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A fix for Bug#22891 "session level max_allowed_packet can be

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set but is ignored".
                                  
This patch makes @@session.max_allowed_packed and
@@session.net_buffer_length read-only as suggested in the bug
report. The user will have to use SET GLOBAL (and reconnect)
to alter the session values of these variables.
                            
The error string ER_VARIABLE_IS_READONLY is introduced.
                            
Tests are modified accordingly.
This commit is contained in:
Staale Smedseng
2008-11-20 08:51:48 +01:00
parent b8cd1725b1
commit e60c8c8b68
18 changed files with 176 additions and 239 deletions
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8
mysql-test/r/union.result
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@ -1343,10 +1343,10 @@ t3 CREATE TABLE `t3` (
`left(a,100000000)` longtext
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop tables t1,t2,t3;
SELECT @tmp_max:= @@max_allowed_packet;
@tmp_max:= @@max_allowed_packet
SELECT @tmp_max:= @@global.max_allowed_packet;
@tmp_max:= @@global.max_allowed_packet
1048576
SET max_allowed_packet=25000000;
SET @@global.max_allowed_packet=25000000;
CREATE TABLE t1 (a mediumtext);
CREATE TABLE t2 (b varchar(20));
INSERT INTO t1 VALUES ('a');
@ -1384,7 +1384,7 @@ t3 CREATE TABLE `t3` (
`a` varbinary(510) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLES t1,t2,t3;
SET max_allowed_packet:= @tmp_max;
SET @@global.max_allowed_packet:= @tmp_max;
create table t1 ( id int not null auto_increment, primary key (id), col1 int);
insert into t1 (col1) values (2),(3),(4),(5),(6);
select 99 union all select id from t1 order by 1;