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https://issues.apache.org/jira/browse/IMPALA-6505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang updated IMPALA-6505:
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Description:
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.
was:We have a
> 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: Major
>
> 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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