Full text search header file. More...

#include "ha_prototypes.h"
#include "data0type.h"
#include "data0types.h"
#include "dict0types.h"
#include "ft_global.h"
#include "hash0hash.h"
#include "mem0mem.h"
#include "mysql/plugin_ftparser.h"
#include "que0types.h"
#include "rem0types.h"
#include "row0types.h"
#include "trx0types.h"
#include "ut0rbt.h"
#include "ut0vec.h"
#include "ut0wqueue.h"

Classes
struct	aux_name_vec_t
	Structure to manage FTS AUX table name and MDL during its drop. More...

struct	fts_trx_t
	Information about changes in a single transaction affecting the FTS system. More...

struct	fts_savepoint_t
	Information required for transaction savepoint handling. More...

struct	fts_trx_table_t
	Information about changed rows in a transaction for a single table. More...

struct	fts_trx_row_t
	Information about one changed row in a transaction. More...

struct	fts_doc_ids_t
	List of document ids that were added during a transaction. More...

struct	fts_string_t
	An UTF-16 ro UTF-8 string. More...

struct	fts_ranking_t
	Query ranked doc ids. More...

struct	fts_result_t
	Query result. More...

struct	fts_table_t
	This is used to generate the FTS auxiliary table name, we need the table id and the index id to generate the column specific FTS auxiliary table name. More...

class	fts_t
	The state of the FTS sub system. More...

struct	fts_aux_table_t
	For storing table info when checking for orphaned tables. More...

Macros
#define	FTS_NULL_DOC_ID 0
	"NULL" value of a document id. More...

#define	FTS_DOC_ID_COL_NAME "FTS_DOC_ID"
	FTS hidden column that is used to map to and from the row. More...

#define	FTS_DOC_ID_INDEX_NAME "FTS_DOC_ID_INDEX"
	The name of the index created by FTS. More...

#define	FTS_DOC_ID_INDEX_NAME_LEN 16

#define	FTS_DOC_ID_LEN 8
	Doc ID is a 8 byte value. More...

#define	FTS_NUM_FIELDS_SORT 3
	The number of fields to sort when we build FT index with FIC. More...

#define	MAX_DOC_ID_OPT_VAL 1073741824
	Maximum number of rows in a table, smaller than which, we will optimize using a 4 byte Doc ID for FIC merge sort to reduce sort size. More...

#define	FTS_DOC_ID_FORMAT IB_ID_FMT
	doc_id_t printf format More...

#define	fts_write_doc_id(d, s) mach_write_to_8(d, s)
	Convert document id to the InnoDB (BIG ENDIAN) storage format. More...

#define	fts_read_doc_id(s) mach_read_from_8(s)
	Read a document id to internal format. More...

#define	fts_bind_doc_id(i, n, v) pars_info_bind_int8_literal(i, n, v)
	Bind the doc id to a variable. More...

#define	FTS_NL 0
	Defines for FTS query mode, they have the same values as those defined in mysql file ft_global.h. More...

#define	FTS_BOOL 1

#define	FTS_SORTED 2

#define	FTS_EXPAND 4

#define	FTS_NO_RANKING 8

#define	FTS_PROXIMITY 16

#define	FTS_PHRASE 32

#define	FTS_OPT_RANKING 64

#define	FTS_INDEX_TABLE_IND_NAME "FTS_INDEX_TABLE_IND"

#define	FTS_COMMON_TABLE_IND_NAME "FTS_COMMON_TABLE_IND"

#define	FTS_OPTIMIZE_THRESHOLD 10000000
	Threshold where our optimize thread automatically kicks in. More...

#define	FTS_DOC_ID_MAX_STEP 65535
	Threshold to avoid exhausting of doc ids. More...

#define	FTS_MAX_WORD_LEN HA_FT_MAXBYTELEN
	Maximum possible Fulltext word length. More...

#define	FTS_MAX_WORD_LEN_IN_CHAR HA_FT_MAXCHARLEN
	Maximum possible Fulltext word length (in characters) More...

#define	FTS_DELETED_TABLE_NUM_COLS 1
	Number of columns in FTS AUX Tables. More...

#define	FTS_CONFIG_TABLE_NUM_COLS 2

#define	FTS_AUX_INDEX_TABLE_NUM_COLS 5

#define	FTS_DELETED_TABLE_COL_LEN 8
	DELETED_TABLE(doc_id BIGINT UNSIGNED) More...

#define	FTS_CONFIG_TABLE_KEY_COL_LEN 50
	CONFIG_TABLE(key CHAR(50), value CHAR(200)) More...

#define	FTS_CONFIG_TABLE_VALUE_COL_LEN 200

#define	FTS_INDEX_WORD_LEN FTS_MAX_WORD_LEN

#define	FTS_INDEX_FIRST_DOC_ID_LEN 8

#define	FTS_INDEX_LAST_DOC_ID_LEN 8

#define	FTS_INDEX_DOC_COUNT_LEN 4

#define	FTS_INDEX_ILIST_LEN 0

#define	FTS_MAX_NESTED_EXP 31

#define	FTS_INIT_FTS_TABLE(fts_table, m_suffix, m_type, m_table)
	Initialize the "fts_table" for internal query into FTS auxiliary tables. More...

#define	FTS_INIT_INDEX_TABLE(fts_table, m_suffix, m_type, m_index)

#define	STOPWORD_NOT_INIT 0x1
	status bits for fts_stopword_t status field. More...

#define	STOPWORD_OFF 0x2

#define	STOPWORD_FROM_DEFAULT 0x4

#define	STOPWORD_USER_TABLE 0x8

#define	fts_que_graph_free(graph)

Typedefs
typedef uint64_t	doc_id_t
	Document id type. More...

typedef float	fts_rank_t
	FTS rank type, which will be between 0 . More...

typedef unsigned short	ib_uc_t
	Since MySQL's character set support for Unicode is woefully inadequate (it supports basic operations like isalpha etc. More...

typedef enum fts_status	fts_status_t

Enumerations
enum	fts_row_state { FTS_INSERT = 0 , FTS_MODIFY , FTS_DELETE , FTS_NOTHING , FTS_INVALID }
	Type of a row during a transaction. More...

enum	fts_table_type_t { FTS_INDEX_TABLE , FTS_COMMON_TABLE , FTS_OBSOLETED_TABLE }
	The FTS table types. More...

enum	fts_status { BG_THREAD_STOP = 1 , BG_THREAD_READY = 2 , ADD_THREAD_STARTED = 4 , ADDED_TABLE_SYNCED = 8 }

Functions
fts_cache_t *	fts_cache_create (dict_table_t *table)
	Create a FTS cache. More...

fts_index_cache_t *	fts_cache_index_cache_create (dict_table_t table, dict_index_t index)
	Create a FTS index cache. More...

void	fts_cache_index_cache_remove (dict_table_t table, dict_index_t index)
	Remove a FTS index cache. More...

dberr_t	fts_get_next_doc_id (const dict_table_t table, doc_id_t doc_id)
	Get the next available document id. More...

void	fts_update_next_doc_id (trx_t trx, const dict_table_t table, const char *table_name, doc_id_t doc_id)
	Update the next and last Doc ID in the CONFIG table to be the input "doc_id" value (+ 1). More...

dberr_t	fts_create_doc_id (dict_table_t table, dtuple_t row, mem_heap_t *heap)
	Create a new document id. More...

fts_doc_ids_t *	fts_doc_ids_create (void)
	Create a new fts_doc_ids_t. More...

