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Merge mysql.com:/home/mydev/mysql-5.0-bug19604

Browse source 
into  mysql.com:/home/mydev/mysql-5.1-bug19604
This commit is contained in:
ingo@mysql.com 2006-05-31 10:27:53 +02:00
commit e4f12577a6
5 changed files with 27 additions and 29 deletions
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34
storage/myisam/mi_check.c
View file

@ -453,25 +453,24 @@ int chk_key(MI_CHECK *param, register MI_INFO *info)
if ((uint) share->base.auto_key -1 == key)
{
/* Check that auto_increment key is bigger than max key value */
ulonglong save_auto_value=info->s->state.auto_increment;
info->s->state.auto_increment=0;
ulonglong auto_increment;
info->lastinx=key;
_mi_read_key_record(info, 0L, info->rec_buff);
update_auto_increment(info, info->rec_buff);
if (info->s->state.auto_increment > save_auto_value)
auto_increment= retrieve_auto_increment(info, info->rec_buff);
if (auto_increment > info->s->state.auto_increment)
{
mi_check_print_warning(param,
"Auto-increment value: %s is smaller than max used value: %s",
llstr(save_auto_value,buff2),
llstr(info->s->state.auto_increment, buff));
mi_check_print_warning(param, "Auto-increment value: %s is smaller "
"than max used value: %s",
llstr(info->s->state.auto_increment,buff2),
llstr(auto_increment, buff));
}
if (param->testflag & T_AUTO_INC)
{
set_if_bigger(info->s->state.auto_increment,
param->auto_increment_value);
set_if_bigger(info->s->state.auto_increment,
auto_increment);
set_if_bigger(info->s->state.auto_increment,
param->auto_increment_value);
}
else
info->s->state.auto_increment=save_auto_value;
/* Check that there isn't a row with auto_increment = 0 in the table */
mi_extra(info,HA_EXTRA_KEYREAD,0);
@ -481,8 +480,8 @@ int chk_key(MI_CHECK *param, register MI_INFO *info)
{
/* Don't count this as a real warning, as myisamchk can't correct it */
uint save=param->warning_printed;
mi_check_print_warning(param,
"Found row where the auto_increment column has the value 0");
mi_check_print_warning(param, "Found row where the auto_increment "
"column has the value 0");
param->warning_printed=save;
}
mi_extra(info,HA_EXTRA_NO_KEYREAD,0);
@ -4096,11 +4095,10 @@ void update_auto_increment_key(MI_CHECK *param, MI_INFO *info,
}
else
{
ulonglong auto_increment= (repair_only ? info->s->state.auto_increment :
param->auto_increment_value);
info->s->state.auto_increment=0;
update_auto_increment(info, record);
ulonglong auto_increment= retrieve_auto_increment(info, record);
set_if_bigger(info->s->state.auto_increment,auto_increment);
if (!repair_only)
set_if_bigger(info->s->state.auto_increment, param->auto_increment_value);
}
mi_extra(info,HA_EXTRA_NO_KEYREAD,0);
my_free((char*) record, MYF(0));

14
storage/myisam/mi_key.c
View file

@ -507,22 +507,21 @@ int _mi_read_key_record(MI_INFO *info, my_off_t filepos, byte *buf)
return(-1); /* Wrong data to read */
}
/*
Update auto_increment info
Retrieve auto_increment info
SYNOPSIS
update_auto_increment()
retrieve_auto_increment()
info MyISAM handler
record Row to update
IMPLEMENTATION
Only replace the auto_increment value if it is higher than the previous
one. For signed columns we don't update the auto increment value if it's
For signed columns we don't retrieve the auto increment value if it's
less than zero.
*/
void update_auto_increment(MI_INFO *info,const byte *record)
ulonglong retrieve_auto_increment(MI_INFO *info,const byte *record)
{
ulonglong value= 0; /* Store unsigned values here */
longlong s_value= 0; /* Store signed values here */
@ -587,6 +586,5 @@ void update_auto_increment(MI_INFO *info,const byte *record)
and if s_value == 0 then value will contain either s_value or the
correct value.
*/
set_if_bigger(info->s->state.auto_increment,
(s_value > 0) ? (ulonglong) s_value : value);
return (s_value > 0) ? (ulonglong) s_value : value;
}

3
storage/myisam/mi_update.c
View file

@ -164,7 +164,8 @@ int mi_update(register MI_INFO *info, const byte *oldrec, byte *newrec)
key_changed|= HA_STATE_CHANGED; /* Must update index file */
}
if (auto_key_changed)
update_auto_increment(info,newrec);
set_if_bigger(info->s->state.auto_increment,
retrieve_auto_increment(info, newrec));
if (share->calc_checksum)
info->state->checksum+=(info->checksum - old_checksum);

3
storage/myisam/mi_write.c
View file

@ -149,7 +149,8 @@ int mi_write(MI_INFO *info, byte *record)
info->state->checksum+=info->checksum;
}
if (share->base.auto_key)
update_auto_increment(info,record);
set_if_bigger(info->s->state.auto_increment,
retrieve_auto_increment(info, record));
info->update= (HA_STATE_CHANGED | HA_STATE_AKTIV | HA_STATE_WRITTEN |
HA_STATE_ROW_CHANGED);
info->state->records++;

2
storage/myisam/myisamdef.h
View file

@ -591,7 +591,7 @@ extern uint _mi_pack_key(MI_INFO *info,uint keynr,uchar *key,uchar *old,
extern int _mi_read_key_record(MI_INFO *info,my_off_t filepos,byte *buf);
extern int _mi_read_cache(IO_CACHE *info,byte *buff,my_off_t pos,
uint length,int re_read_if_possibly);
extern void update_auto_increment(MI_INFO *info,const byte *record);
extern ulonglong retrieve_auto_increment(MI_INFO *info,const byte *record);
extern byte *mi_alloc_rec_buff(MI_INFO *,ulong, byte**);
#define mi_get_rec_buff_ptr(info,buf) \