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https://issues.apache.org/jira/browse/IMPALA-10325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Qifan Chen reassigned IMPALA-10325:
-----------------------------------
Assignee: Qifan Chen
> Parquet scan should use min/max statistics to skip pages based on equi-join
> predicate
> -------------------------------------------------------------------------------------
>
> Key: IMPALA-10325
> URL: https://issues.apache.org/jira/browse/IMPALA-10325
> Project: IMPALA
> Issue Type: Bug
> Reporter: Qifan Chen
> Assignee: Qifan Chen
> Priority: Major
>
> Parquet stores min/max stats for pages which can be used to skip certain
> pages if they don't qualify an equi-join predicate.
> The query below ends up scanning all rows for table a, which may not be
> needed if the min/max of b.ss_addr_sk can be detected and used during the
> scan of a.
> {code:java}
> select a.ss_sold_time_sk from
> store_sales a join [SHUFFLE] store_sales b
> where a.ss_addr_sk = b.ss_addr_sk and
> b.ss_customer_sk < 10
> ;
> {code}
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