diff options
author | unknown <monty@work.mysql.com> | 2001-04-11 13:04:03 +0200 |
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committer | unknown <monty@work.mysql.com> | 2001-04-11 13:04:03 +0200 |
commit | 8dd2e5b8d93d79965e833e3b979675240478c591 (patch) | |
tree | 9ad58a68370fc8feb8195b7b9c6423d58372093a /myisam/ftdefs.h | |
parent | 0c971641774f4d06f5442ef23af5d8c7ef9058ab (diff) | |
download | mariadb-git-8dd2e5b8d93d79965e833e3b979675240478c591.tar.gz |
Added all changes from old 4.0 version:
PSTACK, libmysqld and MySQL filesystem
UPDATE ... ORDER BY
DELETE ... ORDER BY
New faster fulltext handling
Faster compressed keys
Makefile.am:
Added support for pstack and libmysqld_dir
acconfig.h:
MySQL filesystem and PSTACK
acinclude.m4:
MySQL File system
client/mysql.cc:
Support for --xml
configure.in:
Pstack, MySQL FS and libmysqld_dir
include/ft_global.h:
Faster fulltext
include/my_pthread.h:
Made c++ safe
include/myisam.h:
Update for faster fulltext
include/mysql_com.h:
new my_net_read()
include/violite.h:
libmysqld
libmysql/net.c:
New protocol that supports big packets
myisam/Makefile.am:
Faster fulltext
myisam/ft_parser.c:
Faster fulltext
myisam/ft_search.c:
Faster fulltext
myisam/ft_update.c:
Faster fulltext
myisam/ftdefs.h:
Faster fulltext
myisam/mi_check.c:
Faster fulltext
myisam/mi_open.c:
Faster compressed keys
myisam/mi_search.c:
Faster compressed keys
myisam/mi_update.c:
Faster compressed keys
myisam/myisamdef.h:
Faster compressed keys
myisam/sort.c:
Faster compressed keys
mysql-test/mysql-test-run.sh:
--skip-innobase and --skip-bdb
sql/ChangeLog:
Changelog
sql/Makefile.am:
PSTACK
sql/mysql_priv.h:
New ORDER BY options and libmysqld
sql/mysqld.cc:
PSTACK
sql/net_serv.cc:
New protocol that supports big packets
sql/share/estonian/errmsg.txt:
New error messages
sql/sql_base.cc:
Better list_open_tabels
sql/sql_delete.cc:
ORDER BY for delete
sql/sql_lex.cc:
Added language convertation of all strings
sql/sql_parse.cc:
Changes for libmysqld
Use new ORDER BY options
sql/sql_show.cc:
Character set convertations
Use new list_open_tables function.
sql/sql_update.cc:
UPDATE ... ORDER BY
sql/sql_yacc.yy:
Clean up symbol definitions
DELETE .. ORDER BY
UPDATE .. ORDER BY
sql/table.h:
new OPEN_TABLE_LIST structure
BitKeeper/etc/logging_ok:
Logging to logging@openlogging.org accepted
Diffstat (limited to 'myisam/ftdefs.h')
-rw-r--r-- | myisam/ftdefs.h | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/myisam/ftdefs.h b/myisam/ftdefs.h index ebf99e84d5a..b0aeb652b36 100644 --- a/myisam/ftdefs.h +++ b/myisam/ftdefs.h @@ -1,15 +1,15 @@ /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ @@ -23,14 +23,21 @@ #include <my_tree.h> #define MIN_WORD_LEN 4 +#define MAX_WORD_LEN HA_FT_MAXLEN +#define MAX_WORD_LEN_FOR_SORT 20 #define HYPHEN_IS_DELIM #define HYPHEN_IS_CONCAT /* not used for now */ #define COMPILE_STOPWORDS_IN -/* Most of the formulae were shamelessly stolen from SMART distribution - ftp://ftp.cs.cornell.edu/pub/smart/smart.11.0.tar.Z +/* Interested readers may consult SMART + (ftp://ftp.cs.cornell.edu/pub/smart/smart.11.0.tar.Z) + for an excellent implementation of vector space model we use. + It also demonstrate the usage of different weghting techniques. + This code, though, is completely original and is not based on the + SMART code but was in some cases inspired by it. + NORM_PIVOT was taken from the article A.Singhal, C.Buckley, M.Mitra, "Pivoted Document Length Normalization", ACM SIGIR'96, 21-29, 1996 @@ -82,6 +89,19 @@ extern ulong collstat; #define GWS_ENTROPY (1-(suml/sum-log(sum))/log(aio->info->state->records)) /*=================================================================*/ +/* Boolean search operators */ +#define FTB_YES '+' +#define FTB_NO '-' +#define FTB_INC '>' +#define FTB_DEC '<' +#define FTB_LBR '(' +#define FTB_RBR ')' +#define FTB_NEG '~' +#define FTB_TRUNC '*' + +// #define FTB_MAX_SUBEXPR 255 +// #define FTB_MAX_DEPTH 16 + typedef struct st_ft_word { byte * pos; uint len; @@ -91,9 +111,26 @@ typedef struct st_ft_word { #endif /* EVAL_RUN */ } FT_WORD; +typedef struct st_ftb_param { + byte prev; + int yesno; + int plusminus; + bool pmsign; + bool trunc; +} FTB_PARAM; + int is_stopword(char *word, uint len); +int is_boolean(byte *q, uint len); uint _ft_make_key(MI_INFO *, uint , byte *, FT_WORD *, my_off_t); +byte ft_get_word(byte **, byte *, FT_WORD *, FTB_PARAM *); +byte ft_simple_get_word(byte **, byte *, FT_WORD *); + TREE * ft_parse(TREE *, byte *, int); FT_WORD * ft_linearize(MI_INFO *, uint, byte *, TREE *); +FT_WORD * _mi_ft_parserecord(MI_INFO *, uint , byte *, const byte *); + +FT_DOCLIST * ft_nlq_search(MI_INFO *, uint, byte *, uint); +FT_DOCLIST * ft_boolean_search(MI_INFO *, uint, byte *, uint); + |