~drizzle-trunk/drizzle/development : contents of drizzled/statement/drop

~drizzle-trunk/drizzle/development : (revision 1909)

/* -*- 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
 */

#include "config.h"
#include "drizzled/show.h"
#include "drizzled/session.h"
#include "drizzled/statement/drop_index.h"
#include "drizzled/statement/alter_table.h"
#include "drizzled/db.h"

namespace drizzled
{

bool statement::DropIndex::execute()
{
  TableList *first_table= (TableList *) session->lex->select_lex.table_list.first;
  TableList *all_tables= session->lex->query_tables;

  /* Chicken/Egg... we need to search for the table, to know if the table exists, so we can build a full identifier from it */
  message::Table original_table_message;
  {
    TableIdentifier identifier(first_table->getSchemaName(), first_table->getTableName());
    if (plugin::StorageEngine::getTableDefinition(*session, identifier, original_table_message) != EEXIST)
    {
      my_error(ER_BAD_TABLE_ERROR, MYF(0), identifier.getSQLPath().c_str());
      return true;
    }
  }

  /*
     CREATE INDEX and DROP INDEX are implemented by calling ALTER
     TABLE with proper arguments.

     In the future ALTER TABLE will notice that the request is to
     only add indexes and create these one by one for the existing
     table without having to do a full rebuild.
   */
  /* Prepare stack copies to be re-execution safe */
  HA_CREATE_INFO create_info;

  assert(first_table == all_tables && first_table != 0);
  if (! session->endActiveTransaction())
  {
    return true;
  }

  memset(&create_info, 0, sizeof(create_info));
  create_info.db_type= 0;

  bool res;
  if (original_table_message.type() == message::Table::STANDARD )
  {
    TableIdentifier identifier(first_table->getSchemaName(), first_table->getTableName());

    create_info.default_table_charset= plugin::StorageEngine::getSchemaCollation(identifier);

    res= alter_table(session, 
                     identifier,
                     identifier,
                     &create_info, 
                     original_table_message,
                     create_table_proto, 
                     first_table,
                     &alter_info,
                     0, (Order*) 0, 0);
  }
  else
  {
    TableIdentifier catch22(first_table->getSchemaName(), first_table->getTableName());
    Table *table= session->find_temporary_table(catch22);
    assert(table);
    {
      TableIdentifier identifier(first_table->getSchemaName(), first_table->getTableName(), table->getShare()->getPath());
      create_info.default_table_charset= plugin::StorageEngine::getSchemaCollation(identifier);

      res= alter_table(session, 
                       identifier,
                       identifier,
                       &create_info, 
                       original_table_message,
                       create_table_proto, 
                       first_table,
                       &alter_info,
                       0, (Order*) 0, 0);
    }
  }
  return res;
}

