Subscription on Aggregated Metrics

It is a subscription to the results of Query Aggregated Metrics. Query can be converted to subscription by replacing query word with subscription.

With every new block the aggregate will be calculated over the new data and update to the aggregates will be sent as a result. Note that in this case you will not get the re-calculation of the whole query, but the update to the previously calculated aggregate.

This subscription is appropriate when:

1. application is not capable to process raw stream of the data;
2. the new data is used to be displayed or used inside the application in an aggregated form.