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[ORC-412] [C++] ORC: Char(n) and Varchar(n) writers truncate to n bytes & corrupts multi-byte data - Orc - [issue]
...https://github.com/apache/orc/blob/master/java/core/src/java/org/apache/orc/impl/writer/CharTreeWriter.java#L41    itemLength = schema.getMaxLength();    padding = new by...
http://issues.apache.org/jira/browse/ORC-412    Author: Gang Wu , 2018-10-15, 21:18
[ORC-415] [C++] Fix writing ColumnStatistics - Orc - [issue]
...Current C++ ORC writer implementation has two issues about column statistics.1. A new batch may override previous batch's has_null info of colIndexStatistics if the new batch has no null but...
http://issues.apache.org/jira/browse/ORC-415    Author: Gang Wu , 2018-10-15, 21:13
[ORC-395] [C++] Support ZSTD compression & decompression - Orc - [issue]
http://issues.apache.org/jira/browse/ORC-395    Author: Gang Wu , 2018-10-12, 03:54
[VOTE] Move our git repository to https://gitbox.apache.org/ - Orc - [mail # dev]
...+1 That's cool!On Thu, Sep 27, 2018 at 7:18 AM Deepak Majeti wrote:> Definitely! +1>> On Thu, Sep 27, 2018 at 8:11 AM Owen O'Malley > wrote:>> > All,> >   &nb...
   Author: Gang Wu , 2018-09-27, 19:30
[expand - 2 more] - [Discussion] Base 128 variable integer encoding is not always good - Orc - [mail # dev]
...Owen,Yes, you are correct. I misunderstood RLEv2 which does not use LEB128.To answer your question:1. RLEv1 + fixed 8 byte in my experiment means that we don't do LEB128encoding for RLE lite...
   Author: Gang Wu , 2018-09-21, 00:16
[ORC-388] Fix isSafeSubtract to use logical operator instead of bit operator - Orc - [issue]
...Both Java and C++ code has misused bit operator in isSafeSubtract function. Although it works coincidently, we should change it to logical operator....
http://issues.apache.org/jira/browse/ORC-388    Author: Gang Wu , 2018-07-30, 04:35
Newbie question on update a row - Orc - [mail # user]
...Hi Freddy,A simple answer is NO.IIUC, ORC is designed to work on HDFS which is append-only. Therefore ORCfile is immutable once the writing is done.Hive provides an advanced feature for upda...
   Author: Gang Wu , 2018-06-14, 16:52
[ORC-263] Implement column writers of compound types - Orc - [issue]
...The scope of this ticket is to implement column writers for list, map, and union types....
http://issues.apache.org/jira/browse/ORC-263    Author: Gang Wu , 2018-05-14, 22:25
[ORC-276] [C++] Create a simple tool to import CSV files - Orc - [issue]
http://issues.apache.org/jira/browse/ORC-276    Author: Gang Wu , 2018-05-14, 22:25
[ORC-224] Implement column writers of primitive types - Orc - [issue]
...As ORC-178 has implemented basic column writers for integers. This JIRA is targeted at implementing ColumnWriters of remaining primitive types including float, double, string, binary, etc....
http://issues.apache.org/jira/browse/ORC-224    Author: Gang Wu , 2018-05-14, 22:25