Cannot create Kudu table because primary key constraints are not supported

[zslim]

Even though Kudu support was introduced in this commit, it cannot be used as of now, since this commit prevents to use primary key constraints. A Kudu table requires at least one primary key. The test case in commit d0a2fb is incomplete for the same reason, it should contain at least one primary key (this would've shown the problem too).

[zslim]

Kudu table creation works fine with impyla version 0.17a7.