[DISCUSSION] support user specified segment reading for query

Posted by rahul_kumar on Oct 03, 2017; 2:42pm
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/DISCUSSION-support-user-specified-segment-reading-for-query-tp23499.html

Hi All,

Please find the design doc for segment reading as attachment.

Proposed Solution :

1. A new property will introduce to set the segment no.
2. User will set property(carbon.input.segments. <database_name> .<table_name>) to specify segment no.
3. During CarbonScan data will be read from from specified segments only.
4. If property is not set, all segments will be caonsidered as default behavior.