} /* namespace drizzled */

1100.3.56 by Padraig O'Sullivan Extracted the CREATE INDEX and DROP INDEX command into an individual class	1	/* -- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; --
	2	* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
	3	*
	4	* Copyright (C) 2009 Sun Microsystems
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
1241.9.36 by Monty Taylor ZOMG. I deleted drizzled/server_includes.h.	21	#include "config.h"
1130.3.13 by Monty Taylor Finished cleaning namespaces in drizzled/statement	22	#include "drizzled/show.h"
	23	#include "drizzled/session.h"
	24	#include "drizzled/statement/drop_index.h"
	25	#include "drizzled/statement/alter_table.h"
1235.4.23 by Stewart Smith fix includes for drizzled/db.h. Now only in .cc files, no header files. should make modifying db.h much less painful.	26	#include "drizzled/db.h"
1100.3.56 by Padraig O'Sullivan Extracted the CREATE INDEX and DROP INDEX command into an individual class	27
1130.3.12 by Monty Taylor using namespace drizzled; to namespace drizzled { in statement/	28	namespace drizzled
	29	{
1100.3.56 by Padraig O'Sullivan Extracted the CREATE INDEX and DROP INDEX command into an individual class	30
1100.3.62 by Padraig O'Sullivan Created a CreateIndex class and DropIndex class instead of a	31	bool statement::DropIndex::execute()
1100.3.56 by Padraig O'Sullivan Extracted the CREATE INDEX and DROP INDEX command into an individual class	32	{
	33	TableList first_table= (TableList ) session->lex->select_lex.table_list.first;
	34	TableList *all_tables= session->lex->query_tables;
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	35
	36	/* Chicken/Egg... we need to search for the table, to know if the table exists, so we can build a full identifier from it */
	37	message::Table original_table_message;
	38	{
1874.1.2 by Brian Aker Encapsulate table_name from table_list.	39	TableIdentifier identifier(first_table->getSchemaName(), first_table->getTableName());
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	40	if (plugin::StorageEngine::getTableDefinition(*session, identifier, original_table_message) != EEXIST)
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	41	{
1415 by Brian Aker Mass overhaul to use schema_identifier.	42	my_error(ER_BAD_TABLE_ERROR, MYF(0), identifier.getSQLPath().c_str());
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	43	return true;
	44	}
	45	}
	46
1100.3.56 by Padraig O'Sullivan Extracted the CREATE INDEX and DROP INDEX command into an individual class	47	/*
1100.3.62 by Padraig O'Sullivan Created a CreateIndex class and DropIndex class instead of a	48	CREATE INDEX and DROP INDEX are implemented by calling ALTER
	49	TABLE with proper arguments.
	50
	51	In the future ALTER TABLE will notice that the request is to
	52	only add indexes and create these one by one for the existing
	53	table without having to do a full rebuild.
	54	*/
	55	/* Prepare stack copies to be re-execution safe */
	56	HA_CREATE_INFO create_info;
	57
	58	assert(first_table == all_tables && first_table != 0);
	59	if (! session->endActiveTransaction())
	60	{
	61	return true;
	62	}
	63
	64	memset(&create_info, 0, sizeof(create_info));
	65	create_info.db_type= 0;
	66
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	67	bool res;
	68	if (original_table_message.type() == message::Table::STANDARD )
	69	{
1874.1.2 by Brian Aker Encapsulate table_name from table_list.	70	TableIdentifier identifier(first_table->getSchemaName(), first_table->getTableName());
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	71
1415 by Brian Aker Mass overhaul to use schema_identifier.	72	create_info.default_table_charset= plugin::StorageEngine::getSchemaCollation(identifier);
1415 by Brian Aker Mass overhaul to use schema_identifier.	73
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	74	res= alter_table(session,
1395.1.2 by Brian Aker More logic pulling from ALTER TABLE	75	identifier,
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	76	identifier,
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	77	&create_info,
1502.1.30 by Brian Aker First pass on cleanup of Stewart's patch, plus re-engineer to make it work a	78	original_table_message,
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	79	create_table_proto,
	80	first_table,
	81	&alter_info,
1892.3.3 by tdavies struct order_st changed and renamed to c++ class named:Order	82	0, (Order*) 0, 0);
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	83	}
	84	else
	85	{
1874.1.2 by Brian Aker Encapsulate table_name from table_list.	86	TableIdentifier catch22(first_table->getSchemaName(), first_table->getTableName());
1864.3.14 by Brian Aker Remove cases where we do not use an identifier to find/delete temp tables,	87	Table *table= session->find_temporary_table(catch22);
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	88	assert(table);
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	89	{
1874.1.2 by Brian Aker Encapsulate table_name from table_list.	90	TableIdentifier identifier(first_table->getSchemaName(), first_table->getTableName(), table->getShare()->getPath());
1415 by Brian Aker Mass overhaul to use schema_identifier.	91	create_info.default_table_charset= plugin::StorageEngine::getSchemaCollation(identifier);
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	92
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	93	res= alter_table(session,
1395.1.2 by Brian Aker More logic pulling from ALTER TABLE	94	identifier,
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	95	identifier,
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	96	&create_info,
1502.1.30 by Brian Aker First pass on cleanup of Stewart's patch, plus re-engineer to make it work a	97	original_table_message,
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	98	create_table_proto,
	99	first_table,
	100	&alter_info,
1892.3.3 by tdavies struct order_st changed and renamed to c++ class named:Order	101	0, (Order*) 0, 0);
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	102	}
1389 by Brian Aker Large reord in ALTER TABLE for RENAME.	103	}
1100.3.62 by Padraig O'Sullivan Created a CreateIndex class and DropIndex class instead of a	104	return res;
1100.3.56 by Padraig O'Sullivan Extracted the CREATE INDEX and DROP INDEX command into an individual class	105	}
1130.3.12 by Monty Taylor using namespace drizzled; to namespace drizzled { in statement/	106
	107	} /* namespace drizzled */