Major Description
The code below demonstrates the issue:
```
> CREATE TABLE t (id bigint, data string) USING _ PARTITIONED BY (id);
> ALTER TABLE t ADD PARTITION (id=2) LOCATION 'loc1';
> ALTER TABLE t ADD PARTITION (id=1) LOCATION 'loc' PARTITION (id=2) LOCATION 'loc1';
The following partitions already exists in table t:2 -> id
```
