GitHub user QiangCai opened a pull request:
https://github.com/apache/incubator-carbondata/pull/635
[WIP]support SORT_COLUMNS
1. create table with sort_columns
e.g. tblproperties('sort_columns' = 'col7,col3')
The columns of sort_columsn will be at the begin of all columns.
sort_columns support all primitive datatype.
2. loading
sort by sort_columns
sort columns: sorted and rowid index
other dimension: no sorted and no rowid index
3. compaction
sort by sort_columns
4. filter on sort_columns
filter no dictionary support all primitive data type
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/QiangCai/incubator-carbondata sortkey
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-carbondata/pull/635.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #635
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commit ad4a3d59c3c0f5cae45f1bd0333718c7c8ada62e
Author: QiangCai <[email protected]>
Date: 2017-03-02T09:48:54Z
sort columns
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