:: DeveloperApi :: AggregatedDialect can unify multiple dialects into one virtual Dialect.
:: DeveloperApi :: Encapsulates everything (extensions, workarounds, quirks) to handle the SQL dialect of a certain database or jdbc driver.
:: DeveloperApi :: A database type definition coupled with the jdbc type needed to send null values to the database.
:: DeveloperApi :: Registry of dialects that apply to every new jdbc org.apache.spark.sql.DataFrame.
:: DeveloperApi :: Default mysql dialect to read bit/bitsets correctly.
:: DeveloperApi :: NOOP dialect object, always returning the neutral element.
:: DeveloperApi :: Default postgres dialect, mapping bit/cidr/inet on read and string/binary/boolean on write.