#include "dict0load.h"
#include "mysql_version.h"
#include "btr0pcur.h"
#include "btr0btr.h"
#include "page0page.h"
#include "mach0data.h"
#include "dict0dict.h"
#include "dict0boot.h"
#include "dict0stats.h"
#include "rem0cmp.h"
#include "srv0start.h"
#include "srv0srv.h"
#include "dict0crea.h"
#include "dict0priv.h"
#include "ha_prototypes.h"
#include "fts0priv.h"

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Functions
UNIV_INTERN char *	dict_get_first_table_name_in_db (const char *name)
UNIV_INTERN void	dict_print (void)
UNIV_INTERN const rec_t *	dict_startscan_system (btr_pcur_t pcur, mtr_t mtr, dict_system_id_t system_id)
UNIV_INTERN const rec_t *	dict_getnext_system (btr_pcur_t pcur, mtr_t mtr)
UNIV_INTERN const char *	dict_process_sys_tables_rec_and_mtr_commit (mem_heap_t heap, const rec_t rec, dict_table_t *table, dict_table_info_t status, mtr_t mtr)
UNIV_INTERN const char *	dict_process_sys_indexes_rec (mem_heap_t heap, const rec_t rec, dict_index_t index, table_id_t table_id)
UNIV_INTERN const char *	dict_process_sys_columns_rec (mem_heap_t heap, const rec_t rec, dict_col_t column, table_id_t table_id, const char **col_name)
UNIV_INTERN const char *	dict_process_sys_fields_rec (mem_heap_t heap, const rec_t rec, dict_field_t sys_field, ulint pos, index_id_t *index_id, index_id_t last_id)
UNIV_INTERN const char *	dict_process_sys_foreign_rec (mem_heap_t heap, const rec_t rec, dict_foreign_t *foreign)
UNIV_INTERN const char *	dict_process_sys_foreign_col_rec (mem_heap_t heap, const rec_t rec, const char name, const char for_col_name, const char *ref_col_name, ulint pos)
UNIV_INTERN const char *	dict_process_sys_tablespaces (mem_heap_t heap, const rec_t rec, ulint space, const char name, ulint flags)
UNIV_INTERN const char *	dict_process_sys_datafiles (mem_heap_t heap, const rec_t rec, ulint space, const char *path)
UNIV_INTERN char *	dict_get_first_path (ulint space, const char *name)
UNIV_INTERN dberr_t	dict_update_filepath (ulint space_id, const char *filepath)
UNIV_INTERN dberr_t	dict_insert_tablespace_and_filepath (ulint space, const char name, const char filepath, ulint fsp_flags)
UNIV_INTERN void	dict_check_tablespaces_and_store_max_id (dict_check_t dict_check)
UNIV_INTERN const char *	dict_load_column_low (dict_table_t table, mem_heap_t heap, dict_col_t column, table_id_t table_id, const char *col_name, const rec_t rec)
UNIV_INTERN const char *	dict_load_field_low (byte index_id, dict_index_t index, dict_field_t sys_field, ulint pos, byte last_index_id, mem_heap_t heap, const rec_t *rec)
UNIV_INTERN const char *	dict_load_index_low (byte table_id, const char table_name, mem_heap_t heap, const rec_t rec, ibool allocate, dict_index_t **index)

Variables
UNIV_INTERN my_bool	srv_load_corrupted = FALSE
static mem_heap_t *	heap

Detailed Description

Loads to the memory cache database object definitions from dictionary tables

Created 4/24/1996 Heikki Tuuri

Definition in file dict0load.cc.

Function Documentation

UNIV_INTERN void dict_check_tablespaces_and_store_max_id ( dict_check_t dict_check )

This function looks at each table defined in SYS_TABLES. It checks the tablespace for any table with a space_id > 0. It looks up the tablespace in SYS_DATAFILES to ensure the correct path.

In a crash recovery we already have all the tablespace objects created. This function compares the space id information in the InnoDB data dictionary to what we already read with fil_load_single_table_tablespaces().

In a normal startup, we create the tablespace objects for every table in InnoDB's data dictionary, if the corresponding .ibd file exists. We also scan the biggest space id, and store it to fil_system.

Parameters

dict_check in: how to check

Definition at line 961 of file dict0load.cc.

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UNIV_INTERN char* dict_get_first_path	(	ulint	space,
		const char *	name
	)

Gets the filepath for a spaceid from SYS_DATAFILES and checks it against the contents of a link file. This function is called when there is no fil_node_t entry for this space ID so both durable locations on disk must be checked and compared. We use a temporary heap here for the table lookup, but not for the path returned which the caller must free. This function can return NULL if the space ID is not found in SYS_DATAFILES, then the caller will assume that the ibd file is in the normal datadir.

