mariadb/mysql-test/main/kill_processlist-6619.test

#
# MDEV-6619 SHOW PROCESSLIST returns empty result set after KILL QUERY
#
--source include/not_embedded.inc
--source include/have_debug_sync.inc

let $wait_condition=select count(*) = 1 from information_schema.processlist;
source include/wait_condition.inc;

--connect (con1,localhost,root,,)
--let $con_id = `SELECT CONNECTION_ID()`

let $wait_condition=select info is NULL from information_schema.processlist where id != $con_id;
source include/wait_condition.inc;

--replace_result Execute Query
--replace_column 1 # 3 # 6 # 7 #
SHOW PROCESSLIST;
SET DEBUG_SYNC='before_execute_sql_command SIGNAL ready WAIT_FOR go';
send SHOW PROCESSLIST;
--connection default
# We must wait for the SHOW PROCESSLIST query to have started before sending
# the kill. Otherwise, the KILL may be lost since it is reset at the start of
# query execution.
SET DEBUG_SYNC='now WAIT_FOR ready';
--replace_result $con_id con_id
eval KILL QUERY $con_id;
SET DEBUG_SYNC='now SIGNAL go';
--connection con1
--error ER_QUERY_INTERRUPTED
reap;
SET DEBUG_SYNC='reset';

# Wait until default connection has reset query string
let $wait_condition=
  SELECT COUNT(*) = 1 from information_schema.processlist
  WHERE info is NULL;
--source include/wait_condition.inc

--replace_result Execute Query
--replace_column 1 # 3 # 6 # 7 #
SHOW PROCESSLIST;