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[HIVE-279] Implement predicate push down for hive queries
...Push predicates that are expressed in outer queries into inner queries where possible so that rows will get filtered out sooner.eg.select a., b. from a join b on (a.uid = b.uid) where a.age ...
, 2016-01-26, 08:42
[HIVE-874] add partitions found during metastore check
...'msck' just reports the list of partition directories that exist but do not have corresponding metadata. This can happen if a process outside of hive is populating the directories. Hive shou...
, 2015-11-11, 03:34
[HIVE-420] Support regular expressions for column in select clause
...support queries like select a.`(ds|hr)?+.+` from a where a.ds='2009-09-09' which are useful when there are humongous number of columns in a table and want to select all columns ...
, 2014-08-06, 18:40
[HIVE-38] streamline metastore options in hive-default.xml
...there are quite a few metastore configurations for hive.1) specify the type of metastore to use (sql or file – usefilestore option)2) embedded derby datbase (by setting JDBCDriverName ...
, 2014-08-05, 23:10
[HIVE-238] complex columns are not handled properly in cluster by, distributed by, sort by clauses and in some select clauses
...if a column is complex then the sub fields can't be referenced in cluster by, distributed by, sort by clausesfor example if column c1 is an object with attributes a and b then the following ...
, 2014-05-16, 19:12
[HIVE-417] Implement Indexing in Hive
...Implement indexing on Hive so that lookup and range queries are efficient....
, 2014-04-05, 22:56
[HIVE-446] Implement TRUNCATE
...truncate the data but leave the table and metadata intact....
, 2014-01-22, 06:04
[HIVE-7] Partition keys are still treated as strings irrespective of their defined type in runtime.
...RowResolver and MapOperator treat partition keys as String objects. The strings should be converted to appropriate type object in runtime....
, 2013-07-26, 06:02
[HIVE-342] TestMTQueries is broken
...It has been broken for quite sometime but the build is not failing....
, 2011-12-17, 00:09
[HIVE-228] Make ql.metadata.Partition constructor public
...This is needed in case new partitions need to be added programmatically (especially when fixing in-correct metadata)...
, 2011-12-17, 00:09
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