Inheritance diagram for QUICK_RANGE_SELECT:

Collaboration diagram for QUICK_RANGE_SELECT:

Public Member Functions
	QUICK_RANGE_SELECT (THD thd, TABLE table, uint index_arg, bool no_alloc, MEM_ROOT parent_alloc, bool create_error)
void	need_sorted_output ()
int	init ()
int	reset (void)
int	get_next ()
void	range_end ()
int	get_next_prefix (uint prefix_length, uint group_key_parts, uchar *cur_prefix)
bool	reverse_sorted () const
bool	reverse_sort_possible () const
bool	unique_key_range ()
int	init_ror_merged_scan (bool reuse_handler)
void	save_last_pos ()
int	get_type ()
void	add_keys_and_lengths (String key_names, String used_lengths)
void	add_info_string (String *str)
void	dbug_dump (int indent, bool verbose)
QUICK_SELECT_I *	make_reverse (uint used_key_parts_arg)
void	set_handler (handler *file_arg)
Public Member Functions inherited from QUICK_SELECT_I
virtual bool	clustered_pk_range ()
virtual bool	is_keys_used (const MY_BITMAP *fields)
virtual bool	is_valid ()

Public Attributes
uint	mrr_flags
MEM_ROOT	alloc
Public Attributes inherited from QUICK_SELECT_I
ha_rows	records
double	read_time
TABLE *	head
uint	index
uint	max_used_key_length
uint	used_key_parts
uchar *	last_rowid
uchar *	record

Friends
class	TRP_ROR_INTERSECT
class	QUICK_SELECT_DESC
class	QUICK_INDEX_MERGE_SELECT
class	QUICK_ROR_INTERSECT_SELECT
class	QUICK_GROUP_MIN_MAX_SELECT
QUICK_RANGE_SELECT *	get_quick_select_for_ref (THD thd, TABLE table, struct st_table_ref *ref, ha_rows records)
bool	get_quick_keys (PARAM param, QUICK_RANGE_SELECT quick, KEY_PART key, SEL_ARG key_tree, uchar min_key, uint min_key_flag, uchar max_key, uint max_key_flag)
QUICK_RANGE_SELECT *	get_quick_select (PARAM , uint idx, SEL_ARG key_tree, uint mrr_flags, uint mrr_buf_size, MEM_ROOT *alloc)
uint	quick_range_seq_next (range_seq_t rseq, KEY_MULTI_RANGE *range)
range_seq_t	quick_range_seq_init (void *init_param, uint n_ranges, uint flags)

Additional Inherited Members
Public Types inherited from QUICK_SELECT_I
enum	{ QS_TYPE_RANGE = 0, QS_TYPE_INDEX_MERGE = 1, QS_TYPE_RANGE_DESC = 2, QS_TYPE_FULLTEXT = 3, QS_TYPE_ROR_INTERSECT = 4, QS_TYPE_ROR_UNION = 5, QS_TYPE_GROUP_MIN_MAX = 6 }

Detailed Description

Definition at line 402 of file opt_range.h.

Member Function Documentation

QUICK_SELECT_I * QUICK_RANGE_SELECT::make_reverse ( uint used_key_parts_arg )

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_SELECT_I.

Reimplemented in QUICK_SELECT_DESC.

Definition at line 10939 of file opt_range.cc.

bool QUICK_RANGE_SELECT::reverse_sort_possible ( ) const

inlinevirtual

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

Reimplemented in QUICK_SELECT_DESC.

Definition at line 472 of file opt_range.h.

bool QUICK_RANGE_SELECT::reverse_sorted ( ) const

inlinevirtual

Whether the range access method returns records in reverse order.

Reimplemented in QUICK_SELECT_DESC.

Definition at line 471 of file opt_range.h.

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