QUICK_SELECT_DESC Class Reference

Inheritance diagram for QUICK_SELECT_DESC:

List of all members.

Public Member Functions
	QUICK_SELECT_DESC (QUICK_RANGE_SELECT *q, uint used_key_parts, bool *create_err)
int	get_next ()
bool	reverse_sorted () const
bool	reverse_sort_possible () const
int	get_type ()
QUICK_SELECT_I *	make_reverse (uint used_key_parts_arg)

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Member Function Documentation

QUICK_SELECT_I* QUICK_SELECT_DESC::make_reverse

(

uint

used_key_parts_arg

)

[inline, virtual]

Create a compatible quick select with the result ordered in an opposite way

Parameters:

used_key_parts_arg

Number of used key parts

Return values:

NULL	in case of errors (OOM etc)
pointer	to a newly created QUICK_SELECT_DESC if success

Reimplemented from QUICK_RANGE_SELECT.

bool QUICK_SELECT_DESC::reverse_sort_possible

(

)

const [inline, virtual]

Whether the range access method is capable of returning records in reverse order.

Reimplemented from QUICK_RANGE_SELECT.

bool QUICK_SELECT_DESC::reverse_sorted

(

)

const [inline, virtual]

Whether the range access method returns records in reverse order.

Reimplemented from QUICK_RANGE_SELECT.

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

• opt_range.h
• opt_range.cc