Many people are confused by various JOIN operations supported by SQL. Learn to master the SQL command line with this crash course in JOIN syntax.

If tables selected for joining have a relation defined between them, Query and Reporting joins them automatically; see Joining Tables Automatically for more information. If the tables do not have a ...

At the time, CockroachDB had three large deficits, in my opinion: Limited optimization of SQL JOIN queries, no fully managed service, and no support for JSON or Protobuf data types.