void	fts_doc_ids_free (fts_doc_ids_t *doc_ids)
	Free a fts_doc_ids_t. More...

void	fts_trx_add_op (trx_t trx, dict_table_t table, doc_id_t doc_id, fts_row_state state, ib_vector_t *fts_indexes)
	Notify the FTS system about an operation on an FTS-indexed table. More...

void	fts_trx_free (fts_trx_t *fts_trx)
	Free an FTS trx. More...

bool	fts_check_common_tables_exist (const dict_table_t *table)
	Check if common tables already exist. More...

dberr_t	fts_create_common_tables (trx_t trx, const dict_table_t table, const char *name, bool skip_doc_id_index)
	Creates the common auxiliary tables needed for supporting an FTS index on the given table. More...

dberr_t	fts_create_index_tables (trx_t trx, dict_index_t index)
	Creates the column specific ancillary tables needed for supporting an FTS index on the given table. More...

dberr_t	fts_create_index_tables_low (trx_t trx, dict_index_t index, const char *table_name, table_id_t table_id)
	Create auxiliary index tables for an FTS index. More...

void	fts_add_doc_id_column (dict_table_t table, mem_heap_t heap)
	Add the FTS document id hidden column. More...

dberr_t	fts_drop_tables (trx_t trx, dict_table_t table, aux_name_vec_t *aux_vec)
	Drops the ancillary tables needed for supporting an FTS index on a given table. More...

dberr_t	fts_lock_all_aux_tables (THD thd, dict_table_t table)
	Lock all FTS AUX tables (for dropping table) More...

bool	fts_drop_dd_tables (const aux_name_vec_t *aux_vec, bool file_per_table)
	Drop FTS AUX table DD table objects in vector. More...

void	fts_free_aux_names (aux_name_vec_t *aux_vec)
	Free FTS AUX table names in vector. More...

dberr_t	fts_commit (trx_t *trx)
	The given transaction is about to be committed; do whatever is necessary from the FTS system's POV. More...

dberr_t	fts_query (trx_t trx, dict_index_t index, uint flags, const byte query_str, ulint query_len, fts_result_t *result, ulonglong limit)
	FTS Query entry point. More...

float	fts_retrieve_ranking (fts_result_t *result, doc_id_t doc_id)
	Retrieve the FTS Relevance Ranking result for doc with doc_id. More...

void	fts_query_sort_result_on_rank (fts_result_t *result)
	FTS Query sort result, returned by fts_query() on fts_ranking_t::rank. More...

void	fts_query_free_result (fts_result_t *result)
	FTS Query free result, returned by fts_query(). More...

doc_id_t	fts_get_doc_id_from_row (dict_table_t table, dtuple_t row)
	Extract the doc id from the FTS hidden column. More...

doc_id_t	fts_get_doc_id_from_rec (dict_table_t table, const rec_t rec, const dict_index_t index, mem_heap_t heap)
	Extract the doc id from the record that belongs to index. More...

doc_id_t	fts_update_doc_id (dict_table_t table, upd_field_t ufield, doc_id_t *next_doc_id)
	Add new fts doc id to the update vector. More...

void	fts_startup (void)
	FTS initialize. More...

fts_t *	fts_create (dict_table_t *table)
	Create an instance of fts_t. More...

void	fts_free (dict_table_t *table)
	Free the FTS resources. More...

dberr_t	fts_optimize_table (dict_table_t *table)
	Run OPTIMIZE on the given table. More...

void	fts_optimize_init (void)
	Startup the optimize thread and create the work queue. More...

dberr_t	fts_drop_index_tables (trx_t trx, dict_index_t index, aux_name_vec_t *aux_vec)
	Since we do a horizontal split on the index table, we need to drop all the split tables. More...

dberr_t	fts_empty_common_tables (trx_t trx, dict_table_t table)
	Empty all common talbes. More...

void	fts_optimize_remove_table (dict_table_t *table)
	Remove the table from the OPTIMIZER's list. More...

void	fts_optimize_shutdown ()
	Shutdown fts optimize thread. More...

void	fts_optimize_request_sync_table (dict_table_t *table)
	Send sync fts cache for the table. More...

void	fts_savepoint_take (fts_trx_t fts_trx, const char name)
	Take a FTS savepoint. More...

void	fts_savepoint_laststmt_refresh (trx_t *trx)
	Refresh last statement savepoint. More...

void	fts_savepoint_release (trx_t trx, const char name)
	Release the savepoint data identified by name. More...

void	fts_cache_clear (fts_cache_t *cache)
	Clear cache. More...

void	fts_cache_init (fts_cache_t *cache)
	Initialize things in cache. More...

void	fts_savepoint_rollback (trx_t trx, const char name)
	Rollback to and including savepoint identified by name. More...

void	fts_savepoint_rollback_last_stmt (trx_t *trx)
	Rollback to and including savepoint identified by name. More...

char *	fts_get_parent_table_name (const char *aux_table_name, ulint aux_table_len)

dberr_t	fts_sync_table (dict_table_t *table, bool unlock_cache, bool wait, bool has_dict)
	Run SYNC on the table, i.e., write out data from the cache to the FTS auxiliary INDEX table and clear the cache at the end. More...

CHARSET_INFO *	fts_index_get_charset (dict_index_t *index)
	Create an FTS index cache. More...

doc_id_t	fts_init_doc_id (const dict_table_t *table)
	Get the initial Doc ID by consulting the CONFIG table. More...

int	innobase_fts_text_cmp (const void cs, const void p1, const void *p2)
	Compare two character string according to their charset. More...

size_t	innobase_fts_casedn_str (CHARSET_INFO cs, char src, size_t src_len, char *dst, size_t dst_len)
	Makes all characters in a string lower case. More...

int	innobase_fts_text_cmp_prefix (const void cs, const void p1, const void *p2)
	Compare two character string according to their charset. More...

ulint	innobase_mysql_fts_get_token (CHARSET_INFO charset, const byte start, const byte end, fts_string_t token)
	Get the next token from the given string and store it in *token. More...

bool	innobase_fts_drop_dd_table (const char *name, bool file_per_table)
	Drop dd table & tablespace for fts aux table. More...

ulint	fts_get_token_size (const CHARSET_INFO cs, const char token, ulint len)
	Get token char size by charset. More...

int	fts_tokenize_document_internal (MYSQL_FTPARSER_PARAM param, char doc, int len)
	FULLTEXT tokenizer internal in MYSQL_FTPARSER_SIMPLE_MODE. More...

ulint	fts_get_rows_count (fts_table_t *fts_table)
	Fetch COUNT(*) from specified table. More...

doc_id_t	fts_get_max_doc_id (dict_table_t *table)
	Get maximum Doc ID in a table if index "FTS_DOC_ID_INDEX" exists. More...

