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Posted to dev@carbondata.apache.org by 马云 <si...@163.com> on 2017/04/13 04:38:25 UTC
[DISCUSSION] Support new feature: bitmap encode
Hi all,
Let's start the discussion about bitmap encode.
below is the high level design document
https://raw.githubusercontent.com/mayunSaicmotor/saic-carbondata/branch-0.2-saic/examples/src/main/resources/carbondata-bitmap-encode.xlsx
Please feel free to discuss and give your suggestion.
Thanks
Jarck
Re: [DISCUSSION] Support new feature: bitmap encode
Posted by David QiangCai <da...@gmail.com>.
Hi,
In my opinion, we need the following points as least.
1. create table ddl can specify a bitmap option
2. add a new Encoding: BITMAP
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Best Regards
David QiangCai
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Re: [DISCUSSION] Support new feature: bitmap encode
Posted by simafengyun <si...@163.com>.
sub-task list of bitmap encode Feature:
1 data loading for bitmap encode columns
generate bitmap encoded data and store to data page
2 query bitmap encode data
read bitmap encode data from data page to dataChunk2
3 apply filter query on bitmap encode column
equal / not equal filter
range filter
and / or query
include / exclude filter
Any suggestion?
Thanks
Jack Ma
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Re: [DISCUSSION] Support new feature: bitmap encode
Posted by simafengyun <si...@163.com>.
upload the design doc screenshots
<http://apache-carbondata-mailing-list-archive.1130556.n5.nabble.com/file/n10912/bitmap1.jpeg>
<http://apache-carbondata-mailing-list-archive.1130556.n5.nabble.com/file/n10912/bitmap2.jpeg>
<http://apache-carbondata-mailing-list-archive.1130556.n5.nabble.com/file/n10912/bitmap3.jpeg>
<http://apache-carbondata-mailing-list-archive.1130556.n5.nabble.com/file/n10912/bitmap4.jpeg>
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