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Commit 412d0551 authored by unknown's avatar unknown
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Merge bk-internal.mysql.com:/home/bk/mysql-4.1/ 

into serg.mylan:/usr/home/serg/Abk/mysql-4.1
parents b33e9e97 d454b567
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Inline Side-by-side
Showing with 116 additions and 77 deletions
cmd-line-utils/libedit/history.c
View file @ 412d0551
......@@ -647,7 +647,7 @@ history_save(History *h, const char *fname)
for (retval = HLAST(h, &ev);
retval != -1;
retval = HPREV(h, &ev), i++) {
len = strlen(ev.str) * 4;
len = strlen(ev.str) * 4 + 1;
if (len >= max_size) {
max_size = (len + 1023) & ~1023;
ptr = h_realloc(ptr, max_size);
......
myisammrg/myrg_open.c
View file @ 412d0551
......@@ -32,30 +32,39 @@
MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
{
int save_errno,i,errpos;
uint files,dir_length,length,key_parts;
int save_errno,errpos;
uint files,i,dir_length,length,key_parts;
ulonglong file_offset;
char name_buff[FN_REFLEN*2],buff[FN_REFLEN],*end;
MYRG_INFO info,*m_info;
MYRG_INFO *m_info;
File fd;
IO_CACHE file;
MI_INFO *isam,*last_isam;
MI_INFO *isam;
DBUG_ENTER("myrg_open");
LINT_INIT(last_isam);
LINT_INIT(m_info);
m_info=0;
isam=0;
errpos=files=0;
bzero((gptr) &info,sizeof(info));
bzero((char*) &file,sizeof(file));
if ((fd=my_open(fn_format(name_buff,name,"",MYRG_NAME_EXT,4),
O_RDONLY | O_SHARE,MYF(0))) < 0 ||
init_io_cache(&file, fd, IO_SIZE, READ_CACHE, 0, 0,
MYF(MY_WME | MY_NABP)))
O_RDONLY | O_SHARE,MYF(0))) < 0)
goto err;
errpos=1;
if (init_io_cache(&file, fd, 4*IO_SIZE, READ_CACHE, 0, 0,
MYF(MY_WME | MY_NABP)))
goto err;
errpos=2;
dir_length=dirname_part(name_buff,name);
info.reclength=0;
while ((length=my_b_gets(&file,buff,FN_REFLEN-1)))
{
if ((end=buff+length)[-1] == '\n')
end[-1]='\0';
if (buff[0] && buff[0] != '#')
files++;
}
my_b_seek(&file, 0);
while ((length=my_b_gets(&file,buff,FN_REFLEN-1)))
{
if ((end=buff+length)[-1] == '\n')
......@@ -67,7 +76,7 @@ MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
if( !strncmp(buff+1,"INSERT_METHOD=",14))
{ /* Lookup insert method */
int tmp=find_type(buff+15,&merge_insert_method,2);
info.merge_insert_method = (uint) (tmp >= 0 ? tmp : 0);
m_info->merge_insert_method = (uint) (tmp >= 0 ? tmp : 0);
}
continue; /* Skip comments */
}
......@@ -80,65 +89,58 @@ MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
}
if (!(isam=mi_open(buff,mode,(handle_locking?HA_OPEN_WAIT_IF_LOCKED:0))))
goto err;
files++;
last_isam=isam;
if (info.reclength && info.reclength != isam->s->base.reclength)
if (!m_info)
{
my_errno=HA_ERR_WRONG_MRG_TABLE_DEF;
key_parts=isam->s->base.key_parts;
if (!(m_info= (MYRG_INFO*) my_malloc(sizeof(MYRG_INFO) +
files*sizeof(MYRG_TABLE) +
key_parts*sizeof(long),
MYF(MY_WME|MY_ZEROFILL))))
goto err;
}
info.reclength=isam->s->base.reclength;
}
key_parts=(isam ? isam->s->base.key_parts : 0);
if (!(m_info= (MYRG_INFO*) my_malloc(sizeof(MYRG_INFO)+
files*sizeof(MYRG_TABLE)+
sizeof(long)*key_parts,
MYF(MY_WME))))
goto err;
*m_info=info;
m_info->tables=files;
if (files)
{
m_info->open_tables=(MYRG_TABLE *) (m_info+1);
m_info->rec_per_key_part=(ulong *) (m_info->open_tables+files);
bzero((char*) m_info->rec_per_key_part,sizeof(long)*key_parts);
}
else
{
m_info->open_tables=0;
m_info->rec_per_key_part=0;
}
errpos=2;
for (i=files ; i-- > 0 ; )
m_info->tables=files;
m_info->reclength=isam->s->base.reclength;
file_offset=files=0;
errpos=3;
}
m_info->open_tables[files].table= isam;
m_info->open_tables[files].file_offset=(my_off_t) file_offset;
file_offset+=isam->state->data_file_length;
files++;
if (m_info->reclength != isam->s->base.reclength)
{
uint j;
m_info->open_tables[i].table=isam;
m_info->options|=isam->s->options;
m_info->records+=isam->state->records;
m_info->del+=isam->state->del;
m_info->data_file_length+=isam->state->data_file_length;
for (j=0; j < key_parts; j++)
m_info->rec_per_key_part[j]+=isam->s->state.rec_per_key_part[j] / files;
if (i)
isam=(MI_INFO*) (isam->open_list.next->data);
my_errno=HA_ERR_WRONG_MRG_TABLE_DEF;
goto err;
}
m_info->options|= isam->s->options;
m_info->records+= isam->state->records;
m_info->del+= isam->state->del;
m_info->data_file_length+= isam->state->data_file_length;
for (i=0; i < key_parts; i++)
m_info->rec_per_key_part[i]+=isam->s->state.rec_per_key_part[i] / m_info->tables;
}
if (!m_info && !(m_info= (MYRG_INFO*) my_malloc(sizeof(MYRG_INFO),
MYF(MY_WME|MY_ZEROFILL))))
goto err;
/* Don't mark table readonly, for ALTER TABLE ... UNION=(...) to work */
