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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
[HIVE-4423] Improve RCFile::sync(long) 10x - Hive - [issue]
...RCFile::sync(long) takes approx ~1 second everytime it gets called because of the inner loops in the function.From what was observed with HDFS-4710, single byte reads are an order of magnitu...
http://issues.apache.org/jira/browse/HIVE-4423    Author: Gopal V, 2013-10-16, 00:31
[HIVE-5345] Operator::close() leaks Operator::out, holding reference to buffers - Hive - [issue]
...When processing multiple splits on the same operator pipeline, the output collector in Operator has a held reference, which causes issues.Operator::close() does not de-reference the OutputCo...
http://issues.apache.org/jira/browse/HIVE-5345    Author: Gopal V, 2013-09-25, 19:27
[HIVE-5170] Sorted Bucketed Partitioned Insert hard-codes the reducer count == bucket count - Hive - [issue]
...When performing a hive sorted-partitioned insert, the insert optimizer hard-codes the number of output files to the actual bucket count of the table.https://github.com/apache/hive/blob/trunk...
http://issues.apache.org/jira/browse/HIVE-5170    Author: Gopal V, 2013-09-23, 16:46
[HIVE-4113] Optimize select count(1) with RCFile and Orc - Hive - [issue]
...select count(1) loads up every column & every row when used with RCFile."select count(1) from store_sales_10_rc" givesJob 0: Map: 5  Reduce: 1   Cumulative CPU: 31.73 sec  ...
http://issues.apache.org/jira/browse/HIVE-4113    Author: Gopal V, 2013-09-22, 21:57
[HIVE-4757] LazyTimestamp goes into irretrievable NULL mode once inited with NULL once - Hive - [issue]
...The LazyTimestamp.init() code turns into a NULL generator after parsing the very first NULL value (or format error). The code is as follows     Timestamp t = null;  ...
http://issues.apache.org/jira/browse/HIVE-4757    Author: Gopal V, 2013-09-06, 23:27
[HIVE-5093] Use a combiner for LIMIT with GROUP BY and ORDER BY operators - Hive - [issue]
...Operator trees of the following structure can have a memory friendly combiner put in place after the sort-phase "GBY-LIM" and "OBY-LIM"This will cut down on I/O when spilling to disk and par...
http://issues.apache.org/jira/browse/HIVE-5093    Author: Gopal V, 2013-08-28, 17:18
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