I have ClickHouse server running in virtual environment that reports the following warning:

```
# clickhouse-client
ClickHouse client version 22.7.2.15 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 22.7.2 revision 54457.

Warnings:
 * Linux is not using a fast TSC clock source. Performance can be degraded. Check /sys/devices/system/clocksource/clocksource0/current_clocksource

# cat /sys/devices/system/clocksource/clocksource0/current_clocksource
kvm-clock
```

It looks like a false positive as kvm-clock is considered a preferable clock source for kvm-based VMs.
https://opensource.com/article/17/6/timekeeping-linux-vms

Regardless of whether it's a bug or not, I'd like to have some mechanism that allows to disable particular warnings. There are may be other questionable warnings in the future.

{
    if (storage_id.uuid != UUIDHelpers::Nil)
        return storage_id;
    if (!storage_id)
    {
        if (exception)
            exception->emplace("Both table name and UUID are empty", ErrorCodes::UNKNOWN_TABLE);
        return storage_id;
    }
    bool look_for_external_table = where & StorageNamespace::ResolveExternal;
    
    if (isGlobalContext())
        look_for_external_table = false;
    bool in_current_database = where & StorageNamespace::ResolveCurrentDatabase;
    bool in_specified_database = where & StorageNamespace::ResolveGlobal;
    if (!storage_id.database_name.empty())
    {
        if (in_specified_database)
            return storage_id;     
        if (exception)
            exception->emplace("External and temporary tables have no database, but " +
                        storage_id.database_name + " is specified", ErrorCodes::UNKNOWN_TABLE);
        return StorageID::createEmpty();
    }
    
    if (look_for_external_table)