This flag should be established to true to help vectorizing rows applying vector deserialize. The default benefit is fake.
Should the metastore do authorization checks in opposition to the fundamental storage for functions like drop-partition (disallow the drop-partition When the user in question doesn't have permissions to delete the corresponding directory around the storage).
Optimum variety of objects (tables/partitions) could be retrieved from metastore in a single batch. The higher the selection, the fewer the volume of round journeys is needed to the Hive metastore server, however it may also trigger greater memory requirement at the consumer side.
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This flag ought to be set to accurate to help vectorized method of query execution. The default value is fake.
If enabled dictionary check will occur following to start with row index stride (default 10000 rows) else dictionary check will happen before crafting first stripe. In both instances, the choice to work with dictionary or not are going to be retained thereafter.
No matter whether Hive must routinely deliver progress info to TaskTracker when making use of UDTF's to forestall the task getting killed on account of find more info inactivity. Buyers ought to be careful since this may prevent TaskTracker from killing tasks with infinite loops.
Optimum amount of bytes a script is permitted to emit to standard error (for every map-lower task). This prevents runaway scripts from filling logs partitions to capacity.
Location this property to real could have HiveServer2 execute Hive operations as the consumer producing the phone calls to it.
A list of I/O exception handler course names. This is utilized to build a list of exception handlers to deal with exceptions thrown by history visitors.
Make column names distinctive in The end result established by qualifying column names with table alias if required. Desk alias are going to be added to column names for queries of type "find *" or if query explicitly utilizes desk alias "choose r1.x..".
This environment displays how HiveServer2 will report the table kinds More about the author for JDBC and also other customer implementations that click for more info retrieve the out there tables and supported desk types.
In the process of Mapjoin, The true secret/price is going to be held from the hashtable. This price signifies the load factor for your in-memory hashtable.
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