Hi
It would be terrific to get some advice on migrating a schema from RDMS to
Hive.
Should the SQL schema for HIVE be identical to the SQL schema for a
Posgresql/mysql database?
Specifically:
I have an application that generates events that look like the following:
Some general guidance would be to aim for minimal JOINs in your regular queries.
Thus the biggest change from a normal-form RDBMS schema is to denormalize such
that joins do not come in to play until a query has already performed data
reduction via filtering or aggregation. This implies a star