fts0types.h File Reference

Full text search types file. More...

#include "fts0fts.h"
#include "fut0fut.h"
#include "pars0pars.h"
#include "que0types.h"
#include "univ.i"
#include "ut0byte.h"
#include "ut0rbt.h"
#include "fts0types.ic"
#include "fts0vlc.ic"

Go to the source code of this file.

Classes
struct	fts_doc_stats_t
	Statistics relevant to a particular document, used during retrieval. More...
struct	fts_get_doc_t
	It's main purpose is to store the SQL prepared statements that are required to retrieve a document from the database. More...
struct	fts_index_cache_t
	Since we can have multiple FTS indexes on a table, we keep a per index cache of words etc. More...
struct	fts_update_t
	For supporting the tracking of updates on multiple FTS indexes we need to track which FTS indexes need to be updated. More...
struct	fts_stopword_t
	Stop word control infotmation. More...
struct	fts_sync_t
	The SYNC state of the cache. More...
struct	fts_cache_t
	The cache for the FTS system. More...
struct	fts_node_t
	Columns of the FTS auxiliary INDEX table. More...
struct	fts_tokenizer_word_t
	A tokenizer word. More...
struct	fts_word_t
	Word text plus it's array of nodes as on disk in FTS index. More...
struct	fts_fetch_t
	Callback for reading and filtering nodes that are read from FTS index. More...
struct	fts_index_selector_t
	For horizontally splitting an FTS auxiliary index. More...
struct	fts_doc_t
	This type represents a single document field. More...
struct	fts_token_t
	A token and its positions within a document. More...

Typedefs
typedef pars_user_func_cb_t	fts_sql_callback
	Callbacks used within FTS. More...
typedef void(*	fts_filter) (void *, fts_node_t *, void *, ulint len)

Functions
static int	fts_trx_row_doc_id_cmp (const void *p1, const void *p2)
	Compare two fts_trx_row_t instances doc_ids. More...
static int	fts_ranking_doc_id_cmp (const void *p1, const void *p2)
	Compare two fts_ranking_t instances doc_ids. More...
static int	fts_update_doc_id_cmp (const void *p1, const void *p2)
	Compare two fts_update_t instances doc_ids. More...
static ulint	fts_decode_vlc (byte **ptr)
	Decode and return the integer that was encoded using our VLC scheme. More...
static void	fts_string_dup (fts_string_t *dst, const fts_string_t *src, mem_heap_t *heap)
	Duplicate a string. More...
static ulint	fts_get_encoded_len (ulint val)
	Return length of val if it were encoded using our VLC scheme. More...
static ulint	fts_encode_int (ulint val, byte *buf)
	Encode an integer using our VLC scheme and return the length in bytes. More...
static const char *	fts_get_suffix (ulint selected)
	Get the selected FTS aux INDEX suffix. More...
static const char *	fts_get_suffix_5_7 (ulint selected)
	Return the selected FTS aux index suffix in 5.7 compatible format. More...
static ulint	fts_select_index (const CHARSET_INFO *cs, const byte *str, ulint len)
	Select the FTS auxiliary index for the given character. More...

Variables
const fts_index_selector_t	fts_index_selector []
	It's defined in fts/fts0fts.c. More...
const fts_index_selector_t	fts_index_selector_5_7 []
	It's defined in fts/fts0fts.c. More...

Detailed Description

Full text search types file.

Created 2007-03-27 Sunny Bains

Typedef Documentation

fts_filter

typedef void(* fts_filter) (void *, fts_node_t *, void *, ulint len)

fts_sql_callback

typedef pars_user_func_cb_t fts_sql_callback

Callbacks used within FTS.

Function Documentation

fts_decode_vlc()

static ulint fts_decode_vlc ( byte **  ptr )

inlinestatic

Decode and return the integer that was encoded using our VLC scheme.

in: ptr to decode from, this ptr is incremented by the number of bytes decoded

Parameters

ptr	out: value decoded

fts_encode_int()

static ulint fts_encode_int ( ulint  val, byte *  buf  )

inlinestatic

Encode an integer using our VLC scheme and return the length in bytes.

Parameters

[in]	val	value to encode
[in]	buf	buffer, must have enough space

Returns

length of value encoded, in bytes

fts_get_encoded_len()

static ulint fts_get_encoded_len ( ulint  val )

inlinestatic

Return length of val if it were encoded using our VLC scheme.

in: value to encode

Parameters

val	out: length of value encoded, in bytes

fts_get_suffix()

static const char * fts_get_suffix ( ulint  selected )

inlinestatic

Get the selected FTS aux INDEX suffix.

in: selected index

fts_get_suffix_5_7()

static const char * fts_get_suffix_5_7 ( ulint  selected )

inlinestatic

Return the selected FTS aux index suffix in 5.7 compatible format.

Parameters

[in]

selected

selected index

Returns

the suffix name

fts_ranking_doc_id_cmp()

static int fts_ranking_doc_id_cmp ( const void *  p1, const void *  p2  )

inlinestatic

Compare two fts_ranking_t instances doc_ids.

Parameters

[in]	p1	id1
[in]	p2	id2

Returns

< 0 if n1 < n2, < 0 if n1 < n2, > 0 if n1 > n2

fts_select_index()

static ulint fts_select_index ( const CHARSET_INFO *  cs, const byte *  str, ulint  len  )

inlinestatic

Select the FTS auxiliary index for the given character.

Parameters

[in]	cs	charset
[in]	str	string
[in]	len	string length in bytes

Returns

the index to use for the string

fts_string_dup()

static void fts_string_dup ( fts_string_t *  dst, const fts_string_t *  src, mem_heap_t *  heap  )

inlinestatic

Duplicate a string.

Parameters

[in]	dst	dup to here
[in]	src	src string
[in]	heap	heap to use

fts_trx_row_doc_id_cmp()

static int fts_trx_row_doc_id_cmp ( const void *  p1, const void *  p2  )

inlinestatic

Compare two fts_trx_row_t instances doc_ids.

Parameters

[in]	p1	id1
[in]	p2	id2

Returns

< 0 if n1 < n2, < 0 if n1 < n2, > 0 if n1 > n2

fts_update_doc_id_cmp()

static int fts_update_doc_id_cmp ( const void *  p1, const void *  p2  )

inlinestatic

Compare two fts_update_t instances doc_ids.

Parameters

[in]	p1	id1
[in]	p2	id2

Returns

< 0 if n1 < n2, < 0 if n1 < n2, > 0 if n1 > n2

Variable Documentation

fts_index_selector

const fts_index_selector_t fts_index_selector[]

extern

It's defined in fts/fts0fts.c.

It's defined in fts/fts0fts.c.

fts_index_selector_5_7

const fts_index_selector_t fts_index_selector_5_7[]

extern

It's defined in fts/fts0fts.c.

It's defined in fts/fts0fts.c.