[GitHub] [spark] viirya commented on pull request #31548: [SPARK-34127][SQL] Support table valued command

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

viirya commented on pull request #31548:
URL: https://github.com/apache/spark/pull/31548#issuecomment-814744497


   > Ah good point. One way is to eagerly execute the command when creating the view, so `v` is excluded from the result, but it's a bit tricky to make the view not lazy.
   > 
   > Another idea is to allow SHOW TABLES etc. as subqueries, e.g. `SELECT ... FROM (SHOW TABLES)`.
   
   Making a non lazy view sounds weird to me. We then create another kind of special view just for this kind of commands.
   
   The subquery approach looks more promising to me.
   


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