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Fix for Bug #9691 UPDATE fails on attempt to update primary key

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This commit is contained in:
mskold@mysql.com 2005-04-19 11:21:26 +02:00
parent 384efc4493
commit 4193a314fb
3 changed files with 62 additions and 22 deletions
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30
mysql-test/r/ndb_update.result
View file

@ -2,12 +2,32 @@ DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
pk1 INT NOT NULL PRIMARY KEY,
b INT NOT NULL,
c INT NOT NULL
c INT NOT NULL UNIQUE
) ENGINE=ndbcluster;
INSERT INTO t1 VALUES (0, 0, 1),(1,1,2),(2,2,3);
INSERT INTO t1 VALUES (0, 1, 0),(1,2,1),(2,3,2);
UPDATE t1 set b = c;
select * from t1 order by pk1;
pk1 b c
0 1 1
1 2 2
2 3 3
0 0 0
1 1 1
2 2 2
UPDATE t1 set pk1 = 4 where pk1 = 1;
select * from t1 order by pk1;
pk1 b c
0 0 0
2 2 2
4 1 1
UPDATE t1 set pk1 = 1, c = 2 where pk1 = 4;
ERROR 23000: Duplicate entry '1' for key 1
select * from t1 order by pk1;
pk1 b c
0 0 0
2 2 2
4 1 1
UPDATE t1 set pk1 = pk1 + 10;
select * from t1 order by pk1;
pk1 b c
10 0 0
12 2 2
14 1 1
DROP TABLE IF EXISTS t1;

15
mysql-test/t/ndb_update.test
View file

@ -14,9 +14,20 @@ DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
pk1 INT NOT NULL PRIMARY KEY,
b INT NOT NULL,
c INT NOT NULL
c INT NOT NULL UNIQUE
) ENGINE=ndbcluster;
INSERT INTO t1 VALUES (0, 0, 1),(1,1,2),(2,2,3);
INSERT INTO t1 VALUES (0, 1, 0),(1,2,1),(2,3,2);
UPDATE t1 set b = c;
select * from t1 order by pk1;
UPDATE t1 set pk1 = 4 where pk1 = 1;
select * from t1 order by pk1;
-- error 1062
UPDATE t1 set pk1 = 1, c = 2 where pk1 = 4;
select * from t1 order by pk1;
UPDATE t1 set pk1 = pk1 + 10;
select * from t1 order by pk1;
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

39
sql/ha_ndbcluster.cc
View file

@ -1863,8 +1863,10 @@ int ha_ndbcluster::write_row(byte *record)
m_skip_auto_increment= !auto_increment_column_changed;
}
if ((res= set_primary_key(op)))
return res;
if ((res= (m_primary_key_update ?
set_primary_key_from_old_data(op, record)
: set_primary_key(op))))
return res;
}
// Set non-key attribute(s)
@ -2001,7 +2003,7 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data)
{
int read_res, insert_res, delete_res;
DBUG_PRINT("info", ("primary key update, doing pk read+insert+delete"));
DBUG_PRINT("info", ("primary key update, doing pk read+delete+insert"));
// Get all old fields, since we optimize away fields not in query
read_res= complemented_pk_read(old_data, new_data);
if (read_res)
@ -2009,15 +2011,7 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data)
DBUG_PRINT("info", ("pk read failed"));
DBUG_RETURN(read_res);
}
// Insert new row
insert_res= write_row(new_data);
if (insert_res)
{
DBUG_PRINT("info", ("insert failed"));
DBUG_RETURN(insert_res);
}
// Delete old row
DBUG_PRINT("info", ("insert succeded"));
m_primary_key_update= TRUE;
delete_res= delete_row(old_data);
m_primary_key_update= FALSE;
@ -2025,9 +2019,23 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data)
{
DBUG_PRINT("info", ("delete failed"));
// Undo write_row(new_data)
DBUG_RETURN(delete_row(new_data));
DBUG_RETURN(delete_res);
}
DBUG_PRINT("info", ("insert+delete succeeded"));
// Insert new row
DBUG_PRINT("info", ("delete succeded"));
insert_res= write_row(new_data);
if (insert_res)
{
DBUG_PRINT("info", ("insert failed"));
if (trans->commitStatus() == NdbConnection::Started)
{
m_primary_key_update= TRUE;
insert_res= write_row((byte *)old_data);
m_primary_key_update= FALSE;
}
DBUG_RETURN(insert_res);
}
DBUG_PRINT("info", ("delete+insert succeeded"));
DBUG_RETURN(0);
}
@ -2125,8 +2133,9 @@ int ha_ndbcluster::delete_row(const byte *record)
no_uncommitted_rows_update(-1);
// If deleting from cursor, NoCommit will be handled in next_result
DBUG_RETURN(0);
if (!m_primary_key_update)
// If deleting from cursor, NoCommit will be handled in next_result
DBUG_RETURN(0);
}
else
{