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Posted to dev@hive.apache.org by "Paul Yang (JIRA)" <ji...@apache.org> on 2010/07/13 00:08:50 UTC

[jira] Assigned: (HIVE-1458) Table aliases are case sensitive.

     [ https://issues.apache.org/jira/browse/HIVE-1458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Yang reassigned HIVE-1458:
-------------------------------

    Assignee: Paul Yang

> