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Posted to issues@orc.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2021/08/25 21:32:00 UTC
[jira] [Commented] (ORC-969) Evaluate SearchArguments using file
and stripe level stats
[ https://issues.apache.org/jira/browse/ORC-969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17404733#comment-17404733 ]
Dongjoon Hyun commented on ORC-969:
-----------------------------------
Thank you for filing a JIRA issue.
> Evaluate SearchArguments using file and stripe level stats
> ----------------------------------------------------------
>
> Key: ORC-969
> URL: https://issues.apache.org/jira/browse/ORC-969
> Project: ORC
> Issue Type: Improvement
> Components: C++
> Affects Versions: 1.7.0
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Major
>
> Currently in the C++ reader, SearchArguments are only evaluated on RowGroup level stats and bloom filters in SargsApplier::pickRowGroups():
> https://github.com/apache/orc/blob/2143841e24abb2e0fef1a3396376682fc3bb6fea/c%2B%2B/src/sargs/SargsApplier.cc#L65
> We can improve predicate push down to evaluate them on file and stripe level stats.
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