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Posted to issues@orc.apache.org by "Penglei Shi (Jira)" <ji...@apache.org> on 2023/02/22 09:27:00 UTC

[jira] [Commented] (ORC-422) Predicate push down can return incorrect value when lower/upper bounds are set

    [ https://issues.apache.org/jira/browse/ORC-422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17692051#comment-17692051 ] 

Penglei Shi commented on ORC-422:
---------------------------------

[~smore]  It looks that orc reader prior to 1.6 will possibly get incorrect results when reading data written by orc writer after 1.6 with predicate pushdown?

> Predicate push down can return incorrect value when lower/upper bounds are set
> ------------------------------------------------------------------------------
>
>                 Key: ORC-422
>                 URL: https://issues.apache.org/jira/browse/ORC-422
>             Project: ORC
>          Issue Type: Bug
>    Affects Versions: 1.6.0
>            Reporter: Sandeep More
>            Assignee: Sandeep More
>            Priority: Major
>             Fix For: 1.6.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> As part of [ORC-203|https://issues.apache.org/jira/browse/ORC-203] change, Min and/or Max returned by StringStatistics will be null if lower and/or upper bounds are set.
> This can cause predicate push down to return incorrect value.



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