This flag ought to be established to legitimate to empower vectorizing rows employing vector deserialize. The default value is fake.
Determine the encoding technique to use while crafting knowledge. Transforming this may only have an affect on The sunshine weight encoding for integers. This flag will not alter the compression amount of greater degree compression codec (like ZLIB). Doable alternatives are Velocity and COMPRESSION.
Maximum variety of objects (tables/partitions) may be retrieved from metastore in a single batch. The higher the variety, the less the quantity of round journeys is required to the Hive metastore server, but it surely can also induce better memory prerequisite in the client facet.
Specifies a fully capable domain consumer to make use of when binding to LDAP for authentication, in place of using the consumer by itself. This allows for scenarios where by all customers haven't got look for permissions on LDAP, as a substitute requiring only the bind person to own research permissions.
This property is used in LDAP research queries when finding LDAP group names that a certain person belongs to. The value on the LDAP attribute, indicated by this assets, needs to be a full DN with the person or even the short username or userid.
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With hive.server2.session.Check out.interval established to some beneficial time worth, session will be closed when it's actually not accessed for this period of your time, which may be disabled by setting to zero or adverse benefit.
Regardless of whether to remove the union and thrust the operators between union along with the filesink higher than union. This avoids an extra scan on the output by union.
Decides if, in the event the prefix of The crucial element used for intermediate statistics selection exceeds a certain size, a hash of the key is applied as an alternative. If the worth < 0 then hashing is rarely utilized, if the worth >= 0 then hashing is made use of only when the crucial prefixes' size exceeds that price.
This residence is used in LDAP look visit their website for queries for finding LDAP group names a user belongs to. The value of this residence is accustomed to build LDAP group search query which is used to indicate what a bunch's objectClass is. Each and every LDAP group has certain objectClass. Such as: group, groupOfNames, groupOfUniqueNames and many others.
Figure out if we get yourself a skew crucial in be a part of. If we see much more than the specified variety of rows While using the exact same essential in be part of operator, we expect The main element for a skew sign up for key.
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In the course of question optimization, filters could be pushed down in the operator tree. If this config is genuine, only pushed down filters stay during the operator tree, and the original filter is eradicated. If this config is false, the click now original filter is usually left during the operator tree at the original area.
When enabled, dynamic partitioning column will probably be globally sorted. In this manner we can easily keep only one report author open up for every partition benefit during the reducer therefore minimizing the memory tension on reducers.