mariadb/mysql-test/t/kill.test

# This test doesn't work with the embedded version as this code
# assumes that one query is running while we are doing queries on
# a second connection.
# This would work if mysqltest run would be threaded and handle each
# connection in a separate thread.
#
-- source include/not_embedded.inc

connect (con1, localhost, root,,);
connect (con2, localhost, root,,);

#remember id of con1
connection con1;
--disable_warnings
drop table if exists t1, t2, t3;
--enable_warnings

--disable_reconnect
create table t1 (kill_id int);
insert into t1 values(connection_id());

#kill con1
connection con2;
select ((@id := kill_id) - kill_id) from t1; 
kill @id;

connection con1;
--sleep 2

--disable_query_log
--disable_result_log
# One of the following statements should fail
--error 0,2006,2013
select 1;
--error 0,2006,2013
select 1;
--enable_query_log
--enable_result_log

--enable_reconnect
# this should work, and we should have a new connection_id()
select ((@id := kill_id) - kill_id) from t1;
select @id != connection_id();

#make sure the server is still alive
connection con2;
select 4;
drop table t1;
connection default;

--error 1064
kill (select count(*) from mysql.user);

#
# BUG#14851: killing long running subquery processed via a temporary table.
#
create table t1 (id int primary key);
create table t2 (id int unsigned not null);

connect (conn1, localhost, root,,);
connection conn1;

-- disable_result_log
-- disable_query_log
let $1 = 4096;
while ($1)
{
  eval insert into t1 values ($1);
  dec $1;
}
-- enable_query_log
-- enable_result_log

insert into t2 select id from t1;

create table t3 (kill_id int);
insert into t3 values(connection_id());

-- disable_result_log
send select id from t1 where id in (select distinct id from t2);
-- enable_result_log

connect (conn2, localhost, root,,);
connection conn2;
select ((@id := kill_id) - kill_id) from t3;
-- sleep 1
kill @id;

connection conn1;
-- error 1053,2013
reap;

connection default;

drop table t1, t2, t3;

# End of 4.1 tests

#
# test of blocking of sending ERROR after OK or EOF
#
connection con1;
select get_lock("a", 10);
connection con2;
let $ID= `select connection_id()`;
send select get_lock("a", 10);
real_sleep 2;
connection con1;
disable_query_log;
eval kill query $ID;
enable_query_log;
connection con2;
reap;
select 1;
connection con1;
select RELEASE_LOCK("a");