CHARSET_INFO *	fts_valid_stopword_table (const char *stopword_table_name)
	Check whether user supplied stopword table exists and is of the right format. More...

bool	fts_load_stopword (const dict_table_t table, trx_t trx, const char global_stopword_table, const char session_stopword_table, bool stopword_is_on, bool reload)
	This function loads specified stopword into FTS cache. More...

dberr_t	fts_table_fetch_doc_ids (trx_t trx, fts_table_t fts_table, fts_doc_ids_t *doc_ids)
	Read the rows from the FTS index. More...

bool	fts_init_index (dict_table_t *table, bool has_cache_lock)
	This function brings FTS index in sync when FTS index is first used. More...

void	fts_add_index (dict_index_t index, dict_table_t table)
	Add a newly create index in FTS cache. More...

dberr_t	fts_drop_index (dict_table_t table, dict_index_t index, trx_t trx, aux_name_vec_t aux_vec, bool adding_another=false)
	Drop auxiliary tables related to an FTS index. More...

dberr_t	fts_rename_aux_tables (dict_table_t table, const char new_name, trx_t *trx, bool replay)
	Rename auxiliary tables for all fts index for a table. More...

bool	fts_check_cached_index (dict_table_t *table)
	Check indexes in the fts->indexes is also present in index cache and table->indexes list. More...

void	fts_add_doc_from_tuple (fts_trx_table_t ftt, doc_id_t doc_id, const dtuple_t tuple)
	Fetch the document from tuple, tokenize the text data and insert the text data into fts auxiliary table and its cache. More...

fts_trx_t *	fts_trx_create (trx_t *trx)
	Create an FTS trx. More...

bool	fts_is_aux_table_name (fts_aux_table_t table, const char name, ulint len)
	Check if a table is an FTS auxiliary table name. More...

void	fts_freeze_aux_tables (const dict_table_t *table)
	Freeze all auiliary tables to be not evictable if exist, with dict_mutex held. More...

void	fts_detach_aux_tables (const dict_table_t *table, bool dict_locked)
	Allow all the auxiliary tables of specified base table to be evictable if they exist, if not exist just ignore. More...

bool	fts_create_common_dd_tables (const dict_table_t *table)
	Update DD system table for auxiliary common tables for an FTS index. More...

dberr_t	fts_create_index_dd_tables (dict_table_t *table)
	Check if a table has FTS index needs to have its auxiliary index tables' metadata updated in DD. More...

dberr_t	fts_upgrade_aux_tables (dict_table_t *table)
	Upgrade FTS AUX Tables. More...

dberr_t	fts_upgrade_rename (const dict_table_t *table, bool rollback)
	Rename FTS AUX tablespace name from 8.0 format to 5.7 format. More...

Variables
constexpr size_t	FTS_NUM_AUX_INDEX = 6
	The number of FTS index partitions for a fulltext index. More...

constexpr size_t	FTS_NUM_AUX_COMMON = 5
	The number of FTS AUX common table for a fulltext index. More...

const char *	FTS_PREFIX
	FTS auxiliary table prefix that are common to all FT indexes. More...

const char *	FTS_SUFFIX_BEING_DELETED

const char *	FTS_SUFFIX_BEING_DELETED_CACHE

const char *	FTS_SUFFIX_CONFIG

const char *	FTS_SUFFIX_DELETED

const char *	FTS_SUFFIX_DELETED_CACHE

const char *	FTS_PREFIX_5_7
	FTS auxiliary table prefix that are common to all FT indexes. More...

const char *	FTS_SUFFIX_CONFIG_5_7

ulong	fts_num_word_optimize
	Variable specifying the number of word to optimize for each optimize table call. More...

bool	fts_enable_diag_print
	Variable specifying whether we do additional FTS diagnostic printout in the log. More...

const char *	fts_default_stopword []
	InnoDB default stopword list: There are different versions of stopwords, the stop words listed below comes from "Google Stopword" list. More...

ulong	fts_max_cache_size
	Variable specifying the maximum FTS cache size for each table. More...

ulong	fts_max_total_cache_size
	Variable specifying the total memory allocated for FTS cache. More...

ulong	fts_result_cache_limit
	Variable specifying the FTS result cache limit for each query. More...

ulong	fts_max_token_size
	Variable specifying the maximum FTS max token size. More...

ulong	fts_min_token_size
	Variable specifying the minimum FTS max token size. More...

bool	fts_need_sync
	Whether the total memory used for FTS cache is exhausted, and we will need a sync to free some memory. More...

char *	fts_internal_tbl_name
	Variable specifying the table that has Fulltext index to display its content through information schema table. More...

Detailed Description

Full text search header file.

Created 2011/09/02 Sunny Bains

Macro Definition Documentation

◆ FTS_AUX_INDEX_TABLE_NUM_COLS

#define FTS_AUX_INDEX_TABLE_NUM_COLS 5

◆ fts_bind_doc_id

#define fts_bind_doc_id	(	i,
		n,
		v
	)	pars_info_bind_int8_literal(i, n, v)

Bind the doc id to a variable.

◆ FTS_BOOL

#define FTS_BOOL 1

◆ FTS_COMMON_TABLE_IND_NAME

#define FTS_COMMON_TABLE_IND_NAME "FTS_COMMON_TABLE_IND"

◆ FTS_CONFIG_TABLE_KEY_COL_LEN

#define FTS_CONFIG_TABLE_KEY_COL_LEN 50

CONFIG_TABLE(key CHAR(50), value CHAR(200))

◆ FTS_CONFIG_TABLE_NUM_COLS

#define FTS_CONFIG_TABLE_NUM_COLS 2

◆ FTS_CONFIG_TABLE_VALUE_COL_LEN

#define FTS_CONFIG_TABLE_VALUE_COL_LEN 200

◆ FTS_DELETED_TABLE_COL_LEN

#define FTS_DELETED_TABLE_COL_LEN 8

DELETED_TABLE(doc_id BIGINT UNSIGNED)

◆ FTS_DELETED_TABLE_NUM_COLS

#define FTS_DELETED_TABLE_NUM_COLS 1

Number of columns in FTS AUX Tables.

◆ FTS_DOC_ID_COL_NAME

#define FTS_DOC_ID_COL_NAME "FTS_DOC_ID"

FTS hidden column that is used to map to and from the row.

◆ FTS_DOC_ID_FORMAT

#define FTS_DOC_ID_FORMAT IB_ID_FMT

doc_id_t printf format

◆ FTS_DOC_ID_INDEX_NAME

#define FTS_DOC_ID_INDEX_NAME "FTS_DOC_ID_INDEX"

The name of the index created by FTS.

◆ FTS_DOC_ID_INDEX_NAME_LEN

#define FTS_DOC_ID_INDEX_NAME_LEN 16

◆ FTS_DOC_ID_LEN

#define FTS_DOC_ID_LEN 8

Doc ID is a 8 byte value.

◆ FTS_DOC_ID_MAX_STEP

#define FTS_DOC_ID_MAX_STEP 65535

Threshold to avoid exhausting of doc ids.

Consecutive doc id difference should not exceed FTS_DOC_ID_MAX_STEP

◆ FTS_EXPAND

#define FTS_EXPAND 4

◆ FTS_INDEX_DOC_COUNT_LEN

#define FTS_INDEX_DOC_COUNT_LEN 4

◆ FTS_INDEX_FIRST_DOC_ID_LEN

#define FTS_INDEX_FIRST_DOC_ID_LEN 8

◆ FTS_INDEX_ILIST_LEN

#define FTS_INDEX_ILIST_LEN 0

◆ FTS_INDEX_LAST_DOC_ID_LEN

#define FTS_INDEX_LAST_DOC_ID_LEN 8

◆ FTS_INDEX_TABLE_IND_NAME

#define FTS_INDEX_TABLE_IND_NAME "FTS_INDEX_TABLE_IND"

◆ FTS_INDEX_WORD_LEN

#define FTS_INDEX_WORD_LEN FTS_MAX_WORD_LEN

◆ FTS_INIT_FTS_TABLE

#define FTS_INIT_FTS_TABLE	(	fts_table,
		m_suffix,
		m_type,
		m_table
	)

Value:

  do {                                                           \
    (fts_table)->suffix = m_suffix;                              \
    (fts_table)->type = m_type;                                  \
    (fts_table)->table_id = m_table->id;                         \
    (fts_table)->parent = m_table->name.m_name;                  \
    (fts_table)->table = m_table;                                \
  } while (0);

Initialize the "fts_table" for internal query into FTS auxiliary tables.

