dict0stats.ic File Reference

#include "univ.i"
#include "dict0dict.h"
#include "dict0types.h"
#include "srv0srv.h"

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Functions
UNIV_INLINE void	dict_stats_set_persistent (dict_table_t *table, ibool ps_on, ibool ps_off)
UNIV_INLINE ibool	dict_stats_is_persistent_enabled (const dict_table_t *table)
UNIV_INLINE void	dict_stats_auto_recalc_set (dict_table_t *table, ibool auto_recalc_on, ibool auto_recalc_off)
UNIV_INLINE ibool	dict_stats_auto_recalc_is_enabled (const dict_table_t *table)
UNIV_INLINE void	dict_stats_init (dict_table_t *table)
UNIV_INLINE void	dict_stats_deinit (dict_table_t *table)

Detailed Description

Code used for calculating and manipulating table statistics.

Created Jan 23, 2012 Vasil Dimov

Function Documentation

UNIV_INLINE ibool dict_stats_auto_recalc_is_enabled

(

const dict_table_t *

table

)

Check whether auto recalc is enabled for a given table.

Returns

TRUE if enabled, FALSE otherwise

Parameters

table

in: table

UNIV_INLINE void dict_stats_auto_recalc_set	(	dict_table_t *	table,
		ibool	auto_recalc_on,
		ibool	auto_recalc_off
	)

Set the auto recalc flag for a given table (only honored for a persistent stats enabled table). The flag is set only in the in-memory table object and is not saved in InnoDB files. It will be read from the .frm file upon first open from MySQL after a server restart.

Parameters

table	in/out: table
auto_recalc_on	in: explicitly enabled
auto_recalc_off	in: explicitly disabled

UNIV_INLINE void dict_stats_deinit

(

dict_table_t *

table

)

Deinitialize table's stats after the last close of the table. This is used to detect "FLUSH TABLE" and refresh the stats upon next open.

Parameters

table

in/out: table

UNIV_INLINE void dict_stats_init

(

dict_table_t *

table

)

Initialize table's stats for the first time when opening a table.

Parameters

table

in/out: table

UNIV_INLINE ibool dict_stats_is_persistent_enabled

(

const dict_table_t *

table

)

Check whether persistent statistics is enabled for a given table.

Returns

TRUE if enabled, FALSE otherwise

Parameters

table

in: table

UNIV_INLINE void dict_stats_set_persistent	(	dict_table_t *	table,
		ibool	ps_on,
		ibool	ps_off
	)

Set the persistent statistics flag for a given table. This is set only in the in-memory table object and is not saved on disk. It will be read from the .frm file upon first open from MySQL after a server restart.

Parameters

table	in/out: table
ps_on	in: persistent stats explicitly enabled
ps_off	in: persistent stats explicitly disabled