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Commit 418c1f30 authored by istruewing@chilla.local's avatar istruewing@chilla.local
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Merge bk-internal.mysql.com:/home/bk/mysql-5.0-engines 

into  chilla.local:/home/mydev/mysql-5.0--team
parents d8e27606 97b52dad
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Showing with 181 additions and 24 deletions
myisam/mi_rkey.c
View file @ 418c1f30
......@@ -94,28 +94,42 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
myisam_read_vec[search_flag], info->s->state.key_root[inx]))
{
/*
If we are searching for an exact key (including the data pointer)
and this was added by an concurrent insert,
then the result is "key not found".
If we searching for a partial key (or using >, >=, < or <=) and
the data is outside of the data file, we need to continue searching
for the first key inside the data file
*/
if ((search_flag == HA_READ_KEY_EXACT) &&
(info->lastpos >= info->state->data_file_length))
if (info->lastpos >= info->state->data_file_length &&
(search_flag != HA_READ_KEY_EXACT ||
last_used_keyseg != keyinfo->seg + keyinfo->keysegs))
{
my_errno= HA_ERR_KEY_NOT_FOUND;
info->lastpos= HA_OFFSET_ERROR;
}
else while (info->lastpos >= info->state->data_file_length)
{
/*
Skip rows that are inserted by other threads since we got a lock
Note that this can only happen if we are not searching after an
exact key, because the keys are sorted according to position
*/
if (_mi_search_next(info, keyinfo, info->lastkey,
info->lastkey_length,
myisam_readnext_vec[search_flag],
info->s->state.key_root[inx]))
break;
do
{
uint not_used[2];
/*
Skip rows that are inserted by other threads since we got a lock
Note that this can only happen if we are not searching after an
full length exact key, because the keys are sorted
according to position
*/
if (_mi_search_next(info, keyinfo, info->lastkey,
info->lastkey_length,
myisam_readnext_vec[search_flag],
info->s->state.key_root[inx]))
break;
/*
Check that the found key does still match the search.
_mi_search_next() delivers the next key regardless of its
value.
*/
if (search_flag == HA_READ_KEY_EXACT &&
ha_key_cmp(keyinfo->seg, key_buff, info->lastkey, use_key_length,
SEARCH_FIND, not_used))
{
my_errno= HA_ERR_KEY_NOT_FOUND;
info->lastpos= HA_OFFSET_ERROR;
break;
}
} while (info->lastpos >= info->state->data_file_length);
}
}
}
......
mysql-test/r/index_merge.result
View file @ 418c1f30
......@@ -424,3 +424,34 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 index_merge a,b a,b 5,5 NULL # Using intersect(a,b); Using where
drop table t3;
drop table t0, t1, t2;
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1);
CREATE TABLE t2(a INT, b INT, dummy CHAR(16) DEFAULT '', KEY(a), KEY(b));
INSERT INTO t2(a,b) VALUES
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(1,2);
LOCK TABLES t1 WRITE, t2 WRITE;
INSERT INTO t2(a,b) VALUES(1,2);
SELECT t2.a FROM t1,t2 WHERE t2.b=2 AND t2.a=1;
a
1
1
UNLOCK TABLES;
DROP TABLE t1, t2;
mysql-test/r/myisam.result
View file @ 418c1f30
......@@ -515,6 +515,34 @@ select c1 from t1 order by c1 limit 1;
c1
a
drop table t1;
create table t1 (a int not null, primary key(a));
create table t2 (a int not null, b int not null, primary key(a,b));
insert into t1 values (1),(2),(3),(4),(5),(6);
insert into t2 values (1,1),(2,1);
lock tables t1 read local, t2 read local;
select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
a a b
1 1 1
2 2 1
insert into t2 values(2,0);
select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
a a b
1 1 1
2 2 1
drop table t1,t2;
CREATE TABLE t1 (c1 varchar(250) NOT NULL);
CREATE TABLE t2 (c1 varchar(250) NOT NULL, PRIMARY KEY (c1));
INSERT INTO t1 VALUES ('test000001'), ('test000002'), ('test000003');
INSERT INTO t2 VALUES ('test000002'), ('test000003'), ('test000004');
LOCK TABLES t1 READ LOCAL, t2 READ LOCAL;
SELECT t1.c1 AS t1c1, t2.c1 AS t2c1 FROM t1, t2
WHERE t1.c1 = t2.c1 HAVING t1c1 != t2c1;
t1c1 t2c1
INSERT INTO t2 VALUES ('test000001'), ('test000005');
SELECT t1.c1 AS t1c1, t2.c1 AS t2c1 FROM t1, t2
WHERE t1.c1 = t2.c1 HAVING t1c1 != t2c1;
t1c1 t2c1
DROP TABLE t1,t2;
CREATE TABLE t1 (`a` int(11) NOT NULL default '0', `b` int(11) NOT NULL default '0', UNIQUE KEY `a` USING RTREE (`a`,`b`)) ENGINE=MyISAM;
Got one of the listed errors
create table t1 (a int, b varchar(200), c text not null) checksum=1;
......