◆ FTS_INIT_INDEX_TABLE

#define FTS_INIT_INDEX_TABLE	(	fts_table,
		m_suffix,
		m_type,
		m_index
	)

Value:

  do {                                                             \
    (fts_table)->suffix = m_suffix;                                \
    (fts_table)->type = m_type;                                    \
    (fts_table)->table_id = m_index->table->id;                    \
    (fts_table)->parent = m_index->table->name.m_name;             \
    (fts_table)->table = m_index->table;                           \
    (fts_table)->index_id = m_index->id;                           \
  } while (0);

◆ FTS_MAX_NESTED_EXP

#define FTS_MAX_NESTED_EXP 31

◆ FTS_MAX_WORD_LEN

#define FTS_MAX_WORD_LEN HA_FT_MAXBYTELEN

Maximum possible Fulltext word length.

◆ FTS_MAX_WORD_LEN_IN_CHAR

#define FTS_MAX_WORD_LEN_IN_CHAR HA_FT_MAXCHARLEN

Maximum possible Fulltext word length (in characters)

◆ FTS_NL

#define FTS_NL 0

Defines for FTS query mode, they have the same values as those defined in mysql file ft_global.h.

◆ FTS_NO_RANKING

#define FTS_NO_RANKING 8

◆ FTS_NULL_DOC_ID

#define FTS_NULL_DOC_ID 0

"NULL" value of a document id.

◆ FTS_NUM_FIELDS_SORT

#define FTS_NUM_FIELDS_SORT 3

The number of fields to sort when we build FT index with FIC.

Three fields are sort: (word, doc_id, position)

◆ FTS_OPT_RANKING

#define FTS_OPT_RANKING 64

◆ FTS_OPTIMIZE_THRESHOLD

#define FTS_OPTIMIZE_THRESHOLD 10000000

Threshold where our optimize thread automatically kicks in.

◆ FTS_PHRASE

#define FTS_PHRASE 32

◆ FTS_PROXIMITY

#define FTS_PROXIMITY 16

◆ fts_que_graph_free

#define fts_que_graph_free ( graph )

Value:

  do {                            \
    que_graph_free(graph);        \
  } while (0)

◆ fts_read_doc_id

#define fts_read_doc_id ( s ) mach_read_from_8(s)

Read a document id to internal format.

◆ FTS_SORTED

#define FTS_SORTED 2

◆ fts_write_doc_id

#define fts_write_doc_id	(	d,
		s
	)	mach_write_to_8(d, s)

Convert document id to the InnoDB (BIG ENDIAN) storage format.

◆ MAX_DOC_ID_OPT_VAL

#define MAX_DOC_ID_OPT_VAL 1073741824

Maximum number of rows in a table, smaller than which, we will optimize using a 4 byte Doc ID for FIC merge sort to reduce sort size.

◆ STOPWORD_FROM_DEFAULT

#define STOPWORD_FROM_DEFAULT 0x4

◆ STOPWORD_NOT_INIT

#define STOPWORD_NOT_INIT 0x1

status bits for fts_stopword_t status field.

◆ STOPWORD_OFF

#define STOPWORD_OFF 0x2

◆ STOPWORD_USER_TABLE

#define STOPWORD_USER_TABLE 0x8

Typedef Documentation

◆ doc_id_t

typedef uint64_t doc_id_t

Document id type.

◆ fts_rank_t

typedef float fts_rank_t

FTS rank type, which will be between 0 .

. 1 inclusive

◆ fts_status_t

typedef enum fts_status fts_status_t

◆ ib_uc_t

typedef unsigned short ib_uc_t

Since MySQL's character set support for Unicode is woefully inadequate (it supports basic operations like isalpha etc.

only for 8-bit characters), we have to implement our own. We use UTF-16 without surrogate processing as our in-memory format. This typedef is a single such character.

Enumeration Type Documentation

◆ fts_row_state

enum fts_row_state

Type of a row during a transaction.

FTS_NOTHING means the row can be forgotten from the FTS system's POV, FTS_INVALID is an internal value used to mark invalid states.

NOTE: Do not change the order or value of these, fts_trx_row_get_new_state depends on them being exactly as they are.

Enumerator
FTS_INSERT
FTS_MODIFY
FTS_DELETE
FTS_NOTHING
FTS_INVALID

◆ fts_status

enum fts_status

Enumerator
BG_THREAD_STOP	true if the FTS background thread has finished reading the ADDED table, meaning more items can be added to the table.
BG_THREAD_READY	true if the FTS background thread is ready
ADD_THREAD_STARTED	true if the FTS add thread has started
ADDED_TABLE_SYNCED	true if the ADDED table record is sync-ed after crash recovery

◆ fts_table_type_t

enum fts_table_type_t

The FTS table types.

Enumerator
FTS_INDEX_TABLE	FTS auxiliary table that is specific to a particular FTS index on a table.
FTS_COMMON_TABLE	FTS auxiliary table that is common for all FTS index on a table.
FTS_OBSOLETED_TABLE	FTS obsoleted tables like DOC_ID, ADDED, STOPWORDS.

Function Documentation

◆ fts_add_doc_from_tuple()

void fts_add_doc_from_tuple	(	fts_trx_table_t *	ftt,
		doc_id_t	doc_id,
		const dtuple_t *	tuple
	)

Fetch the document from tuple, tokenize the text data and insert the text data into fts auxiliary table and its cache.

Moreover this tuple fields doesn't contain any information about externally stored field. This tuple contains data directly converted from mysql.

Parameters

[in]	ftt	FTS transaction table
[in]	doc_id	doc id
[in]	tuple	tuple from where data can be retrieved and tuple should be arranged in table schema order.

◆ fts_add_doc_id_column()

void fts_add_doc_id_column	(	dict_table_t *	table,
		mem_heap_t *	heap
	)

Add the FTS document id hidden column.

Parameters

[in,out]	table	Table with FTS index
[in]	heap	Temporary memory heap, or NULL

◆ fts_add_index()

void fts_add_index	(	dict_index_t *	index,
		dict_table_t *	table
	)

Add a newly create index in FTS cache.

table

Add a newly create index in FTS cache.

Parameters

index	FTS index to be added
table	table

◆ fts_cache_clear()

void fts_cache_clear ( fts_cache_t * cache )

Clear cache.

Parameters

[in,out] cache fts cache

◆ fts_cache_create()

fts_cache_t * fts_cache_create ( dict_table_t * table )

Create a FTS cache.

table owns the FTS cache

Parameters

table in: table owns the FTS cache

◆ fts_cache_index_cache_create()

fts_index_cache_t * fts_cache_index_cache_create	(	dict_table_t *	table,
		dict_index_t *	index
	)

Create a FTS index cache.

Returns: Index Cache in: FTS index

Create a FTS index cache.

Returns: Index Cache

Parameters

table	in: table with FTS index
index	in: FTS index

◆ fts_cache_index_cache_remove()

void fts_cache_index_cache_remove	(	dict_table_t *	table,
		dict_index_t *	index
	)

Remove a FTS index cache.

