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[expand - 2 more] - Re: Review Request 17632: HDFS ZeroCopy Shims for Hive - Hive - [mail # dev]
...-----------------------------------------------------------This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/17632/-------------------------------------...
   Author: Gopal V, 2014-02-04, 06:11
[HIVE-6247] select count(distinct) should be MRR in Tez - Hive - [issue]
...The MR query plan for "select count(distinct) " fires off multiple reducers, with a local work task to perform final aggregation.The Tez version fires off exactly 1 reducer for the entire da...
http://issues.apache.org/jira/browse/HIVE-6247    Author: Gopal V, 2014-02-03, 23:09
[HIVE-4114] hive-metastore.jar depends on jdo2-api:jar:2.3-ec, which is missing in maven central - Hive - [issue]
...Adding hive-exec-0.10.0 to an independent pom.xml results in the following error    Failed to retrieve javax.jdo:jdo2-api-2.3-ecCaused by: Could not find artifact javax.jdo:jd...
http://issues.apache.org/jira/browse/HIVE-4114    Author: Gopal V, 2013-12-03, 18:31
[HIVE-5663] Refactor ORC RecordReader to operate on direct & wrapped ByteBuffers - Hive - [issue]
...The current ORC RecordReader implementation assumes array structures backing the ByteBuffers it passes around between RecordReaderImpl and Compressed/Uncompressed InStream objects.This patch...
http://issues.apache.org/jira/browse/HIVE-5663    Author: Gopal V, 2013-11-20, 21:06
[HIVE-5834] Avoid reading ORC footers for files which will not be split in OrcInputFormat::getSplits() - Hive - [issue]
...OrcInputFormat::getSplits() fires off a SplitGenerator task for every file in the task.The footer & data are on the same node for all files with only 1 hdfs block. On top of that, it wil...
http://issues.apache.org/jira/browse/HIVE-5834    Author: Gopal V, 2013-11-15, 22:51
[HIVE-3997] Use distributed cache to cache/localize dimension table & filter it in map task setup - Hive - [issue]
...The hive clients are not always co-located with the hadoop/hdfs cluster.This means that the dimension table filtering, when done on the client side becomes very slow. Not only that, the conv...
http://issues.apache.org/jira/browse/HIVE-3997    Author: Gopal V, 2013-11-15, 21:45
Re: Review Request 15095: Make the VectorGroupByOperator memory pressure factors configurable - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/15095/#review28670  Ship it!   Ship It!  - Gopal V   On Oct. 30, 2013, 6:10 p.m.,...
   Author: Gopal V, 2013-11-11, 18:36
Review Request 15097: Remove .array() assumptions from ORC RecordReaderImpl and InStream - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/15097/  Review request for hive and Owen O'Malley.   Bugs: HIVE-5663     https://...
   Author: Gopal V, 2013-10-30, 14:49
[HIVE-4694] Fix ORC TestVectorizedORCReader testcase for Timestamps - Hive - [issue]
...ORC vectorized tests were not testing for timestamps correctly.java.sql.Timestamp is a confusing API, because of the mix of getTime() & getNanos() usage. Though it might look like they r...
http://issues.apache.org/jira/browse/HIVE-4694    Author: Gopal V, 2013-10-23, 22:59
[HIVE-4884] ORC TimestampTreeReader.nextVector() off by a second when time in fractional - Hive - [issue]
...When using negative timestamps, the ORC vectorized Timestampreader does the followingresult.vector[i] = (result.vector[i] * 1000000) + nanoVector.vector[i];This suffers from inaccuracies bec...
http://issues.apache.org/jira/browse/HIVE-4884    Author: Gopal V, 2013-10-23, 22:59
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