mysql-test/t/index_merge.test
View file @ 418c1f30
......@@ -383,3 +383,35 @@ explain select * from t3 where a=1 and b=1;
drop table t3;
drop table t0, t1, t2;
#
# BUG#20256 - LOCK WRITE - MyISAM
#
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1);
CREATE TABLE t2(a INT, b INT, dummy CHAR(16) DEFAULT '', KEY(a), KEY(b));
INSERT INTO t2(a,b) VALUES
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(1,2);
LOCK TABLES t1 WRITE, t2 WRITE;
INSERT INTO t2(a,b) VALUES(1,2);
SELECT t2.a FROM t1,t2 WHERE t2.b=2 AND t2.a=1;
UNLOCK TABLES;
DROP TABLE t1, t2;
mysql-test/t/myisam.test
View file @ 418c1f30
......@@ -488,6 +488,42 @@ insert into t1 values ('a'), ('b');
select c1 from t1 order by c1 limit 1;
drop table t1;
#
# Bug #14400 Join could miss concurrently inserted row
#
# Partial key.
create table t1 (a int not null, primary key(a));
create table t2 (a int not null, b int not null, primary key(a,b));
insert into t1 values (1),(2),(3),(4),(5),(6);
insert into t2 values (1,1),(2,1);
lock tables t1 read local, t2 read local;
select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
connect (root,localhost,root,,test,$MASTER_MYPORT,master.sock);
insert into t2 values(2,0);
disconnect root;
connection default;
select straight_join * from t1,t2 force index (primary) where t1.a=t2.a;
drop table t1,t2;
#
# Full key.
CREATE TABLE t1 (c1 varchar(250) NOT NULL);
CREATE TABLE t2 (c1 varchar(250) NOT NULL, PRIMARY KEY (c1));
INSERT INTO t1 VALUES ('test000001'), ('test000002'), ('test000003');
INSERT INTO t2 VALUES ('test000002'), ('test000003'), ('test000004');
LOCK TABLES t1 READ LOCAL, t2 READ LOCAL;
SELECT t1.c1 AS t1c1, t2.c1 AS t2c1 FROM t1, t2
WHERE t1.c1 = t2.c1 HAVING t1c1 != t2c1;
connect (con1,localhost,root,,);
connection con1;
INSERT INTO t2 VALUES ('test000001'), ('test000005');
disconnect con1;
connection default;
SELECT t1.c1 AS t1c1, t2.c1 AS t2c1 FROM t1, t2
WHERE t1.c1 = t2.c1 HAVING t1c1 != t2c1;
DROP TABLE t1,t2;
# End of 4.0 tests
#
# Test RTREE index
#
......
sql/ha_myisam.cc
View file @ 418c1f30
......@@ -169,6 +169,14 @@ ha_myisam::ha_myisam(TABLE *table_arg)
can_enable_indexes(1)
{}
handler *ha_myisam::clone(MEM_ROOT *mem_root)
{
ha_myisam *new_handler= static_cast <ha_myisam *>(handler::clone(mem_root));
if (new_handler)
new_handler->file->state= file->state;
return new_handler;
}
static const char *ha_myisam_exts[] = {
".MYI",
......
sql/ha_myisam.h
View file @ 418c1f30
......@@ -45,6 +45,7 @@ class ha_myisam: public handler
public:
ha_myisam(TABLE *table_arg);
~ha_myisam() {}
handler *clone(MEM_ROOT *mem_root);
const char *table_type() const { return "MyISAM"; }
const char *index_type(uint key_number);
const char **bas_ext() const;
......
sql/handler.cc
View file @ 418c1f30
......@@ -1374,6 +1374,15 @@ int ha_delete_table(THD *thd, enum db_type table_type, const char *path,
/****************************************************************************
** General handler functions
****************************************************************************/
handler *handler::clone(MEM_ROOT *mem_root)
{
handler *new_handler= get_new_handler(table, mem_root, table->s->db_type);
if (new_handler && !new_handler->ha_open(table->s->path, table->db_stat,
HA_OPEN_IGNORE_IF_LOCKED))
return new_handler;
return NULL;
}
/* Open database-handler. Try O_RDONLY if can't open as O_RDWR */
/* Don't wait for locks if not HA_OPEN_WAIT_IF_LOCKED is set */
......
sql/handler.h
View file @ 418c1f30
......@@ -563,6 +563,7 @@ public:
pushed_cond(NULL)
{}
virtual ~handler(void) { /* TODO: DBUG_ASSERT(inited == NONE); */ }
virtual handler *clone(MEM_ROOT *mem_root);
int ha_open(const char *name, int mode, int test_if_locked);
void adjust_next_insert_id_after_explicit_value(ulonglong nr);
bool update_auto_increment();
......
sql/opt_range.cc
View file @ 418c1f30
......@@ -1034,10 +1034,7 @@ int QUICK_RANGE_SELECT::init_ror_merged_scan(bool reuse_handler)
}
THD *thd= current_thd;
if (!(file= get_new_handler(head, thd->mem_root, head->s->db_type)))
goto failure;
DBUG_PRINT("info", ("Allocated new handler %p", file));
if (file->ha_open(head->s->path, head->db_stat, HA_OPEN_IGNORE_IF_LOCKED))
if (!(file= head->file->clone(thd->mem_root)))
{
/* Caller will free the memory */
goto failure;
......
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