As part of IMPALA-9487 <https://issues.apache.org/jira/browse/IMPALA-9487>, I've proposed adding a new column to 'SHOW FILES' and 'SHOW PARTITIONS' output to display the erasure coding policy used (if any). I've also proposed adding a new row to 'DESCRIBE EXTENDED' output. Examples are in the ticket.
I don't think adding a new row to 'DESCRIBE EXTENDED' is controversial. However adding new columns to output that only show useful data when using erasure coded storage might impact some of our users. I don't see any changes to the format of 'SHOW FILES' or 'SHOW PARTITIONS' since they were added except IMPALA-1595 <https://issues.apache.org/jira/browse/IMPALA-1595> . Does anyone have concerns with adding new columns?