Open Discussion:Apache CarbonData Roadmap

Posted by Liang Chen on Aug 09, 2016; 4:02am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Open-Discussion-Apache-CarbonData-Roadmap-tp49.html

Hi


I would like to start one discussion thread for Apache CarbonData Roadmap.
Your any input and comments would be very appreciated!

Apache CarbonData 0.1.0-incubating

Support integration with Apache Spark1.5.2,1.6.1,1.6.2
Support integration with Apache Hadoop 2.2 later version
Columnar data store
Fully Index: it can significantly accelerate query performance and reduces the I/O scans and CPU resources, where there are filters in the query. it can also do skip scan in more finer grain unit (called blocklet) in task side scanning instead of scanning the whole file.
Global Multi Dimensional Keys(MDK) based B+Tree Index for all non-measure columns
Min-Max Index for all columns:.
Inverted index for all dimensions
Operable encoded data :Through supporting efficient compression and global encoding schemes, can query on compressed/encoded data, the data can be converted just before returning the results to the users, which is "late materialized".
Column group: Allow multiple columns to form a column group that would be stored as row format. This reduces the row reconstruction cost at query time.
Supports for various use cases with one single Data format : like interactive OLAP-style query, Sequential Access (big scan), Random Access (narrow scan).

       

Apache CarbonData 0.2.0-incubating

Support integration with Apache Spark 2.1
Support Map data type(CARBONDATA-45)
Support create carbondata table select from other datastore’s table
For supporting more flexible data load, remove kettle
Support CarbonDataOutputFormat.
Add create table properties for simplifying data load,especially for high cardinality columns setting

Regards
Liang