This flag ought to be set to real to permit vectorizing rows working with vector deserialize. The default value is false.
Whether to examine, transform, and normalize partition value specified in partition specification to conform into the partition column variety.
When hive.enhance.limittranspose is correct, this variable specifies the minimal reduction in the range of tuples in the outer input from the sign up for or input in the union which the optimizer should get in an effort to utilize the rule.
Sizing on the wait queue for async thread pool in HiveServer2. After hitting this limit, the async thread pool will reject new requests.
Adjustment to mapjoin hashtable measurement derived from desk and column statistics; the estimate of the quantity of keys is divided by this worth. If the value is 0, statistics are not made use of and hive.hashtable.initialCapacity is utilized instead.
Irrespective of whether to create a separate strategy for skewed keys for your tables within the be part of. This relies about the skewed keys saved in the metadata. At compile time, the strategy is damaged into distinctive joins: one for your skewed keys, and the opposite for your remaining keys.
The amount of compactor worker threads to run on this metastore instance. Set this into a favourable variety on one or more scenarios from the Thrift metastore support as my blog A part of turning on Hive transactions. For a whole listing of parameters essential for turning on transactions, see hive.txn.supervisor.
To protect the cluster, this controls the amount of partitions may be scanned for every partitioned desk. The default price "-1" suggests no limit. The limit on partitions would not have an impact on metadata-only queries.
The most information size for your dimension desk that generates partition More hints pruning data. If reaches this limit, the optimization will be turned off.
Establish the amount of map endeavor at most used in the observe up map sign up for career to get a skew be part of by specifying the minimum split sizing. It should be made use of together with hive.skewjoin.mapjoin.map.responsibilities to conduct a fine grained Manage.
Chooses no matter whether question fragments will operate in a container or find this in LLAP. When set to "all" almost everything operates in LLAP if at all possible; "only" is like "all" but disables fallback to containers, so the question fails if it can't operate in LLAP.
Besides the Hive metastore Attributes outlined With this portion, some Houses are shown in other sections:
A user-specified personalized LDAP question that may be utilized to grant/deny an authentication request. When the person is a component of the question's outcome set, authentication succeeds. See Personalized Query String for facts.
This location displays how HiveServer2 will report the desk sorts for JDBC and various customer implementations that retrieve the offered tables and supported table kinds.