HAWQ-1556. enable ALTER SCHEMA RENAME/OWNER

[kuien]

No description provided.

[kuien]

CI failed with strange error, it seems irrelevant to the pr, is it right?

configure: error: Please install apr from http://apr.apache.org/ and add dir of 'apr-1-config' to env variable '/Users/travis/.rvm/gems/ruby-2.4.2/bin:/Users/travis/.rvm/gems/ruby-2.4.2@global/bin:/Users/travis/.rvm/rubies/ruby-2.4.2/bin:/Users/travis/.rvm/bin:/Users/travis/bin:/Users/travis/.local/bin:/Users/travis/.nvm/versions/node/v6.11.4/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin'.

The command "./configure" failed and exited with 1 during .

[outofmem0ry]

@kuien yes, you are right this is not relevant to the PR. Please see https://issues.apache.org/jira/browse/HAWQ-1559, just created it. Also, initiated a discussion on mailing thread.

[radarwave]

Seems alter schema is disabled with intentional.

Anyone knows the background why we disabled it?