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[PARQUET-1435] Benchmark filtering column-indexes - Parquet - [issue]
...Benchmark the improvements or drawbacks of filtering with and without using column-indexes. We shall also benchmark the overhead of reading and using the column-indexes in case of it is not ...
http://issues.apache.org/jira/browse/PARQUET-1435    Author: Gabor Szadovszky , 2018-10-11, 08:32
[PARQUET-1365] Don't write page level statistics for v1 - Parquet - [issue]
...Page level statistics are never used in production and after adding column indexes they are completely useless. In page_v2 we are not able to remove the unnecessary statistics as they are re...
http://issues.apache.org/jira/browse/PARQUET-1365    Author: Gabor Szadovszky , 2018-10-11, 08:32
[PARQUET-1414] Limit page size based on maximum row count - Parquet - [issue]
...For column index based filtering it is important to have enough pages for a column. In case of a perfectly matching encoding for the suitable data it can happen that all of the values can be...
http://issues.apache.org/jira/browse/PARQUET-1414    Author: Gabor Szadovszky , 2018-10-11, 08:31
[PARQUET-1415] Improve logic when to write column indexes - Parquet - [issue]
...Currently, we always write column indexes. In case of the data is ordered (ASCENDING or DESCENDING) the filtering would highly benefit from column indexes. While, if the data is UNORDERED it...
http://issues.apache.org/jira/browse/PARQUET-1415    Author: Gabor Szadovszky , 2018-10-03, 09:50
[PARQUET-1201] Column indexes - Parquet - [issue]
...Write the column indexes described in PARQUET-922. This is the first phase of implementing the whole feature. The implementation is done in the following steps: Utility to read/write in...
http://issues.apache.org/jira/browse/PARQUET-1201    Author: Gabor Szadovszky , 2018-10-03, 09:49
[PARQUET-1399] Move parquet-mr related code from parquet-format - Parquet - [issue]
...There are java classes in the parquet-format repo that shall be in the parquet-mr repo instead: java classes and test classesThe idea is to create a separate module in parquet-mr and depend ...
http://issues.apache.org/jira/browse/PARQUET-1399    Author: Gabor Szadovszky , 2018-10-02, 15:53
[PARQUET-1337] Current block alignment logic may lead to several row groups per block - Parquet - [issue]
...When the size of buffered data gets near the desired row group size, Parquet flushes the data to a row group. However, at this point the data for the last page is not yet encoded nor compres...
http://issues.apache.org/jira/browse/PARQUET-1337    Author: Gabor Szadovszky , 2018-09-28, 16:03
[VOTE] Release Apache Parquet format 2.6.0 RC0 - Parquet - [mail # dev]
...+1 (non-binding)- Checked source tarball content- Checked checksums, signatureCheers,GaborOn Thu, Sep 27, 2018 at 5:10 PM Zoltan Ivanfi wrote:> +1 (binding)>> - contents look good&g...
   Author: Gabor Szadovszky , 2018-09-28, 06:52
[PARQUET-1400] Deprecate parquet-mr related code in parquet-format - Parquet - [issue]
...There are java classes in the parquet-format repo that shall be in the parquet-mr repo instead: java classes and test classesThese classes shall be deprecated by mentioning they will be move...
http://issues.apache.org/jira/browse/PARQUET-1400    Author: Gabor Szadovszky , 2018-09-24, 12:20
[PARQUET-1389] Improve value skipping at page synchronization - Parquet - [issue]
...Currently, value skipping is done one-by-one for page synchronization. There are encodings (e.g. plain) where several values can be skipped at once....
http://issues.apache.org/jira/browse/PARQUET-1389    Author: Gabor Szadovszky , 2018-09-11, 11:59