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[HIVE-4579] Create a SARG interface for RecordReaders - Hive - [issue]
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...I think we should create a SARG (http://en.wikipedia.org/wiki/Sargable) interface for RecordReaders. For a first pass, I'll create an API that uses the value stored in hive.io.filter.expr.se...
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http://issues.apache.org/jira/browse/HIVE-4579
Author: Owen O'Malley,
2013-05-23, 19:33
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Re: assign bugs to myself in ASF Jira - Hive - [mail # dev]
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...On Tue, May 21, 2013 at 10:20 AM, Eugene Koifman wrote: done...
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Author: Owen O'Malley,
2013-05-22, 03:16
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Re: Filtering - Hive - [mail # user]
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...On Sun, May 19, 2013 at 3:11 PM, Peter Marron wrote: You're welcome. **** ** ** well, you don't need double quotes, but yes. Right. You want the seriali...
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Author: Owen O'Malley,
2013-05-20, 04:36
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[HIVE-4227] Add column level encryption to ORC files - Hive - [issue]
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...It would be useful to support column level encryption in ORC files. Since each column and its associated index is stored separately, encrypting a column separately isn't difficult. In terms ...
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http://issues.apache.org/jira/browse/HIVE-4227
Author: Owen O'Malley,
2013-05-17, 17:41
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[HIVE-3889] Add floating point compression to ORC file - Hive - [issue]
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...Karol Wegrzycki, a CS student at University of Warsaw, has implemented an FPC compressor for doubles. It would be great to hook this up to the ORC file format so that we can get better compr...
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http://issues.apache.org/jira/browse/HIVE-3889
Author: Owen O'Malley,
2013-05-17, 17:41
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[HIVE-4246] Implement predicate pushdown for ORC - Hive - [issue]
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...By using the push down predicates from the table scan operator, ORC can skip over 10,000 rows at a time that won't satisfy the predicate. This will help a lot, especially if the file is sort...
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http://issues.apache.org/jira/browse/HIVE-4246
Author: Owen O'Malley,
2013-05-17, 17:41
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[HIVE-4245] Implement numeric dictionaries in ORC - Hive - [issue]
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...For many applications, especially in de-normalized data, there is a lot of redundancy in the numeric columns. Therefore, it would make sense to adaptively use dictionary encodings for numeri...
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http://issues.apache.org/jira/browse/HIVE-4245
Author: Owen O'Malley,
2013-05-17, 17:41
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[HIVE-4242] Predicate push down should also be provided to InputFormats - Hive - [issue]
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...Currently, the push down predicate is only provided to native tables if the hive.optimize.index.filter configuration variable is set. There is no reason to prevent InputFormats from getting ...
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http://issues.apache.org/jira/browse/HIVE-4242
Author: Owen O'Malley,
2013-05-17, 17:41
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[HIVE-4123] The RLE encoding for ORC can be improved - Hive - [issue]
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...The run length encoding of integers can be improved: tighter bit packing allow delta encoding allow longer runs...
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http://issues.apache.org/jira/browse/HIVE-4123
Author: Owen O'Malley,
2013-05-17, 17:41
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[HIVE-4244] Make string dictionaries adaptive in ORC - Hive - [issue]
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...The ORC writer should adaptively switch between dictionary and direct encoding. I'd propose looking at the first 100,000 values in each column and decide whether there is sufficient loading ...
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http://issues.apache.org/jira/browse/HIVE-4244
Author: Owen O'Malley,
2013-05-17, 17:41
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