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Posted to issues@drill.apache.org by "Arina Ielchiieva (JIRA)" <ji...@apache.org> on 2019/08/09 12:30:00 UTC
[jira] [Assigned] (DRILL-6528) Planner setting the wrong number of
records to read (Parquet Reader)
[ https://issues.apache.org/jira/browse/DRILL-6528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arina Ielchiieva reassigned DRILL-6528:
---------------------------------------
Assignee: Arina Ielchiieva
> Planner setting the wrong number of records to read (Parquet Reader)
> --------------------------------------------------------------------
>
> Key: DRILL-6528
> URL: https://issues.apache.org/jira/browse/DRILL-6528
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Reporter: salim achouche
> Assignee: Arina Ielchiieva
> Priority: Major
>
> - Recently fixed the Flat Parquet reader to honor the number of records to read
> - Though few tests failed:
> TestUnionDistinct.testUnionDistinctEmptySides:356 Different number of records returned expected:<5> but was:<1>
> TestUnionAll.testUnionAllEmptySides:355 Different number of records returned expected:<5> but was:<1>
> - I debugged one of them and realized the Planner was setting the wrong number of rows to read (in this case, one)
> - You can put a break point and see this happening:
> Class: ParquetGroupScan
> Method: updateRowGroupInfo(long maxRecords)
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