Thanks for clarification, Wenchen.
I’ll create JIRA for item 2 and do some investigation on UDF catalog.
From: Wenchen Fan
Date: Monday, January 13, 2020 at 4:17 PM
To: "colinma(马骏杰)"
Cc: "dev@spark.apache.org"
Subject: Re: Question about Datasource V2(Internet mail)
1.
1. we plan to add view support in future releases.
2. can you open a JIRA ticket? This seems like a bug to me.
3. instead of defining a lot of fields in the table, we decide to use
properties to keep all the extra information. We've defined some reserved
properties like "comment", "location", which
