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Posted to issues-all@impala.apache.org by "Quanlong Huang (Jira)" <ji...@apache.org> on 2021/09/15 03:18:00 UTC
[jira] [Updated] (IMPALA-6505) Min-Max predicate push down in ORC
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[ https://issues.apache.org/jira/browse/IMPALA-6505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Quanlong Huang updated IMPALA-6505:
-----------------------------------
Priority: Critical (was: Major)
> Min-Max predicate push down in ORC scanner
> ------------------------------------------
>
> Key: IMPALA-6505
> URL: https://issues.apache.org/jira/browse/IMPALA-6505
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend
> Reporter: Quanlong Huang
> Assignee: Norbert Luksa
> Priority: Critical
>
> For parquet tables, we push down predicates that can be used with file level statistics to filter out row groups. It's controlled by the PARQUET_READ_STATISTICS query option.
> We can do the same for ORC tables after ORC-751 (support predicate pushdown in C++ reader) is resolved.
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