DescribeTable should return a UUID "TableId" in its reponse. We alread had it for CreateTable, and now this patch adds it to DescribeTable. The test for this feature is no longer xfail. Moreover, I improved the test to not only check that the TableId field is present - it should also match the documented regular expression (the standard representation of a UUID). Refs #5026 Signed-off-by: Nadav Har'El <nyh@scylladb.com> Message-Id: <20201104114234.363046-1-nyh@scylladb.com>