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[HIVE-6382] PATCHED_BLOB encoding in ORC will corrupt data in some cases - Hive - [issue]
...In PATCHED_BLOB encoding (added in HIVE-4123), gapVsPatchList is an array of long that stores gap (g) between the values that are patched and the patch value (p). The maximum distance of gap...
http://issues.apache.org/jira/browse/HIVE-6382    Author: Prasanth J, 2014-07-02, 08:50
[HIVE-6455] Scalable dynamic partitioning and bucketing optimization - Hive - [issue]
...The current implementation of dynamic partition works by keeping at least one record writer open per dynamic partition directory. In case of bucketing there can be multispray file writers wh...
http://issues.apache.org/jira/browse/HIVE-6455    Author: Prasanth J, 2014-06-30, 01:31
[HIVE-7051] Display partition level column stats in DESCRIBE EXTENDED/FORMATTED PARTITION - Hive - [issue]
...Same as HIVE-7050 but for partitions...
http://issues.apache.org/jira/browse/HIVE-7051    Author: Prasanth J, 2014-06-23, 10:05
[HIVE-7250] Adaptive compression buffer size for wide tables in ORC - Hive - [issue]
...If the input table is wide (in the order of 1000s), ORC compression buffer size overhead becomes significant causing OOM issues. To overcome this issue, buffer size should be adaptively chos...
http://issues.apache.org/jira/browse/HIVE-7250    Author: Prasanth J, 2014-06-20, 08:54
[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, 2014-06-19, 20:56
[HIVE-7050] Display table level column stats in DESCRIBE EXTENDED/FORMATTED TABLE - Hive - [issue]
...There is currently no way to display the column level stats from hive CLI. It will be good to show them in DESCRIBE EXTENDED/FORMATTED TABLE...
http://issues.apache.org/jira/browse/HIVE-7050    Author: Prasanth J, 2014-06-13, 10:37
[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, 2014-06-12, 03:56
[HIVE-6883] Dynamic partitioning optimization does not honor sort order or order by - Hive - [issue]
...HIVE-6455 patch does not honor sort order of the output table or order by of select statement. The reason for the former is numDistributionKey in ReduceSinkDesc is set wrongly. It doesn't ta...
http://issues.apache.org/jira/browse/HIVE-6883    Author: Prasanth J, 2014-06-09, 07:39
[HIVE-7067] Min() and Max() on Timestamp and Date columns for ORC returns wrong results - Hive - [issue]
...min() and max() of timestamp and date columns of ORC table returns wrong results. The reason for that is when ORC creates object inspectors for date and timestamp it uses JAVA primitive obje...
http://issues.apache.org/jira/browse/HIVE-7067    Author: Prasanth J, 2014-06-09, 07:39
[HIVE-7170] Fix display_colstats_tbllvl.q in trunk - Hive - [issue]
...display_colstats_tbllvl.q test case fails will NPE. Following is the exceptionjava.lang.NullPointerException        at org.apache.hadoop.hive.metastore.StatObjectCon...
http://issues.apache.org/jira/browse/HIVE-7170    Author: Prasanth J, 2014-06-04, 06:35
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