[jira] [Resolved] (CARBONDATA-2325) Page level uncompress and Query performance improvement for Unsafe No Dictionary

["Jacky Li (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CARBONDATA-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacky Li resolved CARBONDATA-2325.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.4.0

> Page level uncompress and Query performance improvement for Unsafe No Dictionary
> --------------------------------------------------------------------------------
>
>                 Key: CARBONDATA-2325
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2325
>             Project: CarbonData
>          Issue Type: Improvement
>            Reporter: kumar vishal
>            Priority: Major
>             Fix For: 1.4.0
>
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> *Page Level Decoder for query*
> Add page level on demand decoding, in current code, all pages of blocklet is getting uncompressed, because of this memory footprint is too high and causing OOM, Now added code to support page level decoding, one page will be decoding when all the records are processed next page data will be decoded. It will improve query performance for example limit query.
> *Unsafe No Dictionary(Unsafe variable length)*
> Optimized getRow(for Vector processing) And putArray method



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