Returns: own: A copy of the first datafile found in SYS_DATAFILES.PATH for the given space ID. NULL if space ID is zero or not found.

Parameters

space	in: space id
name	in: tablespace name

Definition at line 786 of file dict0load.cc.

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UNIV_INTERN char* dict_get_first_table_name_in_db ( const char * name )

Finds the first table name in the given database.

Returns: own: table name, NULL if does not exist; the caller must free the memory in the string!

Parameters

name	in: database name which ends in '/'

Definition at line 93 of file dict0load.cc.

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UNIV_INTERN const rec_t* dict_getnext_system	(	btr_pcur_t *	pcur,
		mtr_t *	mtr
	)

This function gets the next system table record as it scans the table.

Returns: the next record if found, NULL if end of scan

Parameters

pcur	in/out: persistent cursor to the record
mtr	in: the mini-transaction

Definition at line 298 of file dict0load.cc.

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UNIV_INTERN dberr_t dict_insert_tablespace_and_filepath	(	ulint	space,
		const char *	name,
		const char *	filepath,
		ulint	fsp_flags
	)

Insert records into SYS_TABLESPACES and SYS_DATAFILES.

Returns: DB_SUCCESS if OK, dberr_t if the insert failed

Parameters

space	in: space id
name	in: talespace name
filepath	in: filepath
fsp_flags	in: tablespace flags

Definition at line 913 of file dict0load.cc.

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UNIV_INTERN const char* dict_load_column_low	(	dict_table_t *	table,
		mem_heap_t *	heap,
		dict_col_t *	column,
		table_id_t *	table_id,
		const char **	col_name,
		const rec_t *	rec
	)

Loads a table column definition from a SYS_COLUMNS record to dict_table_t.

Returns: error message, or NULL on success

Parameters

table	in/out: table, could be NULL if we just populate a dict_column_t struct with information from a SYS_COLUMNS record
heap	in/out: memory heap for temporary storage
column	out: dict_column_t to fill, or NULL if table != NULL
table_id	out: table id
col_name	out: column name
rec	in: SYS_COLUMNS record

Definition at line 1175 of file dict0load.cc.

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UNIV_INTERN const char* dict_load_field_low	(	byte *	index_id,
		dict_index_t *	index,
		dict_field_t *	sys_field,
		ulint *	pos,
		byte *	last_index_id,
		mem_heap_t *	heap,
		const rec_t *	rec
	)

Loads an index field definition from a SYS_FIELDS record to dict_index_t.

Returns: error message, or NULL on success

Parameters

index_id	in/out: index id (8 bytes) an "in" value if index != NULL and "out" if index == NULL
index	in/out: index, could be NULL if we just populate a dict_field_t struct with information from a SYS_FIELDS record
sys_field	out: dict_field_t to be filled
pos	out: Field position
last_index_id	in: last index id
heap	in/out: memory heap for temporary storage
rec	in: SYS_FIELDS record

Definition at line 1425 of file dict0load.cc.

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UNIV_INTERN const char* dict_load_index_low	(	byte *	table_id,
		const char *	table_name,
		mem_heap_t *	heap,
		const rec_t *	rec,
		ibool	allocate,
		dict_index_t **	index
	)

Loads an index definition from a SYS_INDEXES record to dict_index_t. If allocate=TRUE, we will create a dict_index_t structure and fill it accordingly. If allocated=FALSE, the dict_index_t will be supplied by the caller and filled with information read from the record.

Returns: error message, or NULL on success

Parameters

table_id	in/out: table id (8 bytes), an "in" value if allocate=TRUE and "out" when allocate=FALSE
table_name	in: table name
heap	in/out: temporary memory heap
rec	in: SYS_INDEXES record
allocate	in: TRUE=allocate index, FALSE=fill in a pre-allocated index
index	out,own: index, or NULL

Definition at line 1629 of file dict0load.cc.

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UNIV_INTERN void dict_print ( void )

Prints to the standard output information on all tables found in the data dictionary system table.

