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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2020/03/16 22:53:04 UTC

[jira] [Updated] (SPARK-29749) Add parquet scan Statistics

     [ https://issues.apache.org/jira/browse/SPARK-29749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun updated SPARK-29749:
----------------------------------
    Affects Version/s:     (was: 3.0.0)
                       3.1.0

> Add parquet scan Statistics
> ---------------------------
>
>                 Key: SPARK-29749
>                 URL: https://issues.apache.org/jira/browse/SPARK-29749
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: ulysses you
>            Priority: Minor
>
> With datasource v2, spark add a `SupportsReportStatistics` interface and now it only implement in `FileScan` which looks like fallback plan. 
> Parquet api provide a possible that get file statistics without scan total file, so we can use the more accurate statistics instead estimate.



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