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<?php
/**
* `SELECT` statement.
*
* @package SqlParser
* @subpackage Statements
*/
namespace SqlParser\Statements;
use SqlParser\Statement;
use SqlParser\Components\ArrayObj;
use SqlParser\Components\FunctionCall;
use SqlParser\Components\Expression;
use SqlParser\Components\IntoKeyword;
use SqlParser\Components\JoinKeyword;
use SqlParser\Components\Limit;
use SqlParser\Components\OrderKeyword;
use SqlParser\Components\Condition;
/**
* `SELECT` statement.
*
* SELECT
* [ALL | DISTINCT | DISTINCTROW ]
* [HIGH_PRIORITY]
* [MAX_STATEMENT_TIME = N]
* [STRAIGHT_JOIN]
* [SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
* [SQL_CACHE | SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS]
* select_expr [, select_expr ...]
* [FROM table_references
* [PARTITION partition_list]
* [WHERE where_condition]
* [GROUP BY {col_name | expr | position}
* [ASC | DESC], ... [WITH ROLLUP]]
* [HAVING where_condition]
* [ORDER BY {col_name | expr | position}
* [ASC | DESC], ...]
* [LIMIT {[offset,] row_count | row_count OFFSET offset}]
* [PROCEDURE procedure_name(argument_list)]
* [INTO OUTFILE 'file_name'
* [CHARACTER SET charset_name]
* export_options
* | INTO DUMPFILE 'file_name'
* | INTO var_name [, var_name]]
* [FOR UPDATE | LOCK IN SHARE MODE]]
*
* @category Statements
* @package SqlParser
* @subpackage Statements
* @author Dan Ungureanu <udan1107@gmail.com>
* @license http://opensource.org/licenses/GPL-2.0 GNU Public License
*/
class SelectStatement extends Statement
{
/**
* Options for `SELECT` statements and their slot ID.
*
* @var array
*/
public static $OPTIONS = array(
'ALL' => 1,
'DISTINCT' => 1,
'DISTINCTROW' => 1,
'HIGH_PRIORITY' => 2,
'MAX_STATEMENT_TIME' => array(3, 'var='),
'STRAIGHT_JOIN' => 4,
'SQL_SMALL_RESULT' => 5,
'SQL_BIG_RESULT' => 6,
'SQL_BUFFER_RESULT' => 7,
'SQL_CACHE' => 8,
'SQL_NO_CACHE' => 8,
'SQL_CALC_FOUND_ROWS' => 9,
);
/**
* The clauses of this statement, in order.
*
* @see Statement::$CLAUSES
*
* @var array
*/
public static $CLAUSES = array(
'SELECT' => array('SELECT', 2),
// Used for options.
'_OPTIONS' => array('_OPTIONS', 1),
// Used for selected expressions.
'_SELECT' => array('SELECT', 1),
'FROM' => array('FROM', 3),
'PARTITION' => array('PARTITION', 3),
'JOIN' => array('JOIN', 1),
'WHERE' => array('WHERE', 3),
'GROUP BY' => array('GROUP BY', 3),
'HAVING' => array('HAVING', 3),
'ORDER BY' => array('ORDER BY', 3),
'LIMIT' => array('LIMIT', 3),
'PROCEDURE' => array('PROCEDURE', 3),
'INTO' => array('INTO', 3),
'UNION' => array('UNION', 3),
// These are available only when `UNION` is present.
// 'ORDER BY' => array('ORDER BY', 3),
// 'LIMIT' => array('LIMIT', 3),
);
/**
* Expressions that are being selected by this statement.
*
* @var Expression[]
*/
public $expr = array();
/**
* Tables used as sources for this statement.
*
* @var Expression[]
*/
public $from = array();
/**
* Partitions used as source for this statement.
*
* @var ArrayObj
*/
public $partition;
/**
* Conditions used for filtering each row of the result set.
*
* @var Condition[]
*/
public $where;
/**
* Conditions used for grouping the result set.
*
* @var OrderKeyword[]
*/
public $group;
/**
* Conditions used for filtering the result set.
*
* @var Condition[]
*/
public $having;
/**
* Specifies the order of the rows in the result set.
*
* @var OrderKeyword[]
*/
public $order;
/**
* Conditions used for limiting the size of the result set.
*
* @var Limit
*/
public $limit;
/**
* Procedure that should process the data in the result set.
*
* @var FunctionCall
*/
public $procedure;
/**
* Destination of this result set.
*
* @var IntoKeyword
*/
public $into;
/**
* Joins.
*
* @var JoinKeyword[]
*/
public $join;
/**
* Unions.
*
* @var SelectStatement[]
*/
public $union = array();
}
|
