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nexedi
MariaDB
Commits
37d48bfe
Commit
37d48bfe
authored
17 years ago
by
davi@moksha.local
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Post-merge test case with wait_condition for Bug#28587
parent
11830073
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mysql-test/r/insert_update.result
mysql-test/r/insert_update.result
+19
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mysql-test/t/insert_update.test
mysql-test/t/insert_update.test
+35
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mysql-test/r/insert_update.result
View file @
37d48bfe
...
@@ -407,3 +407,22 @@ select if( @stamp1 = @stamp2, "correct", "wrong");
...
@@ -407,3 +407,22 @@ select if( @stamp1 = @stamp2, "correct", "wrong");
if( @stamp1 = @stamp2, "correct", "wrong")
if( @stamp1 = @stamp2, "correct", "wrong")
correct
correct
drop table t1;
drop table t1;
connection: default
set low_priority_updates=1;
drop table if exists t1;
create table t1 (a int, b int, unique key t1$a (a));
lock table t1 read;
connection: update
set low_priority_updates=1;
show variables like 'low_priority_updates';
Variable_name Value
low_priority_updates ON
insert into t1 values (1, 2) ON DUPLICATE KEY UPDATE b = 2;;
connection: select
select * from t1;
a b
connection: default
select * from t1;
a b
drop table t1;
set low_priority_updates=default;
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mysql-test/t/insert_update.test
View file @
37d48bfe
...
@@ -306,3 +306,38 @@ insert into t1(f1) values(1) on duplicate key update f1=1;
...
@@ -306,3 +306,38 @@ insert into t1(f1) values(1) on duplicate key update f1=1;
select
@
stamp2
:=
f2
from
t1
;
select
@
stamp2
:=
f2
from
t1
;
select
if
(
@
stamp1
=
@
stamp2
,
"correct"
,
"wrong"
);
select
if
(
@
stamp1
=
@
stamp2
,
"correct"
,
"wrong"
);
drop
table
t1
;
drop
table
t1
;
#
# Bug#28587 SELECT is blocked by INSERT waiting on read lock, even with low_priority_updates
#
--
echo
connection
:
default
set
low_priority_updates
=
1
;
--
disable_warnings
drop
table
if
exists
t1
;
--
enable_warnings
create
table
t1
(
a
int
,
b
int
,
unique
key
t1
$a
(
a
));
lock
table
t1
read
;
connect
(
update
,
localhost
,
root
,,);
connection
update
;
--
echo
connection
:
update
set
low_priority_updates
=
1
;
show
variables
like
'low_priority_updates'
;
let
$ID
=
`select connection_id()`
;
--
send
insert
into
t1
values
(
1
,
2
)
ON
DUPLICATE
KEY
UPDATE
b
=
2
;
connection
default
;
# we must wait till the insert opens and locks the table
let
$wait_condition
=
select
count
(
*
)
=
1
from
information_schema
.
processlist
where
state
=
"Locked"
and
id
=
$ID
;
--
source
include
/
wait_condition
.
inc
connect
(
select
,
localhost
,
root
,,);
--
echo
connection
:
select
select
*
from
t1
;
connection
default
;
--
echo
connection
:
default
select
*
from
t1
;
connection
default
;
disconnect
update
;
disconnect
select
;
drop
table
t1
;
set
low_priority_updates
=
default
;
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