ft_boolean_search.cc File Reference

#include <fcntl.h>
#include <sys/types.h>
#include <algorithm>
#include "my_compiler.h"
#include "my_dbug.h"
#include "my_inttypes.h"
#include "my_macros.h"
#include "storage/myisam/ftdefs.h"
#include "storage/myisam/myisamdef.h"
#include "template_utils.h"

Classes
struct	FTB_EXPR
struct	FTB_WORD
struct	FTB
struct	MY_FTB_PARAM
struct	MY_FTB_PHRASE_PARAM
struct	MY_FTB_FIND_PARAM

Macros
#define	FT_CORE
#define	FTB_FLAG_TRUNC   1
#define	FTB_FLAG_YES   2
#define	FTB_FLAG_NO   4
#define	FTB_FLAG_WONLY   8
#define	CMP_NUM(a, b)   (((a) < (b)) ? -1 : ((a) == (b)) ? 0 : 1)

Functions
static int	FTB_WORD_cmp (void *v_v, uchar *u_a, uchar *u_b)
static int	ftb_query_add_word (MYSQL_FTPARSER_PARAM *param, char *word, int word_len, MYSQL_FTPARSER_BOOLEAN_INFO *info)
static int	ftb_parse_query_internal (MYSQL_FTPARSER_PARAM *param, char *query, int len)
static int	_ftb_parse_query (FTB *ftb, uchar *query, uint len, struct st_mysql_ftparser *parser)
static int	_ftb_no_dupes_cmp (const void *, const void *a, const void *b)
static int	_ft2_search_no_lock (FTB *ftb, FTB_WORD *ftbw, bool init_search)
static int	_ft2_search (FTB *ftb, FTB_WORD *ftbw, bool init_search)
static void	_ftb_init_index_search (FT_INFO *ftb_base)
FT_INFO *	ft_init_boolean_search (MI_INFO *info, uint keynr, uchar *query, uint query_len, const CHARSET_INFO *cs)
static int	ftb_phrase_add_word (MYSQL_FTPARSER_PARAM *param, char *word, int word_len, MYSQL_FTPARSER_BOOLEAN_INFO *boolean_info)
static int	ftb_check_phrase_internal (MYSQL_FTPARSER_PARAM *param, char *document, int len)
static int	_ftb_check_phrase (FTB *ftb, const uchar *document, uint len, FTB_EXPR *ftbe, struct st_mysql_ftparser *parser)
static int	_ftb_climb_the_tree (FTB *ftb, FTB_WORD *ftbw, FT_SEG_ITERATOR *ftsi_orig)
int	ft_boolean_read_next (FT_INFO *ftb_base, char *record)
static int	ftb_find_relevance_add_word (MYSQL_FTPARSER_PARAM *param, char *word, int len, MYSQL_FTPARSER_BOOLEAN_INFO *boolean_info)
static int	ftb_find_relevance_parse (MYSQL_FTPARSER_PARAM *param, char *doc, int len)
float	ft_boolean_find_relevance (FT_INFO *ftb_base, uchar *record, uint length)
void	ft_boolean_close_search (FT_INFO *ftb_base)
float	ft_boolean_get_relevance (FT_INFO *ftb_base)
void	ft_boolean_reinit_search (FT_INFO *ftb)

Variables
static double	_wghts [11]
static double *	wghts = _wghts + 5
static double	_nwghts [11]
static double *	nwghts = _nwghts + 5

Macro Definition Documentation

CMP_NUM

#define CMP_NUM	(		a,
			b
	)		(((a) < (b)) ? -1 : ((a) == (b)) ? 0 : 1)

