Commit 3a4ae93a authored by dlenev@mockturtle.local's avatar dlenev@mockturtle.local

Merge bk-internal.mysql.com:/home/bk/mysql-5.1-runtime

into  mockturtle.local:/home/dlenev/src/mysql-5.1-merge
parents a97b3d37 c06a3859
......@@ -121,6 +121,7 @@ typedef struct st_thr_lock {
void (*get_status)(void*, int); /* When one gets a lock */
void (*copy_status)(void*,void*);
void (*update_status)(void*); /* Before release of write */
void (*restore_status)(void*); /* Before release of read */
my_bool (*check_status)(void *);
} THR_LOCK;
......
......@@ -922,6 +922,27 @@ SET @@myisam_repair_threads=1;
SHOW VARIABLES LIKE 'myisam_repair%';
Variable_name Value
myisam_repair_threads 1
CREATE TABLE t1(a VARCHAR(16));
INSERT INTO t1 VALUES('aaaaaaaa'),(NULL);
UPDATE t1 AS ta1, t1 AS ta2 SET ta1.a='aaaaaaaaaaaaaaaa';
SELECT * FROM t1;
a
aaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaa
DROP TABLE t1;
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1),(2);
UPDATE t1,t1 AS t2 SET t1.a=t1.a+2 WHERE t1.a=t2.a-1;
SELECT * FROM t1 ORDER BY a;
a
2
3
DROP TABLE t1;
CREATE TABLE t1 (c1 TEXT) AVG_ROW_LENGTH=70100 MAX_ROWS=4100100100;
SHOW TABLE STATUS LIKE 't1';
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MyISAM 10 Dynamic X X X 72057594037927935 X X X X X X latin1_swedish_ci X max_rows=4100100100 avg_row_length=70100
DROP TABLE t1;
End of 4.1 tests
set storage_engine=MyISAM;
drop table if exists t1,t2,t3;
......
......@@ -847,6 +847,33 @@ DROP TABLE t1;
SET @@myisam_repair_threads=1;
SHOW VARIABLES LIKE 'myisam_repair%';
#
# BUG#21310 - Trees in SQL causing a "crashed" table with MyISAM storage
# engine
#
# A simplified test case that reflect crashed table issue.
CREATE TABLE t1(a VARCHAR(16));
INSERT INTO t1 VALUES('aaaaaaaa'),(NULL);
UPDATE t1 AS ta1, t1 AS ta2 SET ta1.a='aaaaaaaaaaaaaaaa';
SELECT * FROM t1;
DROP TABLE t1;
# A test case that reflect wrong result set.
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1),(2);
UPDATE t1,t1 AS t2 SET t1.a=t1.a+2 WHERE t1.a=t2.a-1;
SELECT * FROM t1 ORDER BY a;
DROP TABLE t1;
#
# Bug#24607 - MyISAM pointer size determined incorrectly
#
CREATE TABLE t1 (c1 TEXT) AVG_ROW_LENGTH=70100 MAX_ROWS=4100100100;
--replace_column 5 X 6 X 7 X 9 X 10 X 11 X 12 X 13 X 14 X 16 X
SHOW TABLE STATUS LIKE 't1';
DROP TABLE t1;
--echo End of 4.1 tests
......
......@@ -757,8 +757,16 @@ void thr_unlock(THR_LOCK_DATA *data)
}
else
lock->write.last=data->prev;
if (lock_type >= TL_WRITE_CONCURRENT_INSERT && lock->update_status)
if (lock_type >= TL_WRITE_CONCURRENT_INSERT)
{
if (lock->update_status)
(*lock->update_status)(data->status_param);
}
else
{
if (lock->restore_status)
(*lock->restore_status)(data->status_param);
}
if (lock_type == TL_READ_NO_INSERT)
lock->read_no_write_count--;
data->type=TL_UNLOCK; /* Mark unlocked */
......
......@@ -521,6 +521,7 @@ print <<EOF;
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
EOF
print "set sql_mode='';\n";
print "delete from help_topic;\n";
print "delete from help_category;\n";
print "delete from help_keyword;\n";
......
......@@ -873,6 +873,7 @@ fi
cat << END_OF_DATA
use mysql;
set sql_mode='';
set storage_engine=myisam;
$c_d
$i_d
......
......@@ -8,6 +8,7 @@
# this sql script.
# On windows you should do 'mysql --force mysql < mysql_fix_privilege_tables.sql'
set sql_mode='';
set storage_engine=MyISAM;
CREATE TABLE IF NOT EXISTS func (
......
