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Merge bk-internal.mysql.com:/home/bk/mysql-4.1

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into mashka.mysql.fi:/home/my/mysql-4.1
This commit is contained in:
monty@mashka.mysql.fi
2003-11-18 17:28:33 +02:00
parent c9ae785bc3 6c5b4af81c
commit b60aea4058
4 changed files with 60 additions and 1 deletions
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22
mysql-test/r/multi_update.result
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@ -341,3 +341,25 @@ select t1.a, t1.b,t2.a, t2.b from t1 left join t2 on t1.a=t2.a where t1.b=1 and
a b a b
2 2 NULL NULL
drop table t1,t2;
create table t1 ( a int not null, b int not null) ;
alter table t1 add index i1(a);
delete from t1 where a > 2000000;
create table t2 like t1;
insert into t2 select * from t1;
select 't2 rows before small delete', count(*) from t1;
t2 rows before small delete count(*)
t2 rows before small delete 2000000
delete t1,t2 from t1,t2 where t1.b=t2.a and t1.a < 2;
select 't2 rows after small delete', count(*) from t2;
t2 rows after small delete count(*)
t2 rows after small delete 1999999
select 't1 rows after small delete', count(*) from t1;
t1 rows after small delete count(*)
t1 rows after small delete 1999999
delete t1,t2 from t1,t2 where t1.b=t2.a and t1.a < 100*1000;
select 't2 rows after big delete', count(*) from t2;
t2 rows after big delete count(*)
t2 rows after big delete 1900001
select 't1 rows after big delete', count(*) from t1;
t1 rows after big delete count(*)
t1 rows after big delete 1900001

35
mysql-test/t/multi_update.test
View File

@ -275,3 +275,38 @@ insert into t2 values (1,1), (3,1);
update t1 left join t2 on t1.a=t2.a set t1.b=2, t2.b=2 where t1.b=1 and t2.b=1 or t2.a is NULL;
select t1.a, t1.b,t2.a, t2.b from t1 left join t2 on t1.a=t2.a where t1.b=1 and t2.b=1 or t2.a is NULL;
drop table t1,t2;
#
# Test for bug #1820.
#
create table t1 ( a int not null, b int not null) ;
--disable_query_log
insert into t1 values (1,1),(2,2),(3,3),(4,4);
let $1=19;
set @d=4;
while ($1)
{
eval insert into t1 select a+@d,b+@d from t1;
eval set @d=@d*2;
dec $1;
}
--enable_query_log
alter table t1 add index i1(a);
delete from t1 where a > 2000000;
create table t2 like t1;
insert into t2 select * from t1;
select 't2 rows before small delete', count(*) from t1;
delete t1,t2 from t1,t2 where t1.b=t2.a and t1.a < 2;
select 't2 rows after small delete', count(*) from t2;
select 't1 rows after small delete', count(*) from t1;
## Try deleting many rows
delete t1,t2 from t1,t2 where t1.b=t2.a and t1.a < 100*1000;
select 't2 rows after big delete', count(*) from t2;
select 't1 rows after big delete', count(*) from t1;
#drop table t1,t2;