Ask HN: What databases are cool kids using today for microservices architecture?

- Scenario involves building a platform where relational queries, aggregation, large paginatd lists are unavoidable. - Data can be stored as json objects. - Same database software (not db instance), will be the choice for multiple microservices involving users, orders, catalog etc., - Most of the micro services are written on nodejs. - Small memory footprint, less db administration preferred.