Home | About | Sematext search-lucene.com search-hadoop.com
clear query|facets|time Search criteria: .   Results from 1 to 10 from 92 (0.056s).
Loading phrases to help you
refine your search...
[HIVE-7222] Support timestamp column statistics in ORC and extend PPD for timestamp - Hive - [issue]
...Add column statistics for timestamp columns in ORC. Also extend predicate pushdown to support timestamp column evaluation....
http://issues.apache.org/jira/browse/HIVE-7222    Author: Prasanth J, 2014-08-20, 23:59
[HIVE-7771] ORC PPD fails for some decimal predicates - Hive - [issue]
...Some queries like select * from table where dcol<=11.22BD;fails when ORC predicate pushdown is enabled....
http://issues.apache.org/jira/browse/HIVE-7771    Author: Prasanth J, 2014-08-20, 03:34
[HIVE-7734] Join stats annotation rule is not updating columns statistics correctly - Hive - [issue]
...HIVE-7679 is not doing the correct thing. The scale down/up factor updating column stats was wrong as ratio = newRowCount/oldRowCount is always infinite (oldRowCount = 0). The old row count ...
http://issues.apache.org/jira/browse/HIVE-7734    Author: Prasanth J, 2014-08-19, 18:18
[HIVE-7548] Precondition checks should not fail the merge task in case of automatic trigger - Hive - [issue]
...ORC fast merge (HIVE-7509) will fail the merge task in case if any of the precondition checks fail. Precondition check fail is good for "ALTER TABLE .. CONCATENATE" but not for automatic tri...
http://issues.apache.org/jira/browse/HIVE-7548    Author: Prasanth J, 2014-08-19, 04:44
[HIVE-7704] Create tez task for fast file merging - Hive - [issue]
...Currently tez falls back to MR task for merge file task. It will beneficial to convert the merge file tasks to tez task to make use of the performance gains from tez....
http://issues.apache.org/jira/browse/HIVE-7704    Author: Prasanth J, 2014-08-19, 01:27
[HIVE-7679] JOIN operator should update the column stats when number of rows changes - Hive - [issue]
...JOIN operator does not update the column stats when the number of rows changes. All other operators scales up/down the column statistics when the number of rows changes. Same should be done ...
http://issues.apache.org/jira/browse/HIVE-7679    Author: Prasanth J, 2014-08-12, 18:49
[HIVE-5579] Update statistics rules for different types of joins - Hive - [issue]
...This is a followup of HIVE-5369. Current statistics rules for join operator are generic and are not specific to the type of join. Update the rules based on the type of joins....
http://issues.apache.org/jira/browse/HIVE-5579    Author: Prasanth J, 2014-08-11, 21:32
[HIVE-7231] Improve ORC padding - Hive - [issue]
...Current ORC padding is not optimal because of fixed stripe sizes within block. The padding overhead will be significant in some cases. Also padding percentage relative to stripe size is not ...
http://issues.apache.org/jira/browse/HIVE-7231    Author: Prasanth J, 2014-08-10, 00:26
[HIVE-7490] Revert ORC stripe size - Hive - [issue]
...HIVE-6037 reverted the changes to ORC stripe size introduced by HIVE-7231....
http://issues.apache.org/jira/browse/HIVE-7490    Author: Prasanth J, 2014-08-10, 00:23
[HIVE-7219] Improve performance of serialization utils in ORC - Hive - [issue]
...ORC uses serialization utils heavily for reading and writing data. The bitpacking and unpacking code in writeInts() and readInts() can be unrolled for better performance. Also double reader/...
http://issues.apache.org/jira/browse/HIVE-7219    Author: Prasanth J, 2014-08-09, 20:41
Sort:
project
Hive (92)
Pig (35)
Drill (4)
Hadoop (1)
Kafka (1)
type
issue (90)
mail # dev (1)
mail # user (1)
date
last 7 days (5)
last 30 days (21)
last 90 days (29)
last 6 months (53)
last 9 months (92)
author
Namit Jain (645)
Carl Steinbach (417)
Zheng Shao (382)
Brock Noland (362)
Ashutosh Chauhan (322)
Edward Capriolo (298)
Navis (283)
Gunther Hagleitner (226)
John Sichi (212)
Thejas M Nair (211)
Lefty Leverenz (201)
Xuefu Zhang (195)
Ning Zhang (171)
Kevin Wilfong (152)
Sergey Shelukhin (143)
He Yongqiang (139)
Harish Butani (135)
Eugene Koifman (123)
Jason Dere (121)
Thejas Nair (119)
Szehon Ho (114)
Nitin Pawar (110)
Eric Hanson (108)
Prasad Mujumdar (104)
Vaibhav Gumashta (103)
Prasanth J