Fix insert test case

Fix insert test case

Various things are done to ensure that the test case passes. Some of these
changes are not truly correct because we might not be testing what the original
test case was supposed to test, but given the limitations that we've imposed on
partition table column positions etc, this is inevitable

- accept some output changes because certain features (such as triggers) not
supported.
- make changes to column ordering so that partitions can be attached
- avoid dropping/adding columns which will change column ordering
- accept additional information displayed by \d+ command