QAN stats dont add up - default values

How to Repeat. 1. Setup PMM Server 2. Add MySQL Server with perf schema enabled 3. – create 10K tables for i in `seq 1 1 10000`; do mysql PMM_10044 -e "CREATE TABLE t_$i(t_${i} 1 int, t ${i} 2 int, t ${i} 3 int, t ${i} 4 int, t ${i} 5 int, t ${i} 6 int, t ${i} 7 int, t ${i} 8 int, t ${i} 9 int, t ${i} 10 int) engine=innodb; insert into t $i values(rand()*10000, rand()*10000, rand()*10000, rand()*10000, rand()*10000, rand()*10000, rand()*10000, rand()*10000, rand()*10000, rand()*10000);"; done – query them for i in `seq 1 1 10000`; do for j in `seq 1 1 10`; do mysql PMM_10044 -e "SELECT t_${i} ${j} from t ${i}" > /dev/null; done; done This script creates 10K tables, inserts one row into each of them, then queries each table 10 times. As you notice each query runs only once. However, QAN reports random big numbers for random queries (see attached screenshots): 4. Wait for 5 minutes 5. Check that QAN values are correct.