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Posted to issues@orc.apache.org by "melin (Jira)" <ji...@apache.org> on 2021/12/21 01:15:00 UTC

[jira] [Commented] (ORC-1058) Add metadata num_nulls

    [ https://issues.apache.org/jira/browse/ORC-1058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17462910#comment-17462910 ] 

melin commented on ORC-1058:
----------------------------

[~dongjoon] 

> Add metadata num_nulls
> ----------------------
>
>                 Key: ORC-1058
>                 URL: https://issues.apache.org/jira/browse/ORC-1058
>             Project: ORC
>          Issue Type: Improvement
>            Reporter: melin
>            Priority: Major
>
> parquet store the amount of null data for each column, which can be read directly during data quality analysis, avoiding calculation of statistics



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