Filesort Class Reference

#include <filesort.h>

Inheritance diagram for Filesort:

List of all members.

Public Member Functions
	Filesort (ORDER *order_arg, ha_rows limit_arg, SQL_SELECT *select_arg)
uint	make_sortorder ()
Public Attributes
ORDER *	order
ha_rows	limit
SORT_FIELD *	sortorder
SQL_SELECT *	select
bool	own_select
bool	using_pq

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Detailed Description

Sorting related info. To be extended by another WL to include complete filesort implementation.

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Member Data Documentation

ha_rows Filesort::limit

Number of records to return

ORDER* Filesort::order

List of expressions to order the table by

bool Filesort::own_select

TRUE <=> free select on destruction

SQL_SELECT* Filesort::select

select to use for getting records

SORT_FIELD* Filesort::sortorder

ORDER BY list with some precalculated info for filesort

bool Filesort::using_pq

true means we are using Priority Queue for order by with limit.

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The documentation for this class was generated from the following files:

• filesort.h
• filesort.cc