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Posted to issues@carbondata.apache.org by "Ravindra Pesala (JIRA)" <ji...@apache.org> on 2018/10/16 07:09:00 UTC

[jira] [Updated] (CARBONDATA-3010) Performance improvements for Fileformat and Presto

     [ https://issues.apache.org/jira/browse/CARBONDATA-3010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ravindra Pesala updated CARBONDATA-3010:
----------------------------------------
    Issue Type: Improvement  (was: Bug)

> Performance improvements for Fileformat and Presto
> --------------------------------------------------
>
>                 Key: CARBONDATA-3010
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-3010
>             Project: CarbonData
>          Issue Type: Improvement
>            Reporter: Ravindra Pesala
>            Priority: Major
>
> When querying data using Spark or Presto while filling the vector, carbondata is not well optimized. The major issues are as follows.
>  # CarbonData has long method stack for reading and filling out the data to vector.
>  # Many conditions and checks before filling out the data to vector.
>  # Maintaining intermediate copies of data leads to more CPU utilization.
>  # Filtering of data twice when using spark's fileformat vector flow and presto flow



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