(Ozgun from Citus) Citus extends PostgreSQL to make it a distributed database. In comparison, Cockroach builds the entire database from scratch and provides ov

(Ozgun from Citus) Citus extends PostgreSQL to make it a distributed database. In comparison, Cockroach builds the entire database from scratch and provides over the wire compatibility. For our users, this means that they get the following benefits. 1. PostgreSQL Features I can think of the following features that our customers started using as they landed into core Postgres (there's probably many more): * Rich data types. For example, jsonb, hstore, XML, and HyperLogLog * Declarative partitioning. You can shard your tables and then partition them * Performance improvements. Postgres 10 improves analytical query performance by 30-40%, and PG 11 will add another 3x. For Citus customers, they will get these performance benefits at scale. 2. Application Integration If you already have an app built on Postgres, migrating to Citus should be significantly easier than moving to a new database. Some benefits I can think of are: * You can pg_dump your Postgres schema and data. You can then load this data into Citus. * If you need live migrations, you can use Citus Warp to stream changes from your Postgres database to Citus * Native integration with hundreds of tools already in the Postgres world - data visualization, monitoring, backups, upgrades, and app frameworks such as Rails and Django. 3. Organizational Skills Since Citus extends (it's practically) Postgres, you benefit from organizational skills created worldwide by running millions of Postgres applications. All know-how around how to configure your Postgres database, when to create indexes and database constraints, and how to tune your queries directly applies to Citus. I hope this helps. If this doesn't help clarify things, could you let me know?