LantaoJin commented on pull request #28901: URL: https://github.com/apache/spark/pull/28901#issuecomment-654047474
> For a proper support, this requires more discussions about the semantics. > > Also, we need to list the expected behaviors for all the statements listed in https://spark.apache.org/docs/latest/sql-ref-syntax.html . > > So far, this PR and design doc does not have the corresponding contents. Sure, if you could tell me more about what do we need to discuss and what details should be written in documentation, that would be very helpful to me. About the concept of "temporary table", I think it is widly used in database domain: MySQL, PostgreSQL, Oracle etc, also in data warehouse domain: Hive, Teradata etc. Even though their implementations and grammar maybe different more or less, the purposes are similar in my opinion. This implementation and grammar of `Spark temporary table` mainly references [Hive](https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.0.1/using-hiveql/content/hive_create_a_hive_temporary_table.html) and [PostgreSQL](https://www.postgresql.org/docs/12/sql-createtable.html). They are basicly same. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
