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[HIVE-1772] optimize join followed by a groupby - Hive - [issue]
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...explain SELECT x.key, count(1) FROM src1 x JOIN src y ON (x.key = y.key) group by x.key;STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1&n...
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http://issues.apache.org/jira/browse/HIVE-1772
Author: Namit Jain,
2012-11-05, 14:35
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Re: [DISCUSS] HCatalog becoming a subproject of Hive - Hive - [mail # dev]
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...I like the idea of Hcatalog becoming a Hive sub-project. The enhancements/bugs in the serde/metastore areas can indirectly benefit the hive community, and it will be easier for the fix to be...
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Author: Namit Jain,
2012-11-05, 04:35
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Re: number of buckets in bucket map join - Hive - [mail # dev]
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...The number of mappers is the greater common factor for all the tables. So, it it is not a multiple, a single mapper will be assigned. On 11/1/12 5:20 AM, "Mahsa Mofidpoor" wrote...
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Author: Namit Jain,
2012-11-01, 03:47
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[HIVE-3276] optimize union sub-queries - Hive - [issue]
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...It might be a good idea to optimize simple union queries containing map-reduce jobs in at least one of the sub-qeuries.For eg:a query like:insert overwrite table T1 partition P1select * from...
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http://issues.apache.org/jira/browse/HIVE-3276
Author: Namit Jain,
2012-10-31, 15:27
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[HIVE-3499] add tests to use bucketing metadata for partitions - Hive - [issue]
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...What happens if the bucketing metadata is different for different partitions ?I dont mean, different number of buckets, but what happens if the partitions are bucketed on different keys.Do w...
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http://issues.apache.org/jira/browse/HIVE-3499
Author: Namit Jain,
2012-10-31, 05:36
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[HIVE-565] support for buckets in the table being inserted - Hive - [issue]
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...While inserting into a bucketed table, the bucketing property should be maintained.Currently, it is lost....
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http://issues.apache.org/jira/browse/HIVE-565
Author: Namit Jain,
2012-10-23, 02:29
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[HIVE-3551] Add more tests where output of sort merge join is sorted - Hive - [issue]
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...As a follow-up to HIVE-3536, it would be good to have tests where a joinis being performed between a single partition of the big table with multiplepartitions of the small tables. The output...
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http://issues.apache.org/jira/browse/HIVE-3551
Author: Namit Jain,
2012-10-19, 08:03
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[HIVE-3268] expressions in cluster by are not working - Hive - [issue]
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...The following query fails:select key+key, value from src cluster by key+key, value;...
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http://issues.apache.org/jira/browse/HIVE-3268
Author: Namit Jain,
2012-10-14, 14:19
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[HIVE-3539] add an option in hive where the location for managed tables/partitions cannot be specified - Hive - [issue]
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...We run into scenarios where multiple tables/partitions point to the same data.This is OK for external tables, but may create problems for managed tables.An option should be provided to disab...
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http://issues.apache.org/jira/browse/HIVE-3539
Author: Namit Jain,
2012-10-05, 12:59
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[HIVE-3530] warnings in Hive.g - Hive - [issue]
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... Building Grammar /Users/njain/hive/hive3/ql/src/java/org/apache/hadoop/hive/ql/parse/Hive.g .... ANTLR Parser Generator Version 3.0.1 (August 13,...
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http://issues.apache.org/jira/browse/HIVE-3530
Author: Namit Jain,
2012-10-04, 18:29
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