......@@ -24,8 +24,6 @@
#include "sp_head.h"
#include "sql_trigger.h"
static bool safe_update_on_fly(JOIN_TAB *join_tab);
/* Return 0 if row hasn't changed */
static bool compare_record(TABLE *table)
......@@ -1160,27 +1158,71 @@ int multi_update::prepare(List<Item> &not_used_values,
for (i=0 ; i < table_count ; i++)
set_if_bigger(max_fields, fields_for_table[i]->elements);
copy_field= new Copy_field[max_fields];
DBUG_RETURN(thd->is_fatal_error != 0);
}
/*
Mark all copies of tables that are updates to ensure that
init_read_record() will not try to enable a cache on them
The problem is that for queries like
/*
Check if table is safe to update on fly
UPDATE t1, t1 AS t2 SET t1.b=t2.c WHERE t1.a=t2.a;
SYNOPSIS
safe_update_on_fly()
thd Thread handler
join_tab How table is used in join
all_tables List of tables
the row buffer may contain things that doesn't match what is on disk
which will cause an error when reading a row.
(This issue is mostly relevent for MyISAM tables)
*/
for (table_ref= leaves; table_ref; table_ref= table_ref->next_leaf)
{
TABLE *table=table_ref->table;
if ((tables_to_update & table->map) &&
unique_table(thd, table_ref, update_tables))
table->no_cache= 1; // Disable row cache
NOTES
We can update the first table in join on the fly if we know that
a row in this table will never be read twice. This is true under
the following conditions:
- We are doing a table scan and the data is in a separate file (MyISAM) or
if we don't update a clustered key.
- We are doing a range scan and we don't update the scan key or
the primary key for a clustered table handler.
- Table is not joined to itself.
This function gets information about fields to be updated from
the TABLE::write_set bitmap.
WARNING
This code is a bit dependent of how make_join_readinfo() works.
RETURN
0 Not safe to update
1 Safe to update
*/
static bool safe_update_on_fly(THD *thd, JOIN_TAB *join_tab,
TABLE_LIST *table_ref, TABLE_LIST *all_tables)
{
TABLE *table= join_tab->table;
if (unique_table(thd, table_ref, all_tables))
return 0;
switch (join_tab->type) {
case JT_SYSTEM:
case JT_CONST:
case JT_EQ_REF:
return TRUE; // At most one matching row
case JT_REF:
case JT_REF_OR_NULL:
return !is_key_used(table, join_tab->ref.key, table->write_set);
case JT_ALL:
/* If range search on index */
if (join_tab->quick)
return !join_tab->quick->is_keys_used(table->write_set);
/* If scanning in clustered key */
if ((table->file->ha_table_flags() & HA_PRIMARY_KEY_IN_READ_INDEX) &&
table->s->primary_key < MAX_KEY)
return !is_key_used(table, table->s->primary_key, table->write_set);
return TRUE;
default:
break; // Avoid compler warning
}
DBUG_RETURN(thd->is_fatal_error != 0);
return FALSE;
}
......@@ -1220,7 +1262,7 @@ multi_update::initialize_tables(JOIN *join)
table->file->extra(HA_EXTRA_IGNORE_DUP_KEY);
if (table == main_table) // First table in join
{
if (safe_update_on_fly(join->join_tab))
if (safe_update_on_fly(thd, join->join_tab, table_ref, all_tables))
{
table_to_update= main_table; // Update table on the fly
continue;
......@@ -1272,61 +1314,6 @@ multi_update::initialize_tables(JOIN *join)
DBUG_RETURN(0);
}
/*
Check if table is safe to update on fly
SYNOPSIS
safe_update_on_fly
join_tab How table is used in join
NOTES
We can update the first table in join on the fly if we know that
a row in this table will never be read twice. This is true under
the following conditions:
- We are doing a table scan and the data is in a separate file (MyISAM) or
if we don't update a clustered key.
- We are doing a range scan and we don't update the scan key or
the primary key for a clustered table handler.
This function gets information about fields to be updated from
the TABLE::write_set bitmap.
WARNING
This code is a bit dependent of how make_join_readinfo() works.
RETURN
0 Not safe to update
1 Safe to update
*/
static bool safe_update_on_fly(JOIN_TAB *join_tab)
{
TABLE *table= join_tab->table;
switch (join_tab->type) {
case JT_SYSTEM:
case JT_CONST:
case JT_EQ_REF:
return TRUE; // At most one matching row
case JT_REF:
case JT_REF_OR_NULL:
return !is_key_used(table, join_tab->ref.key, table->write_set);
case JT_ALL:
/* If range search on index */
if (join_tab->quick)
return !join_tab->quick->is_keys_used(table->write_set);
/* If scanning in clustered key */
if ((table->file->ha_table_flags() & HA_PRIMARY_KEY_IN_READ_INDEX) &&
table->s->primary_key < MAX_KEY)
return !is_key_used(table, table->s->primary_key, table->write_set);
return TRUE;
default:
break; // Avoid compler warning
}
return FALSE;
}
multi_update::~multi_update()
{
......
......@@ -780,6 +780,8 @@ static int open_binary_frm(THD *thd, TABLE_SHARE *share, uchar *head,
memcpy(comment_pos, disk_buff+read_length-com_length, com_length);
fix_type_pointers(&interval_array, &share->fieldnames, 1, &names);
if (share->fieldnames.count != share->fields)
goto err;
fix_type_pointers(&interval_array, share->intervals, interval_count,
&names);
......
