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<?php
/**
* `DROP` statement.
*
* @package SqlParser
* @subpackage Statements
*/
namespace SqlParser\Statements;
use SqlParser\Statement;
use SqlParser\Components\Expression;
/**
* `DROP` statement.
*
* @category Statements
* @package SqlParser
* @subpackage Statements
* @author Dan Ungureanu <udan1107@gmail.com>
* @license http://opensource.org/licenses/GPL-2.0 GNU Public License
*/
class DropStatement extends Statement
{
/**
* Options of this statement.
*
* @var array
*/
public static $OPTIONS = array(
'DATABASE' => 1,
'EVENT' => 1,
'FUNCTION' => 1,
'INDEX' => 1,
'LOGFILE' => 1,
'PROCEDURE' => 1,
'SCHEMA' => 1,
'SERVER' => 1,
'TABLE' => 1,
'TABLESPACE' => 1,
'TRIGGER' => 1,
'TEMPORARY' => 2,
'IF EXISTS' => 3,
);
/**
* The clauses of this statement, in order.
*
* @see Statement::$CLAUSES
*
* @var array
*/
public static $CLAUSES = array(
'DROP' => array('DROP', 2),
// Used for options.
'_OPTIONS' => array('_OPTIONS', 1),
// Used for select expressions.
'DROP_' => array('DROP', 1),
);
/**
* Dropped elements.
*
* @var Expression[]
*/
public $fields;
}