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Merge mysql.com:/home/mydev/mysql-4.1

Browse source 
into mysql.com:/home/mydev/mysql-4.1-bug6151
This commit is contained in:
ingo@mysql.com 2004-10-22 21:07:09 +02:00
commit 7916e63c5a
3 changed files with 44 additions and 2 deletions
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4
myisam/mi_delete.c
View file

@ -826,8 +826,8 @@ static uint remove_key(MI_KEYDEF *keyinfo, uint nod_flag,
else
get_key_length(rest_length,keypos);
if (next_length > prev_length)
{ /* Key after is based on deleted key */
/* Key after is based on deleted key */
{
uint pack_length,tmp;
bmove_upp((char*) keypos,(char*) (lastkey+next_length),
tmp=(next_length-prev_length));

23
mysql-test/r/key.result
View file

@ -267,3 +267,26 @@ select t from t1 where t=0xD0B1D0B1212223D0B1D0B1D0B1D0B1;
t
??!"#????
drop table t1;
DROP TABLE IF EXISTS t1;
Warnings:
Note 1051 Unknown table 't1'
CREATE TABLE t1 (
c1 int,
c2 varbinary(240),
UNIQUE KEY (c1),
KEY (c2)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'\Z\Z\Z\Z');
INSERT INTO t1 VALUES (2,'\Z\Z\Z\Z\Z\Z');
INSERT INTO t1 VALUES (3,'\Z\Z\Z\Z');
select c1 from t1 where c2='\Z\Z\Z\Z';
c1
1
3
DELETE FROM t1 WHERE (c1 = 1);
select c1 from t1 where c2='\Z\Z\Z\Z';
c1
3
DELETE FROM t1 WHERE (c1 = 3);
select c1 from t1 where c2='\Z\Z\Z\Z';
c1

19
mysql-test/t/key.test
View file

@ -252,3 +252,22 @@ select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;
select t from t1 where t=0xD0B1D0B1212223D0B1D0B1D0B1D0B1;
drop table t1;
#
# BUG#6151 - myisam index corruption
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
c1 int,
c2 varbinary(240),
UNIQUE KEY (c1),
KEY (c2)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'\Z\Z\Z\Z');
INSERT INTO t1 VALUES (2,'\Z\Z\Z\Z\Z\Z');
INSERT INTO t1 VALUES (3,'\Z\Z\Z\Z');
select c1 from t1 where c2='\Z\Z\Z\Z';
DELETE FROM t1 WHERE (c1 = 1);
select c1 from t1 where c2='\Z\Z\Z\Z';
DELETE FROM t1 WHERE (c1 = 3);
select c1 from t1 where c2='\Z\Z\Z\Z';