first, so that they all work the same way, because it's getting
complicated, and second, so that we can do the appropriate thing
instead of CREATE SCHEMA for cockroachdb.
Change-Id: I27fbaeeb6223a3e06d97bcf692a2d014b31465f7
* update migration steps, add crdb support to testplanet
* add crdb support
* have jenkins run a bares bones crdb compat test
* skip crdb tests
* skip crdb tests
* fix root_piece_id column
* write crdb store to tmp dir
* escape