY));
return columns;
}
/**
* Initialize the I_S table.
*
* @return a pointer to an I_S table
*/
plugin::InfoSchemaTable *TableNamesIS::getTable()
{
columns= createColumns();
if (methods == NULL)
{
methods= new TabNamesISMethods();
}
if (tn_table == NULL)
{
tn_table= new plugin::InfoSchemaTable("TABLE_NAMES",
*columns,
1, 2, true, true, 0,
methods);
}
return tn_table;
}
/**
* Delete memory allocated for the table, columns and methods.
*/
void TableNamesIS::cleanup()
{
clearColumns(*columns);
delete tn_table;
delete methods;
delete columns;
}
int TabNamesISMethods::oldFormat(Session *session, drizzled::plugin::InfoSchemaTable *schema_table)
const
{
char tmp[128];
String buffer(tmp,sizeof(tmp), session->charset());
LEX *lex= session->lex;
Name_resolution_context *context= &lex->select_lex.context;
const drizzled::plugin::InfoSchemaTable::Columns tab_columns= schema_table->getColumns();
const drizzled::plugin::ColumnInfo *column= tab_columns[2];
buffer.length(0);
buffer.append(column->getOldName().c_str());
buffer.append(lex->select_lex.db);
if (lex->wild && lex->wild->ptr())
{
buffer.append(STRING_WITH_LEN(" ("));
buffer.append(lex->wild->ptr());
buffer.append(')');
}
Item_field *field= new Item_field(context,
NULL, NULL, column->getName().c_str());
if (session->add_item_to_list(field))
{
return 1;
}
field->set_name(buffer.ptr(), buffer.length(), system_charset_info);
if (session->lex->verbose)
{
field->set_name(buffer.ptr(), buffer.length(), system_charset_info);
column= tab_columns[3];
field= new Item_field(context, NULL, NULL, column->getName().c_str());
if (session->add_item_to_list(field))
{
return 1;
}
field->set_name(column->getOldName().c_str(),
column->getOldName().length(),
system_charset_info);
}
return 0;
}
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