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[HIVE-7509] Fast stripe level merging for ORC - Hive - [issue]
...Similar to HIVE-1950, add support for fast stripe level merging of ORC files through CONCATENATE command and conditional merge task. This fast merging is ideal for merging many small ORC fil...
http://issues.apache.org/jira/browse/HIVE-7509    Author: Prasanth J, 2014-07-25, 22:18
[HIVE-7491] Stats annotation fails to evaluate constant expressions in filter operator - Hive - [issue]
...HIVE-5369 added stats annotation to operator plan. The filter operator evaluates all expression node descriptors and applies rules. It always returns 0 for constant expressions like 'select ...
http://issues.apache.org/jira/browse/HIVE-7491    Author: Prasanth J, 2014-07-24, 23:01
[HIVE-7495] Print dictionary size in orc file dump - Hive - [issue]
...DICTIONARY_V2 fails to print dictionary size in file dump....
http://issues.apache.org/jira/browse/HIVE-7495    Author: Prasanth J, 2014-07-24, 19:34
[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, 2014-07-24, 19:29
[HIVE-7494] ORC returns empty rows for constant folded date queries - Hive - [issue]
...For queries likeselect * from table where d = date '1970-02-01'ORC returns empty rows....
http://issues.apache.org/jira/browse/HIVE-7494    Author: Prasanth J, 2014-07-24, 16:50
[HIVE-6578] Use ORC file footer statistics through StatsProvidingRecordReader interface for analyze command - Hive - [issue]
...ORC provides file level statistics which can be used in analyze partialscan and noscan cases to compute basic statistics like number of rows, number of files, total file size and raw data si...
http://issues.apache.org/jira/browse/HIVE-6578    Author: Prasanth J, 2014-07-21, 06:27
[HIVE-7243] Print padding information in ORC file dump - Hive - [issue]
...It will be useful to print the padding information in orc file dump utility....
http://issues.apache.org/jira/browse/HIVE-7243    Author: Prasanth J, 2014-07-14, 19:12
[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, 2014-07-07, 08:18
[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
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