......@@ -850,18 +850,19 @@ uint mi_get_pointer_length(ulonglong file_length, uint def)
if (file_length) /* If not default */
{
#ifdef NOT_YET_READY_FOR_8_BYTE_POINTERS
if (file_length >= (longlong) 1 << 56)
if (file_length >= ULL(1) << 56)
def=8;
else
#endif
if (file_length >= (longlong) 1 << 48)
if (file_length >= ULL(1) << 48)
def=7;
if (file_length >= (longlong) 1 << 40)
else if (file_length >= ULL(1) << 40)
def=6;
else if (file_length >= (longlong) 1 << 32)
else if (file_length >= ULL(1) << 32)
def=5;
else if (file_length >= (1L << 24))
else if (file_length >= ULL(1) << 24)
def=4;
else if (file_length >= (1L << 16))
else if (file_length >= ULL(1) << 16)
def=3;
else
def=2;
......
......@@ -254,7 +254,7 @@ int _mi_write_blob_record(MI_INFO *info, const byte *record)
#endif
if (!(rec_buff=(byte*) my_alloca(reclength)))
{
my_errno=ENOMEM;
my_errno= HA_ERR_OUT_OF_MEM; /* purecov: inspected */
return(-1);
}
reclength2= _mi_rec_pack(info,rec_buff+ALIGN_SIZE(MI_MAX_DYN_BLOCK_HEADER),
......@@ -288,7 +288,7 @@ int _mi_update_blob_record(MI_INFO *info, my_off_t pos, const byte *record)
#endif
if (!(rec_buff=(byte*) my_alloca(reclength)))
{
my_errno=ENOMEM;
my_errno= HA_ERR_OUT_OF_MEM; /* purecov: inspected */
return(-1);
}
reclength=_mi_rec_pack(info,rec_buff+ALIGN_SIZE(MI_MAX_DYN_BLOCK_HEADER),
......
......@@ -338,6 +338,15 @@ void mi_update_status(void* param)
}
}
void mi_restore_status(void *param)
{
MI_INFO *info= (MI_INFO*) param;
info->state= &info->s->state.state;
info->append_insert_at_end= 0;
}
void mi_copy_status(void* to,void *from)
{
((MI_INFO*) to)->state= &((MI_INFO*) from)->save_state;
......
......@@ -334,7 +334,13 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
for (j=0 ; j < share->keyinfo[i].keysegs; j++,pos++)
{
disk_pos=mi_keyseg_read(disk_pos, pos);
if (pos->flag & HA_BLOB_PART &&
! (share->options & (HA_OPTION_COMPRESS_RECORD |
HA_OPTION_PACK_RECORD)))
{
my_errno= HA_ERR_CRASHED;
goto err;
}
if (pos->type == HA_KEYTYPE_TEXT ||
pos->type == HA_KEYTYPE_VARTEXT1 ||
pos->type == HA_KEYTYPE_VARTEXT2)
......@@ -453,6 +459,13 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
offset+=share->rec[i].length;
}
share->rec[i].type=(int) FIELD_LAST; /* End marker */
if (offset > share->base.reclength)
{
/* purecov: begin inspected */
my_errno= HA_ERR_CRASHED;
goto err;
/* purecov: end */
}
if (! lock_error)
{
......@@ -518,6 +531,7 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
share->lock.get_status=mi_get_status;
share->lock.copy_status=mi_copy_status;
share->lock.update_status=mi_update_status;
share->lock.restore_status= mi_restore_status;
share->lock.check_status=mi_check_status;
}
}
......
......@@ -196,7 +196,8 @@ int mi_update(register MI_INFO *info, const byte *oldrec, byte *newrec)
save_errno=my_errno;
if (changed)
key_changed|= HA_STATE_CHANGED;
if (my_errno == HA_ERR_FOUND_DUPP_KEY || my_errno == HA_ERR_RECORD_FILE_FULL)
if (my_errno == HA_ERR_FOUND_DUPP_KEY || my_errno == HA_ERR_OUT_OF_MEM ||
my_errno == HA_ERR_RECORD_FILE_FULL)
{
info->errkey= (int) i;
flag=0;
......
......@@ -180,7 +180,7 @@ int mi_write(MI_INFO *info, byte *record)
err:
save_errno=my_errno;
if (my_errno == HA_ERR_FOUND_DUPP_KEY || my_errno == HA_ERR_RECORD_FILE_FULL ||
my_errno == HA_ERR_NULL_IN_SPATIAL)
my_errno == HA_ERR_NULL_IN_SPATIAL || my_errno == HA_ERR_OUT_OF_MEM)
{
if (info->bulk_insert)
{
......
......@@ -753,6 +753,7 @@ int mi_unique_comp(MI_UNIQUEDEF *def, const byte *a, const byte *b,
my_bool null_are_equal);
void mi_get_status(void* param, int concurrent_insert);
void mi_update_status(void* param);
void mi_restore_status(void* param);
void mi_copy_status(void* to,void *from);
my_bool mi_check_status(void* param);
void mi_disable_non_unique_index(MI_INFO *info, ha_rows rows);
......
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