Matvey Arye e947c6be3a Improve handling of column settings
This PR adds better handling for the following commands:

* ALTER TABLE ... ALTER COLUMN ... SET (attribute_name = value)
* ALTER TABLE ... ALTER COLUMN ... RESET (attribute_name)
* ALTER TABLE ... ALTER COLUMN ... SET STATISTICS
* ALTER TABLE ... ALTER COLUMN ... SET STORAGE

For each of the above commands the associated settings are not properly
propagated to existing chunks and new chunks are created with the
same settings as the hypertable.

We also now allow these commands to be run on chunks.
2018-07-24 14:11:53 -04:00
..
2018-07-24 14:11:53 -04:00