List of comma-separated keys taking place in desk properties which will get inherited to recently made partitions. * indicates each of the keys can get inherited.
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When genuine, this activates dynamic partition pruning with the Spark engine, to make sure that joins on partition keys is going to be processed by producing to A brief HDFS file, and browse later on for getting rid of unneeded partitions.
Adjustment to mapjoin hashtable dimensions derived from desk and column statistics; the estimate of the quantity of keys is divided by this benefit. If the value is 0, statistics are usually not applied and hive.hashtable.initialCapacity is applied in its place.
Regardless of whether to create a individual strategy for skewed keys for your tables during the be part of. This is based to the skewed keys stored within the metadata. At compile time, the approach is broken into distinct joins: a person for the skewed keys, and the other to the remaining keys.
In the process of Mapjoin, the key/price will be held inside the hashtable. This worth means the load issue for your in-memory hashtable.
For conditional joins, if enter stream from a little alias might review be directly applied to the join operator devoid of filtering or projection, the alias need not be pre-staged from the distributed cache by means of a mapred neighborhood task. At the moment, this isn't dealing with vectorization or Tez execution engine.
A comma separated list of people that may be additional to the ADMIN position once the metastore begins up. Much more consumers can nonetheless be added later on.
Highest range of entries inside the vector GROUP BY aggregation hashtables. Exceeding this could trigger a flush irrespective of memory tension condition.
When genuine the HDFS site stored within the index file will likely be dismissed at runtime. If the info obtained moved or even the name of your cluster acquired transformed, the index information should however be usable.
This flag needs to be set to genuine to empower vector map be part of hash tables to implement max / max filtering for integer be a part of queries making use of MapJoin.
The privileges mechanically granted to some roles Every time a table receives designed. An instance like "roleX,roleY:select;roleZ:build" will grant find privilege to roleX and roleY, and grant make privilege to roleZ Every time a whole new table designed.
This placing reflects how HiveServer2 will report the desk sorts for JDBC together with other consumer implementations that retrieve the accessible tables and supported table styles.