Parameters

[in]	table	table with FTS index
[in]	index	FTS index

◆ fts_cache_init()

void fts_cache_init ( fts_cache_t * cache )

Initialize things in cache.

in: cache

Initialize things in cache.

Parameters

cache in: cache to initialize

◆ fts_check_cached_index()

bool fts_check_cached_index ( dict_table_t * table )

Check indexes in the fts->indexes is also present in index cache and table->indexes list.

Returns: true if all indexes match in: Table where indexes are dropped; true if all indexes match

Parameters

table in: Table where indexes are dropped

◆ fts_check_common_tables_exist()

bool fts_check_common_tables_exist ( const dict_table_t * table )

Check if common tables already exist.

Parameters

[in] table table with fts index

Returns: true on success, false on failure

◆ fts_commit()

dberr_t fts_commit ( trx_t * trx )

The given transaction is about to be committed; do whatever is necessary from the FTS system's POV.

Returns: DB_SUCCESS or error code in: transaction; DB_SUCCESS or error code

Parameters

trx	in: transaction

◆ fts_create()

fts_t * fts_create ( dict_table_t * table )

Create an instance of fts_t.

Returns: instance of fts_t out: table with FTS indexes; instance of fts_t

Parameters

table in/out: table with FTS indexes

◆ fts_create_common_dd_tables()

bool fts_create_common_dd_tables ( const dict_table_t * table )

Update DD system table for auxiliary common tables for an FTS index.

Parameters

[in] table dict table instance

Returns: true on success, false on failure

◆ fts_create_common_tables()

dberr_t fts_create_common_tables	(	trx_t *	trx,
		const dict_table_t *	table,
		const char *	name,
		bool	skip_doc_id_index
	)

Creates the common auxiliary tables needed for supporting an FTS index on the given table.

row_mysql_lock_data_dictionary must have been called before this. The following tables are created. CREATE TABLE $FTS_PREFIX_DELETED (doc_id BIGINT UNSIGNED, UNIQUE CLUSTERED INDEX on doc_id) CREATE TABLE $FTS_PREFIX_DELETED_CACHE (doc_id BIGINT UNSIGNED, UNIQUE CLUSTERED INDEX on doc_id) CREATE TABLE $FTS_PREFIX_BEING_DELETED (doc_id BIGINT UNSIGNED, UNIQUE CLUSTERED INDEX on doc_id) CREATE TABLE $FTS_PREFIX_BEING_DELETED_CACHE (doc_id BIGINT UNSIGNED, UNIQUE CLUSTERED INDEX on doc_id) CREATE TABLE $FTS_PREFIX_CONFIG (key CHAR(50), value CHAR(200), UNIQUE CLUSTERED INDEX on key)

Parameters

[in,out]	trx	transaction
[in]	table	table with FTS index
[in]	name	table name normalized
[in]	skip_doc_id_index	Skip index on doc id

Returns: DB_SUCCESS if succeed

◆ fts_create_doc_id()

dberr_t fts_create_doc_id	(	dict_table_t *	table,
		dtuple_t *	row,
		mem_heap_t *	heap
	)

Create a new document id.

Parameters

[in]	table	Row is of this table.
[in,out]	row	Add doc id value to this row. This is the current row that is being inserted.
[in]	heap	Memory heap on which the doc_id object will be created.

Returns: DB_SUCCESS if all went well else error

◆ fts_create_index_dd_tables()

dberr_t fts_create_index_dd_tables ( dict_table_t * table )

Check if a table has FTS index needs to have its auxiliary index tables' metadata updated in DD.

Parameters

[in,out] table table to check

Returns: DB_SUCCESS or error code

◆ fts_create_index_tables()

dberr_t fts_create_index_tables	(	trx_t *	trx,
		dict_index_t *	index
	)

Creates the column specific ancillary tables needed for supporting an FTS index on the given table.

row_mysql_lock_data_dictionary must have been called before this.

All FTS AUX Index tables have the following schema. CREATE TABLE $FTS_PREFIX_INDEX_[1-6]( word VARCHAR(FTS_MAX_WORD_LEN), first_doc_id INT NOT NULL, last_doc_id UNSIGNED NOT NULL, doc_count UNSIGNED INT NOT NULL, ilist VARBINARY NOT NULL, UNIQUE CLUSTERED INDEX ON (word, first_doc_id))

Parameters

[in,out]	trx	transaction
[in]	index	index instance

Returns: DB_SUCCESS or error code

◆ fts_create_index_tables_low()

dberr_t fts_create_index_tables_low	(	trx_t *	trx,
		dict_index_t *	index,
		const char *	table_name,
		table_id_t	table_id
	)

Create auxiliary index tables for an FTS index.

Parameters

[in,out]	trx	transaction
[in]	index	the index instance
[in]	table_name	table name
[in]	table_id	the table id

Returns: DB_SUCCESS or error code

◆ fts_detach_aux_tables()

void fts_detach_aux_tables	(	const dict_table_t *	table,
		bool	dict_locked
	)

Allow all the auxiliary tables of specified base table to be evictable if they exist, if not exist just ignore.

Parameters

[in]	table	InnoDB table object
[in]	dict_locked	True if we have dict_sys mutex

◆ fts_doc_ids_create()

fts_doc_ids_t * fts_doc_ids_create ( void )

Create a new fts_doc_ids_t.

Returns: new fts_doc_ids_t.; new fts_doc_ids_t

◆ fts_doc_ids_free()

void fts_doc_ids_free ( fts_doc_ids_t * doc_ids )

Free a fts_doc_ids_t.

in: doc_ids to free

◆ fts_drop_dd_tables()

bool fts_drop_dd_tables	(	const aux_name_vec_t *	aux_vec,
		bool	file_per_table
	)

Drop FTS AUX table DD table objects in vector.

Parameters

[in]	aux_vec	aux table name vector
[in]	file_per_table	whether file per table

Returns: true on success, false on failure.

◆ fts_drop_index()

dberr_t fts_drop_index	(	dict_table_t *	table,
		dict_index_t *	index,
		trx_t *	trx,
		aux_name_vec_t *	aux_vec,
		bool	adding_another
	)

Drop auxiliary tables related to an FTS index.

Parameters

[in]	table	Table where indexes are dropped
[in]	index	Index to be dropped
[in]	trx	Transaction for the drop
[in,out]	aux_vec	Aux table name vector
[in]	adding_another	Another FTS index is to be added as part of the same transaction

Returns: DB_SUCCESS or error number

◆ fts_drop_index_tables()

dberr_t fts_drop_index_tables	(	trx_t *	trx,
		dict_index_t *	index,
		aux_name_vec_t *	aux_vec
	)

Since we do a horizontal split on the index table, we need to drop all the split tables.

Parameters

[in]	trx	transaction
[in]	index	fts index
[out]	aux_vec	dropped table names vector

Returns: DB_SUCCESS or error code

◆ fts_drop_tables()

dberr_t fts_drop_tables	(	trx_t *	trx,
		dict_table_t *	table,
		aux_name_vec_t *	aux_vec
	)

Drops the ancillary tables needed for supporting an FTS index on a given table.

row_mysql_lock_data_dictionary must have been called before this.

Parameters

[in,out]	trx	transaction
[in]	table	table has the fts index
[in,out]	aux_vec	fts aux table name vector

Returns: DB_SUCCESS or error code

◆ fts_empty_common_tables()

dberr_t fts_empty_common_tables	(	trx_t *	trx,
		dict_table_t *	table
	)

Empty all common talbes.

Parameters

[in,out]	trx	transaction
[in]	table	dict table

Returns: DB_SUCCESS or error code.

