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Posted to issues@orc.apache.org by "Yiqun Zhang (Jira)" <ji...@apache.org> on 2022/03/04 06:37:00 UTC

[jira] [Comment Edited] (ORC-1121) Pushdown filters don't evaluate due to wrong column-conversion-safety judgment

    [ https://issues.apache.org/jira/browse/ORC-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17501179#comment-17501179 ] 

Yiqun Zhang edited comment on ORC-1121 at 3/4/22, 6:36 AM:
-----------------------------------------------------------

[~Penglei Shi]  It doesn't look like it can be assigned to you, but that's okay, you can commit the pr directly on Github, just start the title with ORC-1121


was (Author: guiyankuang):
[~Penglei Shi]  It doesn't look like it can be assigned to you, but that's okay, you can commit the pr directly on Github, just start the title with ORC-1211

> Pushdown filters don't evaluate due to wrong column-conversion-safety judgment
> ------------------------------------------------------------------------------
>
>                 Key: ORC-1121
>                 URL: https://issues.apache.org/jira/browse/ORC-1121
>             Project: ORC
>          Issue Type: Bug
>          Components: Java
>    Affects Versions: 1.6.11
>            Reporter: Penglei Shi
>            Priority: Major
>
> RecordReaderImpl::pickRowGroups() will check if filter-column is safe for ppd evaluation with file column id, but the parameter of SchemaEvolution::isPPDSafeConversion is reader column id, which is different from file column id, and this causes pushed filters can't be evaluated and recordReader can't skip row groups which are not matched.



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