Ask HN: A Lightweight Data Warehouse?

I'll admit I'm unfamiliar with the warehousing landscape, but the existing solutions are quite hard to evaluate as they are all quite enterprise-y and offer too many features.

I am looking for a solution that will

- slurp data from my PostgreSQL instance into a columnar store of some kind - includes a sql-pad that my team can write and share queries on - maybe include some lightweight graphing

Thanks!