◆ fts_free()

void fts_free ( dict_table_t * table )

Free the FTS resources.

in/out: table with FTS indexes

Parameters

table in/out: table with FTS indexes

◆ fts_free_aux_names()

void fts_free_aux_names ( aux_name_vec_t * aux_vec )

Free FTS AUX table names in vector.

Parameters

[in] aux_vec aux table name vector

◆ fts_freeze_aux_tables()

void fts_freeze_aux_tables ( const dict_table_t * table )

Freeze all auiliary tables to be not evictable if exist, with dict_mutex held.

Parameters

[in] table InnoDB table object

◆ fts_get_doc_id_from_rec()

doc_id_t fts_get_doc_id_from_rec	(	dict_table_t *	table,
		const rec_t *	rec,
		const dict_index_t *	index,
		mem_heap_t *	heap
	)

Extract the doc id from the record that belongs to index.

Parameters

[in]	table	table
[in]	rec	record contains FTS_DOC_ID
[in]	index	index of rec
[in]	heap	heap memory

Returns: doc id that was extracted from rec

◆ fts_get_doc_id_from_row()

doc_id_t fts_get_doc_id_from_row	(	dict_table_t *	table,
		dtuple_t *	row
	)

Extract the doc id from the FTS hidden column.

in: row whose FTS doc id we want to extract.

Returns: doc id that was extracted from rec

Parameters

table	in: table
row	in: row whose FTS doc id we want to extract.

◆ fts_get_max_doc_id()

doc_id_t fts_get_max_doc_id ( dict_table_t * table )

Get maximum Doc ID in a table if index "FTS_DOC_ID_INDEX" exists.

Returns: max Doc ID or 0 if index "FTS_DOC_ID_INDEX" does not exist in: user table; max Doc ID or 0 if index "FTS_DOC_ID_INDEX" does not exist

Parameters

table in: user table

◆ fts_get_next_doc_id()

dberr_t fts_get_next_doc_id	(	const dict_table_t *	table,
		doc_id_t *	doc_id
	)

Get the next available document id.

This function creates a new transaction to generate the document id.

Returns: DB_SUCCESS if OK out: new document id; DB_SUCCESS if OK

Parameters

table	in: table
doc_id	out: new document id

◆ fts_get_parent_table_name()

char * fts_get_parent_table_name	(	const char *	aux_table_name,
		ulint	aux_table_len
	)

◆ fts_get_rows_count()

ulint fts_get_rows_count ( fts_table_t * fts_table )

Fetch COUNT(*) from specified table.

Returns: the number of rows in the table in: fts table to read; the number of rows in the table

Parameters

fts_table in: fts table to read

◆ fts_get_token_size()

ulint fts_get_token_size	(	const CHARSET_INFO *	cs,
		const char *	token,
		ulint	len
	)

Get token char size by charset.

Returns: the number of token char size in: token length; token size

Parameters

cs	in: Character set
token	in: token
len	in: token length

◆ fts_index_get_charset()

CHARSET_INFO * fts_index_get_charset ( dict_index_t * index )

Create an FTS index cache.

in: FTS index

Parameters

index in: FTS index

◆ fts_init_doc_id()

doc_id_t fts_init_doc_id ( const dict_table_t * table )

Get the initial Doc ID by consulting the CONFIG table.

Returns: initial Doc ID in: table; initial Doc ID

Parameters

table in: table

◆ fts_init_index()

bool fts_init_index	(	dict_table_t *	table,
		bool	has_cache_lock
	)

This function brings FTS index in sync when FTS index is first used.

There are documents that have not yet sync-ed to auxiliary tables from last server abnormally shutdown, we will need to bring such document into FTS cache before any further operations

Returns: true if all OK in: Whether we already have cache lock

There are documents that have not yet sync-ed to auxiliary tables from last server abnormally shutdown, we will need to bring such document into FTS cache before any further operations

Returns: true if all OK

Parameters

table	in: Table with FTS
has_cache_lock	in: Whether we already have cache lock

◆ fts_is_aux_table_name()

bool fts_is_aux_table_name	(	fts_aux_table_t *	table,
		const char *	name,
		ulint	len
	)

Check if a table is an FTS auxiliary table name.

Parameters

[out]	table	FTS table info
[in]	name	Table name
[in]	len	Length of table name

Returns: true if the name matches an auxiliary table name pattern

◆ fts_load_stopword()

bool fts_load_stopword	(	const dict_table_t *	table,
		trx_t *	trx,
		const char *	global_stopword_table,
		const char *	session_stopword_table,
		bool	stopword_is_on,
		bool	reload
	)

This function loads specified stopword into FTS cache.

Returns: true if success in: Whether it is during reload of FTS table

This function loads specified stopword into FTS cache.

It also records/fetches stopword configuration to/from FTS configure table, depending on whether we are creating or reloading the FTS.

Returns: true if load operation is successful

Parameters

table	in: Table with FTS
trx	in: Transactions
global_stopword_table	in: Global stopword table name
session_stopword_table	in: Session stopword table name
stopword_is_on	in: Whether stopword option is turned on/off
reload	in: Whether it is for reloading FTS table

◆ fts_lock_all_aux_tables()

dberr_t fts_lock_all_aux_tables	(	THD *	thd,
		dict_table_t *	table
	)

Lock all FTS AUX tables (for dropping table)

Parameters

[in]	thd	thread locking the AUX table
[in]	table	table has the fts index

Returns: DB_SUCCESS or error code

◆ fts_optimize_init()

void fts_optimize_init ( void )

Startup the optimize thread and create the work queue.

◆ fts_optimize_remove_table()

void fts_optimize_remove_table ( dict_table_t * table )

Remove the table from the OPTIMIZER's list.

We do wait for acknowledgement from the consumer of the message. in: table to remove

We do wait for acknowledgement from the consumer of the message.

Parameters

table in: table to remove

◆ fts_optimize_request_sync_table()

void fts_optimize_request_sync_table ( dict_table_t * table )

Send sync fts cache for the table.

Parameters

[in] table table to sync

◆ fts_optimize_shutdown()

void fts_optimize_shutdown ( )

Shutdown fts optimize thread.

◆ fts_optimize_table()

dberr_t fts_optimize_table ( dict_table_t * table )

Run OPTIMIZE on the given table.

Returns: DB_SUCCESS if all OK in: table to optimiza; DB_SUCCESS if all OK

Parameters

table in: table to optimize

◆ fts_query()

dberr_t fts_query	(	trx_t *	trx,
		dict_index_t *	index,
		uint	flags,
		const byte *	query_str,
		ulint	query_len,
		fts_result_t **	result,
		ulonglong	limit
	)

FTS Query entry point.

Parameters

[in]	trx	transaction
[in]	index	fts index to search
[in]	flags	FTS search mode
[in]	query_str	FTS query
[in]	query_len	FTS query string len in bytes
[in,out]	result	result doc ids
[in]	limit	limit value

Returns: DB_SUCCESS if successful otherwise error code

◆ fts_query_free_result()

void fts_query_free_result ( fts_result_t * result )

FTS Query free result, returned by fts_query().

in: result instance to free.

Parameters

result in: result instance to free.

◆ fts_query_sort_result_on_rank()

void fts_query_sort_result_on_rank ( fts_result_t * result )

FTS Query sort result, returned by fts_query() on fts_ranking_t::rank.

out: result instance to sort.

Parameters

result out: result instance to sort.

