OCI-02560
cannot modify partitions or subpartitions of string in system-managed or composite sharding.
Cause
An attempt was made to modify partitions or subpartitions of sharded tables or indexes in system-managed or composite sharding.
Action
Use the 'gdsctl split chunk' or 'move chunk' commands instead. For truncating partitions of sharded tables, marking local indexes unusable or rebuilding partitions of local indexes, perform the operation on the shard with shard operations enabled.