Hi does Airbyte support data aggregation at source

You mean getting data from different places to one place or do you have something else in mind? It would be great to explain your usecase in more details

1. Multiple Sources 2. Aggregation functions on the source systems

Didn't get the aggregation functions but yeah you can configure multiple sources to one destination

data aggregation by time period

Yeah you can set frequency for each connection so that they can sync like every hour/12 hours etc