◆ fts_rename_aux_tables()

dberr_t fts_rename_aux_tables	(	dict_table_t *	table,
		const char *	new_name,
		trx_t *	trx,
		bool	replay
	)

Rename auxiliary tables for all fts index for a table.

Returns: DB_SUCCESS or error code Whether in replay stage

This(rename) is due to database name change

Returns: DB_SUCCESS or error code

Parameters

table	in: user Table
new_name	in: new table name
trx	in: transaction
replay	in: Whether in replay stage

◆ fts_retrieve_ranking()

float fts_retrieve_ranking	(	fts_result_t *	result,
		doc_id_t	doc_id
	)

Retrieve the FTS Relevance Ranking result for doc with doc_id.

Returns: the relevance ranking value. in: the interested document doc_id; the relevance ranking value, 0 if no ranking value present.

Parameters

result	in: FTS result structure
doc_id	in: doc_id of the item to retrieve

◆ fts_savepoint_laststmt_refresh()

void fts_savepoint_laststmt_refresh ( trx_t * trx )

Refresh last statement savepoint.

in: transaction

Parameters

trx	in: transaction

◆ fts_savepoint_release()

void fts_savepoint_release	(	trx_t *	trx,
		const char *	name
	)

Release the savepoint data identified by name.

in: savepoint name

All savepoints created after the named savepoint are kept.

Parameters

trx	in: transaction
name	in: savepoint name

◆ fts_savepoint_rollback()

void fts_savepoint_rollback	(	trx_t *	trx,
		const char *	name
	)

Rollback to and including savepoint identified by name.

in: savepoint name

Rollback to and including savepoint identified by name.

Parameters

trx	in: transaction
name	in: savepoint name

◆ fts_savepoint_rollback_last_stmt()

void fts_savepoint_rollback_last_stmt ( trx_t * trx )

Rollback to and including savepoint identified by name.

in: transaction

Rollback to and including savepoint identified by name.

Parameters

trx	in: transaction

◆ fts_savepoint_take()

void fts_savepoint_take	(	fts_trx_t *	fts_trx,
		const char *	name
	)

Take a FTS savepoint.

Parameters

[in]	fts_trx	Fts transaction
[in]	name	Savepoint name

◆ fts_startup()

void fts_startup ( void )

FTS initialize.

◆ fts_sync_table()

dberr_t fts_sync_table	(	dict_table_t *	table,
		bool	unlock_cache,
		bool	wait,
		bool	has_dict
	)

Run SYNC on the table, i.e., write out data from the cache to the FTS auxiliary INDEX table and clear the cache at the end.

Parameters

[in,out]	table	fts table
[in]	unlock_cache	whether unlock cache when write node
[in]	wait	whether wait for existing sync to finish
[in]	has_dict	whether has dict operation lock

Returns: DB_SUCCESS on success, error code on failure.

◆ fts_table_fetch_doc_ids()

dberr_t fts_table_fetch_doc_ids	(	trx_t *	trx,
		fts_table_t *	fts_table,
		fts_doc_ids_t *	doc_ids
	)

Read the rows from the FTS index.

Returns: DB_SUCCESS if OK in: For collecting doc ids

Read the rows from the FTS index.

Returns: DB_SUCCESS or error code

Parameters

trx	in: transaction
fts_table	in: table
doc_ids	in: For collecting doc ids

◆ fts_tokenize_document_internal()

int fts_tokenize_document_internal	(	MYSQL_FTPARSER_PARAM *	param,
		char *	doc,
		int	len
	)

FULLTEXT tokenizer internal in MYSQL_FTPARSER_SIMPLE_MODE.

Returns: 0 if tokenize successfully in: document length

FULLTEXT tokenizer internal in MYSQL_FTPARSER_SIMPLE_MODE.

Refer to 'MYSQL_FTPARSER_PARAM' for more detail.

Returns: always returns 0

Parameters

param	in: parser parameter
doc	in/out: document
len	in: document length

◆ fts_trx_add_op()

void fts_trx_add_op	(	trx_t *	trx,
		dict_table_t *	table,
		doc_id_t	doc_id,
		fts_row_state	state,
		ib_vector_t *	fts_indexes
	)

Notify the FTS system about an operation on an FTS-indexed table.

Parameters

[in]	trx	Innodb transaction
[in]	table	Table
[in]	doc_id	Doc id
[in]	state	State of the row
[in]	fts_indexes	Fts indexes affected (null=all)

◆ fts_trx_create()

fts_trx_t * fts_trx_create ( trx_t * trx )

Create an FTS trx.

Parameters

[in,out] trx InnoDB Transaction

Returns: FTS transaction.

◆ fts_trx_free()

void fts_trx_free ( fts_trx_t * fts_trx )

Free an FTS trx.

in, own: FTS trx

◆ fts_update_doc_id()

doc_id_t fts_update_doc_id	(	dict_table_t *	table,
		upd_field_t *	ufield,
		doc_id_t *	next_doc_id
	)

Add new fts doc id to the update vector.

Parameters

[in]	table	the table that contains the FTS index.
[in,out]	ufield	the fts doc id field in the update vector. No new memory is allocated for this in this function.
[in,out]	next_doc_id	the fts doc id that has been added to the update vector. If 0, a new fts doc id is automatically generated. The memory provided for this argument will be used by the update vector. Ensure that the life time of this memory matches that of the update vector.

Returns: the fts doc id used in the update vector

◆ fts_update_next_doc_id()

void fts_update_next_doc_id	(	trx_t *	trx,
		const dict_table_t *	table,
		const char *	table_name,
		doc_id_t	doc_id
	)

Update the next and last Doc ID in the CONFIG table to be the input "doc_id" value (+ 1).

We would do so after each FTS index build or table truncate in: DOC ID to set

We would do so after each FTS index build or table truncate

Parameters

trx	in/out: transaction
table	in: table
table_name	in: table name, or NULL
doc_id	in: DOC ID to set

◆ fts_upgrade_aux_tables()

dberr_t fts_upgrade_aux_tables ( dict_table_t * table )

Upgrade FTS AUX Tables.

The FTS common and aux tables are renamed because they have table_id in their name. We move table_ids by DICT_MAX_DD_TABLES offset. Aux tables are registered into DD after rename.

Parameters

[in] table InnoDB table object

Returns: DB_SUCCESS or error code

◆ fts_upgrade_rename()

dberr_t fts_upgrade_rename	(	const dict_table_t *	table,
		bool	rollback
	)

Rename FTS AUX tablespace name from 8.0 format to 5.7 format.

This will be done on upgrade failure

Parameters

[in]	table	parent table
[in]	rollback	rollback the rename from 8.0 to 5.7 if true, rename to 5.7 format if false, mark the table as evictable

Returns: DB_SUCCESS on success, DB_ERROR on error

◆ fts_valid_stopword_table()

CHARSET_INFO * fts_valid_stopword_table ( const char * stopword_table_name )

Check whether user supplied stopword table exists and is of the right format.

Returns: the stopword column charset if qualifies in: Stopword table name

Check whether user supplied stopword table exists and is of the right format.

Caller is responsible to hold dictionary locks.

Returns: the stopword column charset if qualifies

Parameters

stopword_table_name in: Stopword table name

◆ innobase_fts_casedn_str()

size_t innobase_fts_casedn_str	(	CHARSET_INFO *	cs,
		char *	src,
		size_t	src_len,
		char *	dst,
		size_t	dst_len
	)

Makes all characters in a string lower case.

