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support 'parallel' updates and rallback of whole statement in case of error in evalueting value which should be assigned

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(BUG#1484)
This commit is contained in:
bell@sanja.is.com.ua
2003-10-24 17:28:32 +03:00
parent 4e1920762a
commit f349adf8de
6 changed files with 136 additions and 59 deletions
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24
mysql-test/r/variables.result
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@ -365,3 +365,27 @@ ERROR HY000: Unknown system variable 'xxxxxxxxxx'
select 1;
1
1
select @@global.max_user_connections,@@local.max_join_size;
@@global.max_user_connections @@session.max_join_size
100 200
set @svc=@@global.max_user_connections, @svj=@@local.max_join_size;
select @@global.max_user_connections,@@local.max_join_size;
@@global.max_user_connections @@session.max_join_size
100 200
set @@global.max_user_connections=111,@@local.max_join_size=222;
select @@global.max_user_connections,@@local.max_join_size;
@@global.max_user_connections @@session.max_join_size
111 222
set @@global.max_user_connections=@@local.max_join_size,@@local.max_join_size=@@global.max_user_connections;
select @@global.max_user_connections,@@local.max_join_size;
@@global.max_user_connections @@session.max_join_size
222 111
set @@global.max_user_connections=@svc, @@local.max_join_size=@svj;
select @@global.max_user_connections,@@local.max_join_size;
@@global.max_user_connections @@session.max_join_size
100 200
set @a=1, @b=2;
set @a=@b, @b=@a;
select @a, @b;
@a @b
2 1