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/* Copyright (C) 2001-2006 MySQL 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; version 2 of the License.
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 */
/* Written by Sergei A. Golubchik, who has a shared copyright to this code
added support for long options (my_getopt) 22.5.2002 by Jani Tolonen */
#include "ftdefs.h"
#include <my_getopt.h>
static void usage();
static void complain(int val);
static my_bool get_one_option(int, const struct my_option *, char *);
static int count=0, stats=0, dump=0, lstats=0;
static my_bool verbose;
static char *query=NULL;
static uint lengths[256];
#define MAX_LEN (HA_FT_MAXBYTELEN+10)
#define HOW_OFTEN_TO_WRITE 10000
static struct my_option my_long_options[] =
{
{"help", 'h', "Display help and exit.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"help", '?', "Synonym for -h.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"count", 'c', "Calculate per-word stats (counts and global weights).",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"dump", 'd', "Dump index (incl. data offsets and word weights).",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"length", 'l', "Report length distribution.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"stats", 's', "Report global stats.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"verbose", 'v', "Be verbose.",
(uchar**) &verbose, (uchar**) &verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
int main(int argc,char *argv[])
{
int error=0, subkeys;
uint keylen, keylen2=0, inx, doc_cnt=0;
float weight= 1.0;
double gws, min_gws=0, avg_gws=0;
MI_INFO *info;
char buf[MAX_LEN], buf2[MAX_LEN], buf_maxlen[MAX_LEN], buf_min_gws[MAX_LEN];
ulong total=0, maxlen=0, uniq=0, max_doc_cnt=0;
struct { MI_INFO *info; } aio0, *aio=&aio0; /* for GWS_IN_USE */
MY_INIT(argv[0]);
if ((error= handle_options(&argc, &argv, my_long_options, get_one_option)))
exit(error);
if (count || dump)
verbose=0;
if (!count && !dump && !lstats && !query)
stats=1;
if (verbose)
setbuf(stdout,NULL);
if (argc < 2)
usage();
{
char *end;
inx= (uint) strtoll(argv[1], &end, 10);
if (*end)
usage();
}
init_key_cache(dflt_key_cache,MI_KEY_BLOCK_LENGTH,USE_BUFFER_INIT, 0, 0);
if (!(info=mi_open(argv[0], O_RDONLY,
HA_OPEN_ABORT_IF_LOCKED|HA_OPEN_FROM_SQL_LAYER)))
{
error=my_errno;
goto err;
}
*buf2=0;
aio->info=info;
if ((inx >= info->s->base.keys) ||
!(info->s->keyinfo[inx].flag & HA_FULLTEXT))
{
printf("Key %d in table %s is not a FULLTEXT key\n", inx, info->filename);
goto err;
}
mi_lock_database(info, F_EXTRA_LCK);
info->lastpos= HA_OFFSET_ERROR;
info->update|= HA_STATE_PREV_FOUND;
while (!(error=mi_rnext(info,NULL,inx)))
{
keylen=*(info->lastkey);
subkeys=ft_sintXkorr(info->lastkey+keylen+1);
if (subkeys >= 0)
weight=*(float*)&subkeys;
#ifdef HAVE_SNPRINTF
snprintf(buf,MAX_LEN,"%.*s",(int) keylen,info->lastkey+1);
#else
sprintf(buf,"%.*s",(int) keylen,info->lastkey+1);
#endif
my_casedn_str(default_charset_info,buf);
total++;
lengths[keylen]++;
if (count || stats)
{
if (strcmp(buf, buf2))
{
if (*buf2)
{
uniq++;
avg_gws+=gws=GWS_IN_USE;
if (count)
printf("%9u %20.7f %s\n",doc_cnt,gws,buf2);
if (maxlen<keylen2)
{
maxlen=keylen2;
strmov(buf_maxlen, buf2);
}
if (max_doc_cnt < doc_cnt)
{
max_doc_cnt=doc_cnt;
strmov(buf_min_gws, buf2);
min_gws=gws;
}
}
strmov(buf2, buf);
keylen2=keylen;
doc_cnt=0;
}
doc_cnt+= (subkeys >= 0 ? 1 : -subkeys);
}
if (dump)
{
if (subkeys>=0)
printf("%9lx %20.7f %s\n", (long) info->lastpos,weight,buf);
else
printf("%9lx => %17d %s\n",(long) info->lastpos,-subkeys,buf);
}
if (verbose && (total%HOW_OFTEN_TO_WRITE)==0)
printf("%10ld\r",total);
}
mi_lock_database(info, F_UNLCK);
if (count || stats)
{
if (*buf2)
{
uniq++;
avg_gws+=gws=GWS_IN_USE;
if (count)
printf("%9u %20.7f %s\n",doc_cnt,gws,buf2);
if (maxlen<keylen2)
{
maxlen=keylen2;
strmov(buf_maxlen, buf2);
}
if (max_doc_cnt < doc_cnt)
{
max_doc_cnt=doc_cnt;
strmov(buf_min_gws, buf2);
min_gws=gws;
}
}
}
if (stats)
{
count=0;
for (inx=0;inx<256;inx++)
{
count+=lengths[inx];
if ((ulong) count >= total/2)
break;
}
printf("Total rows: %lu\nTotal words: %lu\n"
"Unique words: %lu\nLongest word: %lu chars (%s)\n"
"Median length: %u\n"
"Average global weight: %f\n"
"Most common word: %lu times, weight: %f (%s)\n",
(long) info->state->records, total, uniq, maxlen, buf_maxlen,
inx, avg_gws/uniq, max_doc_cnt, min_gws, buf_min_gws);
}
if (lstats)
{
count=0;
for (inx=0; inx<256; inx++)
{
count+=lengths[inx];
if (count && lengths[inx])
printf("%3u: %10lu %5.2f%% %20lu %4.1f%%\n", inx,
(ulong) lengths[inx],100.0*lengths[inx]/total,(ulong) count,
100.0*count/total);
}
}
err:
if (error && error != HA_ERR_END_OF_FILE)
printf("got error %d\n",my_errno);
if (info)
mi_close(info);
return 0;
}
static my_bool
get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
char *argument __attribute__((unused)))
{
switch(optid) {
case 'd':
dump=1;
complain(count || query);
break;
case 's':
stats=1;
complain(query!=0);
break;
case 'c':
count= 1;
complain(dump || query);
break;
case 'l':
lstats=1;
complain(query!=0);
break;
case '?':
case 'h':
usage();
}
return 0;
}
#include <help_start.h>
static void usage()
{
printf("Use: myisam_ftdump <table_name> <index_num>\n");
my_print_help(my_long_options);
my_print_variables(my_long_options);
NETWARE_SET_SCREEN_MODE(1);
exit(1);
}
#include <help_end.h>
static void complain(int val) /* Kinda assert :-) */
{
if (val)
{
printf("You cannot use these options together!\n");
exit(1);
}
}
#include "mi_extrafunc.h"
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