Parameters

[in]	cs	Character set
[in]	src	String to put in lower case
[in]	src_len	Input string length
[in]	dst	Buffer for result string
[in]	dst_len	Buffer size

◆ innobase_fts_drop_dd_table()

bool innobase_fts_drop_dd_table	(	const char *	name,
		bool	file_per_table
	)

Drop dd table & tablespace for fts aux table.

Parameters

[in]	name	table name
[in]	file_per_table	flag whether use file per table

Returns: true on success, false on failure.

◆ innobase_fts_text_cmp()

int innobase_fts_text_cmp	(	const void *	cs,
		const void *	p1,
		const void *	p2
	)

Compare two character string according to their charset.

Parameters

[in]	cs	Character set
[in]	p1	Key
[in]	p2	Node

◆ innobase_fts_text_cmp_prefix()

int innobase_fts_text_cmp_prefix	(	const void *	cs,
		const void *	p1,
		const void *	p2
	)

Compare two character string according to their charset.

Parameters

[in]	cs	Character set
[in]	p1	Key
[in]	p2	Node

◆ innobase_mysql_fts_get_token()

ulint innobase_mysql_fts_get_token	(	CHARSET_INFO *	cs,
		const byte *	start,
		const byte *	end,
		fts_string_t *	token
	)

Get the next token from the given string and store it in *token.

out: token's text

It is mostly copied from MyISAM's doc parsing function ft_simple_get_word()

Returns: length of string processed

Parameters

cs	in: Character set
start	in: start of text
end	in: one character past end of text
token	out: token's text

Variable Documentation

◆ fts_default_stopword

const char* fts_default_stopword[]

extern

InnoDB default stopword list: There are different versions of stopwords, the stop words listed below comes from "Google Stopword" list.

Reference: http://meta.wikimedia.org/wiki/Stop_word_list/google_stop_word_list. The final version of InnoDB default stopword list is still pending for decision

◆ fts_enable_diag_print

bool fts_enable_diag_print

extern

Variable specifying whether we do additional FTS diagnostic printout in the log.

◆ fts_internal_tbl_name

char* fts_internal_tbl_name

extern

Variable specifying the table that has Fulltext index to display its content through information schema table.

◆ fts_max_cache_size

ulong fts_max_cache_size

extern

Variable specifying the maximum FTS cache size for each table.

◆ fts_max_token_size

ulong fts_max_token_size

extern

Variable specifying the maximum FTS max token size.

◆ fts_max_total_cache_size

ulong fts_max_total_cache_size

extern

Variable specifying the total memory allocated for FTS cache.

◆ fts_min_token_size

ulong fts_min_token_size

extern

Variable specifying the minimum FTS max token size.

◆ fts_need_sync

bool fts_need_sync

extern

Whether the total memory used for FTS cache is exhausted, and we will need a sync to free some memory.

◆ FTS_NUM_AUX_COMMON

constexpr size_t FTS_NUM_AUX_COMMON = 5

constexpr

The number of FTS AUX common table for a fulltext index.

◆ FTS_NUM_AUX_INDEX

constexpr size_t FTS_NUM_AUX_INDEX = 6

constexpr

The number of FTS index partitions for a fulltext index.

◆ fts_num_word_optimize

ulong fts_num_word_optimize

extern

Variable specifying the number of word to optimize for each optimize table call.

◆ FTS_PREFIX

const char* FTS_PREFIX

extern

FTS auxiliary table prefix that are common to all FT indexes.

◆ FTS_PREFIX_5_7

const char* FTS_PREFIX_5_7

extern

FTS auxiliary table prefix that are common to all FT indexes.

◆ fts_result_cache_limit

ulong fts_result_cache_limit

extern

Variable specifying the FTS result cache limit for each query.

◆ FTS_SUFFIX_BEING_DELETED

const char* FTS_SUFFIX_BEING_DELETED

extern

◆ FTS_SUFFIX_BEING_DELETED_CACHE

const char* FTS_SUFFIX_BEING_DELETED_CACHE

extern

◆ FTS_SUFFIX_CONFIG

const char* FTS_SUFFIX_CONFIG

extern

◆ FTS_SUFFIX_CONFIG_5_7

const char* FTS_SUFFIX_CONFIG_5_7

extern

◆ FTS_SUFFIX_DELETED

const char* FTS_SUFFIX_DELETED

extern

◆ FTS_SUFFIX_DELETED_CACHE

const char* FTS_SUFFIX_DELETED_CACHE

extern

Classes

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ FTS_AUX_INDEX_TABLE_NUM_COLS

◆ fts_bind_doc_id

◆ FTS_BOOL

◆ FTS_COMMON_TABLE_IND_NAME

◆ FTS_CONFIG_TABLE_KEY_COL_LEN

◆ FTS_CONFIG_TABLE_NUM_COLS

◆ FTS_CONFIG_TABLE_VALUE_COL_LEN

◆ FTS_DELETED_TABLE_COL_LEN

◆ FTS_DELETED_TABLE_NUM_COLS

◆ FTS_DOC_ID_COL_NAME

◆ FTS_DOC_ID_FORMAT

◆ FTS_DOC_ID_INDEX_NAME

◆ FTS_DOC_ID_INDEX_NAME_LEN

◆ FTS_DOC_ID_LEN

◆ FTS_DOC_ID_MAX_STEP

◆ FTS_EXPAND

◆ FTS_INDEX_DOC_COUNT_LEN

◆ FTS_INDEX_FIRST_DOC_ID_LEN

◆ FTS_INDEX_ILIST_LEN

◆ FTS_INDEX_LAST_DOC_ID_LEN

◆ FTS_INDEX_TABLE_IND_NAME

◆ FTS_INDEX_WORD_LEN

◆ FTS_INIT_FTS_TABLE

◆ FTS_INIT_INDEX_TABLE

◆ FTS_MAX_NESTED_EXP

◆ FTS_MAX_WORD_LEN

◆ FTS_MAX_WORD_LEN_IN_CHAR

◆ FTS_NL

◆ FTS_NO_RANKING

◆ FTS_NULL_DOC_ID

◆ FTS_NUM_FIELDS_SORT

◆ FTS_OPT_RANKING

◆ FTS_OPTIMIZE_THRESHOLD

◆ FTS_PHRASE

◆ FTS_PROXIMITY

◆ fts_que_graph_free

◆ fts_read_doc_id

◆ FTS_SORTED

◆ fts_write_doc_id

◆ MAX_DOC_ID_OPT_VAL

◆ STOPWORD_FROM_DEFAULT

◆ STOPWORD_NOT_INIT

◆ STOPWORD_OFF

◆ STOPWORD_USER_TABLE

Typedef Documentation

◆ doc_id_t

◆ fts_rank_t

◆ fts_status_t

◆ ib_uc_t

Enumeration Type Documentation

◆ fts_row_state

◆ fts_status

◆ fts_table_type_t

Function Documentation

◆ fts_add_doc_from_tuple()

◆ fts_add_doc_id_column()

◆ fts_add_index()

◆ fts_cache_clear()

◆ fts_cache_create()

◆ fts_cache_index_cache_create()

◆ fts_cache_index_cache_remove()

◆ fts_cache_init()

◆ fts_check_cached_index()

◆ fts_check_common_tables_exist()

◆ fts_commit()

◆ fts_create()

◆ fts_create_common_dd_tables()

◆ fts_create_common_tables()

◆ fts_create_doc_id()

◆ fts_create_index_dd_tables()

◆ fts_create_index_tables()

◆ fts_create_index_tables_low()