[GitHub] [spark] rdblue commented on issue #24560: [SPARK-27661][SQL] Add SupportsNamespaces API

[GitBox <gi...@apache.org>]

rdblue commented on issue #24560: [SPARK-27661][SQL] Add SupportsNamespaces API
URL: https://github.com/apache/spark/pull/24560#issuecomment-490589684
 
 
   @mccheah, @jzhuge, @cloud-fan, and @marmbrus, it would be great to get feedback on this early prototype of the namespace API.
   
   I think we may want to split this into two APIs depending on how catalogs handle namespaces. Not all catalogs will explicitly create namespaces. For example, you could think of paths as namespaces for tables in S3, but paths don't exist in S3 without objects so there is no "create" operation. Namespaces exist only if there are tables or objects in them. So we could have separate interfaces for the list and exists calls and another for namespaces that have metadata, like Hive.

----------------------------------------------------------------
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:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org