set hive.support.concurrency=true; set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager; set hive.enforce.bucketing=true; create table acid_insertsort(a int, b varchar(128)) clustered by (a) sorted by (b) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true'); update acid_insertsort set b = 'fred' where b = 'bob';