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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-1941) select from subquery having an order by fails
Date Thu, 19 Mar 2015 22:26:38 GMT

    [ https://issues.apache.org/jira/browse/DRILL-1941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14370247#comment-14370247

Sean Hsuan-Yi Chu commented on DRILL-1941:

If the column in the order by shows up in the inner select, this query works

"select q.name as name, q.comment as comment \n" +
  "from \n" +
  "(select employee.first_name as name, nation.n_comment as comment, employee.full_name AS
full_name \n" +
  "from cp.`tpch/nation.parquet` nation INNER JOIN cp.`employee.json` employee \n" +
  "on (nation.n_nationkey = employee.employee_id) \n" +
  "order by employee.full_name) q";

> select from subquery having an order by fails
> ---------------------------------------------
>                 Key: DRILL-1941
>                 URL: https://issues.apache.org/jira/browse/DRILL-1941
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 0.8.0
>            Reporter: Krystal
>            Assignee: Sean Hsuan-Yi Chu
>             Fix For: 0.9.0
>         Attachments: drill_err.log
> git.commit.id.abbrev=b491cdb
> The following query fails:
> 0: jdbc:drill:schema=dfs>  select q.name as name, q.registration as registration from
(select cast(student.name as varchar(30)) as name, cast(voter.registration as varchar(20))
as registration from `dfs`.`default`.`voter` voter full outer join `dfs`.`default`.`./student`
student on (student.name = voter.name) where student.age < 30 order by student.name) q;
> Query failed: Query failed: Unexpected exception during fragment initialization: -1
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> Running the same query with "explain plan for" also fail with the same error.  If I remove
the "order by student.name" from the sub-query, the query run successfully.

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