[jira] [Resolved] (DRILL-6417) Project is not pushed into scan if use subquery with UNION operator

["Vitalii Diravka (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-6417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vitalii Diravka resolved DRILL-6417.
------------------------------------
    Resolution: Won't Fix

> Project is not pushed into scan if use subquery with UNION operator
> -------------------------------------------------------------------
>
>                 Key: DRILL-6417
>                 URL: https://issues.apache.org/jira/browse/DRILL-6417
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.14.0
>            Reporter: Anton Gozhiy
>            Assignee: Vitalii Diravka
>            Priority: Major
>         Attachments: Test_data.tar.gz
>
>
> *Data:*
> Use attached dataset
> *Query:*
> {code:sql}
> explain plan for select id
> from 
>   (select id, part_col, int_col, bool_col, date_col, float_col, time_col, ts_col
>    from dfs.tmp.`DRILL_3855_test_data`
>    where part_col = 'Partition_one' or part_col = 'Partition_two'
>    union
>    select id, part_col, int_col, bool_col, date_col, float_col, time_col, ts_col
>    from dfs.tmp.`DRILL_3855_test_data`
>    where part_col = 'Partition_two' or part_col = 'Partition_three')
> where int_col = 0
> {code}
> *Expected plan:*
> {noformat}
> Scan ... columns=[`part_col`, `id`, `int_col`]
> {noformat}
> *Actual plan:*
> {noformat}
> Scan ... columns=[`part_col`, `id`, `int_col`, `bool_col`, `date_col`, `float_col`, `time_col`, `ts_col`]
> {noformat}
> *Notes:*
> Works as expected if change "union" to "union all"



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