Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/14531
@rxin Hive does not copy the table comments but it copy the column
comments. The [document of
Postgres](https://www.postgresql.org/docs/9.1/static/sql-createtable.html)
shows it does not do it even for column comments unless you specify `INCLUDING
COMMENTS`:
> Comments for the copied columns, constraints, and indexes will only be
copied if INCLUDING COMMENTS is specified. The default behavior is to exclude
comments, resulting in the copied columns and constraints in the new table
having no comments.
Regarding the temp table, we can do it. I do not know why it is excluded in
the original PR. Basically, we need to populate the storage format using the
default one. Anyway, let me add it.
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