Postgres change-capture device that supports high-throughput and low-latency capture to a variety of sinks (at first release, just Google BigQuery):
https://github.com/lawrencejones/pgsink
I know there's debezium and Netflix's dblog, but this project aims to be much simpler.
Forget about kafka and any other dependency: just point it at Postgres, and your data will be pushed into BigQuery. And for people with highly-performance-sensitive databases, the read workload has been designed with Postgres efficiency in mind.
I'm hoping pgsink could be a gateway drug to get small companies up and running with a data warehouse. If your datastore of choice is Postgres, it's a huge help to replicate everything into an analytics datastore. A similar tool has helped my company extract expensive work out of our primary database, which is super useful for scaling (nevermind the business-intelligence and data-engineering uses!).
The project is 90% there, about 10hrs and some testing away from being useable. Once there, I'll be hitting up some start-up friends and seeing if they want to give it a whirl.