If ORC reader encounters corrupt knowledge, this benefit are going to be applied to determine whether or not to skip the corrupt knowledge or toss an exception. The default habits is to toss an exception.
Range of threads utilized by partialscan/noscan analyze command for partitioned tables. This really is relevant just for file formats that put into action the StatsProvidingRecordReader interface (like ORC).
If This is often set to legitimate, mapjoin optimization in Hive/Spark will use statistics from TableScan operators at the root of the operator tree, instead of father or mother ReduceSink operators of the Join operator.
This assets is used in LDAP lookup queries when acquiring LDAP team names that a particular consumer belongs to. The value from the LDAP attribute, indicated by this home, should be a full DN to the consumer or even the quick username or userid.
A comma divided list of hooks which put into action QueryLifeTimeHook. These is going to be activated in advance of/immediately after query compilation and prior to/soon after question execution, inside the order specified.
A list of comma divided values comparable to YARN queues of exactly the same identify. When HiveServer2 is introduced in Tez mode, this configuration needs to be established for various Tez classes to run in parallel over the cluster.
No matter if column accesses are tracked during the QueryPlan. This is useful to identify how tables are accessed and to ascertain if you'll find wasted columns that Learn More could Read Full Article be trimmed.
Regardless of whether to press a limit as a result of left/right outer sign up for or union. If the worth is real and the scale with the outer enter is lowered plenty of (as laid out in hive.
The Look at interval for session/Procedure timeout, that may be disabled by location to zero or negative benefit.
The default partition title in the event that the dynamic partition column value is null/vacant string or every other values that cannot be escaped.
This flag needs to be established to genuine to allow utilization of indigenous rapid vector map join hash tables in queries employing MapJoin.
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In the whole process of Mapjoin, The main element/value will be held in the hashtable. This benefit usually means the load variable to the in-memory hashtable.
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