m_info->options&= ~(HA_OPTION_COMPRESS_RECORD | HA_OPTION_READ_ONLY_DATA);
/* Fix fileinfo for easyer debugging (actually set by rrnd) */
file_offset=0;
for (i=0 ; (uint) i < files ; i++)
{
m_info->open_tables[i].file_offset=(my_off_t) file_offset;
file_offset+=m_info->open_tables[i].table->state->data_file_length;
}
if (sizeof(my_off_t) == 4 && file_offset > (ulonglong) (ulong) ~0L)
{
my_errno=HA_ERR_RECORD_FILE_FULL;
goto err;
}
m_info->keys=(files) ? m_info->open_tables->table->s->base.keys : 0;
m_info->keys= files ? isam->s->base.keys : 0;
bzero((char*) &m_info->by_key,sizeof(m_info->by_key));
/* this works ok if the table list is empty */
......@@ -156,19 +158,16 @@ MYRG_INFO *myrg_open(const char *name, int mode, int handle_locking)
err:
save_errno=my_errno;
switch (errpos) {
case 2:
case 3:
while (files)
mi_close(m_info->open_tables[--files].table);
my_free((char*) m_info,MYF(0));
/* Fall through */
case 2:
end_io_cache(&file);
/* Fall through */
case 1:
VOID(my_close(fd,MYF(0)));
end_io_cache(&file);
for (i=files ; i-- > 0 ; )
{
isam=last_isam;
if (i)
last_isam=(MI_INFO*) (isam->open_list.next->data);
mi_close(isam);
}
}
my_errno=save_errno;
DBUG_RETURN (NULL);
......
mysql-test/r/null.result
View file @ 412d0551
......@@ -156,3 +156,22 @@ drop table t1;
select cast(NULL as signed);
cast(NULL as signed)
NULL
create table t1(i int, key(i));
insert into t1 values(1);
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
explain select * from t1 where i=2 or i is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref_or_null i i 5 const 10 Using where; Using index
alter table t1 change i i int not null;
explain select * from t1 where i=2 or i is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref i i 4 const 7 Using where; Using index
drop table t1;
mysql-test/t/null.test
View file @ 412d0551
......@@ -98,3 +98,24 @@ explain select * from t1 where a between 2 and 3;
explain select * from t1 where a between 2 and 3 or b is null;
drop table t1;
select cast(NULL as signed);
#
# Test case for bug #4256
#
create table t1(i int, key(i));
insert into t1 values(1);
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
explain select * from t1 where i=2 or i is null;
alter table t1 change i i int not null;
explain select * from t1 where i=2 or i is null;
drop table t1;
sql/handler.cc
View file @ 412d0551
......@@ -472,7 +472,7 @@ int ha_release_temporary_latches(THD *thd)
int ha_commit_trans(THD *thd, THD_TRANS* trans)
{
int error=0;
DBUG_ENTER("ha_commit");
DBUG_ENTER("ha_commit_trans");
#ifdef USING_TRANSACTIONS
if (opt_using_transactions)
{
......@@ -480,7 +480,7 @@ int ha_commit_trans(THD *thd, THD_TRANS* trans)
bool operation_done= 0, need_start_waiters= 0;
/* If transaction has done some updates to tables */
if (trans == &thd->transaction.all &&
if (trans == &thd->transaction.all && mysql_bin_log.is_open() &&
my_b_tell(&thd->transaction.trans_log))
{
if (error= wait_if_global_read_lock(thd, 0, 0))
......@@ -576,7 +576,7 @@ int ha_commit_trans(THD *thd, THD_TRANS* trans)
int ha_rollback_trans(THD *thd, THD_TRANS *trans)
{
int error=0;
DBUG_ENTER("ha_rollback");
DBUG_ENTER("ha_rollback_trans");
#ifdef USING_TRANSACTIONS
if (opt_using_transactions)
{
......@@ -868,7 +868,7 @@ my_off_t ha_get_ptr(byte *ptr, uint pack_length)
int handler::ha_open(const char *name, int mode, int test_if_locked)
{
int error;
DBUG_ENTER("handler::open");
DBUG_ENTER("handler::ha_open");
DBUG_PRINT("enter",("name: %s db_type: %d db_stat: %d mode: %d lock_test: %d",
name, table->db_type, table->db_stat, mode,
test_if_locked));
......@@ -967,7 +967,7 @@ void handler::update_auto_increment()
{
longlong nr;
THD *thd;
DBUG_ENTER("update_auto_increment");
DBUG_ENTER("handler::update_auto_increment");
if (table->next_number_field->val_int() != 0 ||
table->auto_increment_field_not_null &&
current_thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
......@@ -1025,7 +1025,7 @@ longlong handler::get_auto_increment()
void handler::print_error(int error, myf errflag)
{
DBUG_ENTER("print_error");
DBUG_ENTER("handler::print_error");
DBUG_PRINT("enter",("error: %d",error));
int textno=ER_GET_ERRNO;
......@@ -1164,7 +1164,7 @@ bool handler::get_error_message(int error, String* buf)
uint handler::get_dup_key(int error)
{
DBUG_ENTER("get_dup_key");
DBUG_ENTER("handler::get_dup_key");
table->file->errkey = (uint) -1;
if (error == HA_ERR_FOUND_DUPP_KEY || error == HA_ERR_FOUND_DUPP_UNIQUE)
info(HA_STATUS_ERRKEY | HA_STATUS_NO_LOCK);
......
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