$CLICKHOUSE_CLIENT --multiquery --query "DROP TABLE IF EXISTS test; CREATE TABLE IF NOT EXISTS test (x UInt64, s Array(Nullable(String))) ENGINE = TinyLog;"
function thread_select {
while true;do
$CLICKHOUSE_CLIENT --query "SELECT * FROM test FORMAT Null"
sleep 0.0$RANDOM
done
}
function thread_insert {
while true;do
$CLICKHOUSE_CLIENT --query "INSERT INTO test VALUES (1, ['Hello'])"
sleep 0.0$RANDOM
done
}
export -f thread_select
export -f thread_insert
# Do randomized queries and expect nothing extraordinary happens.
timeout 10 bash -c 'thread_select'&
timeout 10 bash -c 'thread_select'&
timeout 10 bash -c 'thread_select'&
timeout 10 bash -c 'thread_select'&
timeout 10 bash -c 'thread_insert'&
timeout 10 bash -c 'thread_insert'&
timeout 10 bash -c 'thread_insert'&
timeout 10 bash -c 'thread_insert'&
wait
echo"Done"
$CLICKHOUSE_CLIENT --multiquery --query "DROP TABLE IF EXISTS test;"
