[jira] [Closed] (DRILL-1889) when 'select *' is used along with an order by on length of a column, Drill is adding the computed length to the list of columns

["Rahul Challapalli (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-1889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rahul Challapalli closed DRILL-1889.
------------------------------------

Verified and added the below testcase

Functional/Passing/json_storage/q1_DRILL-1889.q

> when 'select *' is used along with an order by on length of a column, Drill is adding the computed length to the list of columns
> --------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-1889
>                 URL: https://issues.apache.org/jira/browse/DRILL-1889
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>            Reporter: Rahul Challapalli
>            Assignee: Jinfeng Ni
>            Priority: Critical
>             Fix For: 0.8.0
>
>         Attachments: 0001-DRILL-1889-Fix-star-column-prefix-and-subsume-logic-.patch.3
>
>
> git.commit.id.abbrev=9dfa4a1
> Dataset :
> {code}
> {
>  "col1":1,
>  "col2":"a"
> }
> {
>  "col1":2,
>  "col2":"b"
> }
> {
>  "col1":2,
>  "col2":"abc"
> }
> {code}
> Query :
> {code}
>  select * from `b.json` order by length(col2);
> +------------+------------+------------+
> |    col1    |    col2    |   EXPR$1   |
> +------------+------------+------------+
> | 1          | a          | 1          |
> | 2          | b          | 1          |
> | 2          | abc        | 3          |
> +------------+------------+------------+
> {code}
> Drill adds the length column. (EXPR$1) Not sure if this is intended behavior since postgres does not do this



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