Distributed SQL in YugabyteDB can be queried using the WriteTime function to retrieve timestamps, per-row on-disk space usage can be checked by loading data into a table and then flushing it to disk, JSONB fields can be searched for property names using the `->>` operator, query logging can be enabled using the ysql_log_statement flag, and new documentation has been published to support the release of YugabyteDB 2.2. Various upcoming events and resources are also available for users to learn more about YugabyteDB.