Definition at line 176 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_columns_rec	(	mem_heap_t *	heap,
		const rec_t *	rec,
		dict_col_t *	column,
		table_id_t *	table_id,
		const char **	col_name
	)

This function parses a SYS_COLUMNS record and populate a dict_column_t structure with the information from the record.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_COLUMNS rec
column	out: dict_col_t to be filled
table_id	out: table id
col_name	out: column name

Definition at line 407 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_datafiles	(	mem_heap_t *	heap,
		const rec_t *	rec,
		ulint *	space,
		const char **	path
	)

This function parses a SYS_DATAFILES record, extracts necessary information from the record and returns it to the caller.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_DATAFILES rec
space	out: space id
path	out: datafile paths

Definition at line 683 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_fields_rec	(	mem_heap_t *	heap,
		const rec_t *	rec,
		dict_field_t *	sys_field,
		ulint *	pos,
		index_id_t *	index_id,
		index_id_t	last_id
	)

This function parses a SYS_FIELDS record and populates a dict_field_t structure with the information from the record.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_FIELDS rec
sys_field	out: dict_field_t to be filled
pos	out: Field position
index_id	out: current index id
last_id	in: previous index id

Definition at line 430 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_foreign_col_rec	(	mem_heap_t *	heap,
		const rec_t *	rec,
		const char **	name,
		const char **	for_col_name,
		const char **	ref_col_name,
		ulint *	pos
	)

This function parses a SYS_FOREIGN_COLS record and extract necessary information from the record and return to caller.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_FOREIGN_COLS rec
name	out: foreign key constraint name
for_col_name	out: referencing column name
ref_col_name	out: referenced column name in referenced table
pos	out: column position

Definition at line 546 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_foreign_rec	(	mem_heap_t *	heap,
		const rec_t *	rec,
		dict_foreign_t *	foreign
	)

This function parses a SYS_FOREIGN record and populate a dict_foreign_t structure with the information from the record. For detail information about SYS_FOREIGN fields, please refer to dict_load_foreign() function.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_FOREIGN rec
foreign	out: dict_foreign_t struct to be filled

Definition at line 465 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_indexes_rec	(	mem_heap_t *	heap,
		const rec_t *	rec,
		dict_index_t *	index,
		table_id_t *	table_id
	)

This function parses a SYS_INDEXES record and populate a dict_index_t structure with the information from the record. For detail information about SYS_INDEXES fields, please refer to dict_boot() function.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_INDEXES rec
index	out: index to be filled
table_id	out: index table id

Definition at line 380 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_tables_rec_and_mtr_commit	(	mem_heap_t *	heap,
		const rec_t *	rec,
		dict_table_t **	table,
		dict_table_info_t	status,
		mtr_t *	mtr
	)

This function processes one SYS_TABLES record and populate the dict_table_t struct for the table. Extracted out of dict_print() to be used by both monitor table output and information schema innodb_sys_tables output.

Returns: error message, or NULL on success

Parameters

heap	in/out: temporary memory heap
rec	in: SYS_TABLES record
table	out: dict_table_t to fill
status	in: status bit controls options such as whether we shall look for dict_table_t from cache first
mtr	in/out: mini-transaction, will be committed

Definition at line 322 of file dict0load.cc.

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UNIV_INTERN const char* dict_process_sys_tablespaces	(	mem_heap_t *	heap,
		const rec_t *	rec,
		ulint *	space,
		const char **	name,
		ulint *	flags
	)

This function parses a SYS_TABLESPACES record, extracts necessary information from the record and returns to caller.

Returns: error message, or NULL on success

Parameters

heap	in/out: heap memory
rec	in: current SYS_TABLESPACES rec
space	out: space id
name	out: tablespace name
flags	out: tablespace flags

Definition at line 616 of file dict0load.cc.

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UNIV_INTERN const rec_t* dict_startscan_system	(	btr_pcur_t *	pcur,
		mtr_t *	mtr,
		dict_system_id_t	system_id
	)

This function opens a system table, and returns the first record.

Returns: first record of the system table

Parameters

pcur	out: persistent cursor to the record
mtr	in: the mini-transaction
system_id	in: which system table to open

Definition at line 268 of file dict0load.cc.

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UNIV_INTERN dberr_t dict_update_filepath	(	ulint	space_id,
		const char *	filepath
	)

Update the record for space_id in SYS_TABLESPACES to this filepath.

Returns: DB_SUCCESS if OK, dberr_t if the insert failed

Parameters

space_id	in: space id
filepath	in: filepath

Definition at line 856 of file dict0load.cc.

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Variable Documentation

mem_heap_t* heap

< in/out: table in: memory heap for temporary storage

Definition at line 1766 of file dict0load.cc.

Functions

Variables

Detailed Description

Function Documentation

Variable Documentation