QAN: truncated queries don't show up in QAN with certain filters

User impact:

Truncated queries don't show up in QAN when user filters by Node Name, Database, User Name, ...

Steps to reproduce:

Add a service to monitoring with pmm-admin with --max-query-length flag

pmm-admin add mysql --username=msandbox --password=msandbox --max-query-length=10 slow-max-10 --cluster=MYSQLCLUST 127.0.0.1:8031

Go to QAN and filter queries by Service Name "slow-max-10" >> only queries truncated after 10 char listed
Now filter queries by User Name "msandbox" >> none of the listed queries is truncated

Actual result:

Some filters give unexpected results

Expected result:

We should see truncated queries too with all filters

Workaround:

Details:

Peek 2022-11-03 17-24.webm