Create GrafanaSelectQuery Wrapper

```sql
select labels as metric
     , time
     , value
  from metrics
 where name = 'httpjson_metrics_connections_count_count'
   and $__timeFilter(time) -- <<<<<<<<-------------------------
   and value <> 'NaN'
 order by time
```

https://grafana.com/docs/features/datasources/postgres/#macros