FT_CORE

#define FT_CORE

FTB_FLAG_NO

#define FTB_FLAG_NO   4

FTB_FLAG_TRUNC

#define FTB_FLAG_TRUNC   1

FTB_FLAG_WONLY

#define FTB_FLAG_WONLY   8

FTB_FLAG_YES

#define FTB_FLAG_YES   2

Function Documentation

_ft2_search()

static int _ft2_search ( FTB *  ftb, FTB_WORD *  ftbw, bool  init_search  )

static

_ft2_search_no_lock()

static int _ft2_search_no_lock ( FTB *  ftb, FTB_WORD *  ftbw, bool  init_search  )

static

_ftb_check_phrase()

static int _ftb_check_phrase ( FTB *  ftb, const uchar *  document, uint  len, FTB_EXPR *  ftbe, struct st_mysql_ftparser *  parser  )

static

_ftb_climb_the_tree()

static int _ftb_climb_the_tree ( FTB *  ftb, FTB_WORD *  ftbw, FT_SEG_ITERATOR *  ftsi_orig  )

static

_ftb_init_index_search()

static void _ftb_init_index_search ( FT_INFO *  ftb_base )

static

_ftb_no_dupes_cmp()

static int _ftb_no_dupes_cmp ( const void *  , const void *  a, const void *  b  )

static

_ftb_parse_query()

static int _ftb_parse_query ( FTB *  ftb, uchar *  query, uint  len, struct st_mysql_ftparser *  parser  )

static

ft_boolean_close_search()

void ft_boolean_close_search

(

FT_INFO *

ftb_base

)

ft_boolean_find_relevance()

float ft_boolean_find_relevance	(	FT_INFO *	ftb_base,
		uchar *	record,
		uint	length
	)

ft_boolean_get_relevance()

float ft_boolean_get_relevance

(

FT_INFO *

ftb_base

)

ft_boolean_read_next()

int ft_boolean_read_next	(	FT_INFO *	ftb_base,
		char *	record
	)

ft_boolean_reinit_search()

void ft_boolean_reinit_search

(

FT_INFO *

ftb

)

ft_init_boolean_search()

FT_INFO * ft_init_boolean_search	(	MI_INFO *	info,
		uint	keynr,
		uchar *	query,
		uint	query_len,
		const CHARSET_INFO *	cs
	)

ftb_check_phrase_internal()

static int ftb_check_phrase_internal ( MYSQL_FTPARSER_PARAM *  param, char *  document, int  len  )

static

ftb_find_relevance_add_word()

static int ftb_find_relevance_add_word ( MYSQL_FTPARSER_PARAM *  param, char *  word, int  len, MYSQL_FTPARSER_BOOLEAN_INFO *  boolean_info  )

static

ftb_find_relevance_parse()

static int ftb_find_relevance_parse ( MYSQL_FTPARSER_PARAM *  param, char *  doc, int  len  )

static

ftb_parse_query_internal()

static int ftb_parse_query_internal ( MYSQL_FTPARSER_PARAM *  param, char *  query, int  len  )

static

ftb_phrase_add_word()

static int ftb_phrase_add_word ( MYSQL_FTPARSER_PARAM *  param, char *  word, int  word_len, MYSQL_FTPARSER_BOOLEAN_INFO *  boolean_info  )

static

ftb_query_add_word()

static int ftb_query_add_word ( MYSQL_FTPARSER_PARAM *  param, char *  word, int  word_len, MYSQL_FTPARSER_BOOLEAN_INFO *  info  )

static

FTB_WORD_cmp()

static int FTB_WORD_cmp ( void *  v_v, uchar *  u_a, uchar *  u_b  )

static

Variable Documentation

_nwghts

double _nwghts[11]

static

Initial value:

= {
    -0.065843621399177, -0.098765432098766, -0.148148148148148,
    -0.222222222222222, -0.333333333333334, -0.500000000000000,
    -0.750000000000000, -1.125000000000000, -1.687500000000000,
    -2.531250000000000, -3.796875000000000}

_wghts

double _wghts[11]

static

Initial value:

= {
    0.131687242798354, 0.197530864197531, 0.296296296296296, 0.444444444444444,
    0.666666666666667, 1.000000000000000, 1.500000000000000, 2.250000000000000,
    3.375000000000000, 5.062500000000000, 7.593750000000000}

nwghts

double* nwghts = _nwghts + 5

static

wghts

double* wghts = _wghts + 5

static