ClickHouse, Druid, Pinot#

• Column-oriented RBMS
• OLAP (Online Analytical Processing)
• data warehouse and analysis

Cassandra / ScyllaDB#

• wide-column store
• OLTP (Online Transactional Processing)
• high throughput and low latency transactions

Redis#

• populate

Postgres / MySQL#

• OLTP (Online Transactional Processing)

Unordered#

• Rockset
• RocksDB
• InfluxDB
• Prometheus

Readings#

• https://devopsprodigy.com/blog/chose-the-right-time-series-database/