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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-2874) Concat operator is not supported with complex types, we should throw an error early
Date Thu, 02 Jul 2015 21:09:04 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Hsuan-Yi Chu resolved DRILL-2874.
--------------------------------------
    Resolution: Won't Fix

It is not possible to make that judgement at planning time. Drill would not know the data
type until execution. 

> Concat operator is not supported with complex types, we should throw an error early
> -----------------------------------------------------------------------------------
>
>                 Key: DRILL-2874
>                 URL: https://issues.apache.org/jira/browse/DRILL-2874
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 0.9.0
>            Reporter: Victoria Markman
>            Assignee: Sean Hsuan-Yi Chu
>            Priority: Minor
>             Fix For: 1.2.0
>
>
> m1 is a map in this example:
> {code}
> 0: jdbc:drill:schema=dfs> select 'abc' || m1 from `t2.json`;
> Query failed: SYSTEM ERROR: Failure while trying to materialize incoming schema.  Errors:
>  
> Error in expression at index -1.  Error: Missing function implementation: [concatOperator(MAP-REQUIRED,
MAP-REQUIRED)].  Full expression: --UNKNOWN EXPRESSION--..
> Fragment 0:0
> [dafd9622-17e5-45e1-adef-15fcade2ae03 on atsqa4-133.qa.lab:31010]
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> {code}



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