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No matter if to improve multi group by question to create just one M/R job approach. If your multi group by query has widespread team by keys, it will be optimized to generate one M/R career. (This configuration property was removed in launch 0.nine.0.)

Whether or not to check, transform, and normalize partition benefit laid out in partition specification to conform towards the partition column sort.

Makes it possible for HiveServer2 to deliver development bar update info. This is now available provided that the execution engine is tez.

LDAP attribute name on the consumer item which contains groups of which the user is usually a direct member, apart from the first team, which is represented via the primaryGroupId. For instance: memberOf.

If This is often established to genuine, mapjoin optimization in Hive/Spark will use source file dimensions related to the TableScan operator on the basis of the operator tree, in place of making use of operator statistics.

Whether to make a separate program for skewed keys for your tables within the sign up for. This is based to the skewed keys saved while in the metadata. At compile time, the program is broken into various joins: 1 for your skewed keys, and the other with the remaining keys.

The host tackle the HiveServer2 World-wide-web UI will hear on. The internet UI may be used to entry the HiveServer2 configuration, area logs, and metrics. It may also be applied to examine some specifics of Lively classes and queries remaining executed.

When hive.optimize.limittranspose is accurate, this variable specifies the minimum percentage (fractional) reduction from the size from the outer input from the be a part of or input on the union the optimizer need to get in order to implement the rule.

Whether to make use of a binary research to find the entries in an index desk that match the filter, in which probable.

The Hive/Tez optimizer estimates have a peek here the info dimension flowing via each in the operators. The JOIN operator uses column statistics to estimate the number of rows flowing away from it and hence the info dimensions.

If the quantity of keys within a dictionary is bigger than this fraction of the overall quantity of non-null rows, turn off dictionary encoding. Use 1 to always use dictionary encoding.

Utilizing this regex instead of updating the original regex for hive.safety.authorization.sqlstd.confwhitelist means you can append to your default that's set by SQL standard authorization rather than replacing it entirely.

Results in important schema over a startup if one particular isn't going to exist. Set this to Bogus, soon after generating it after.

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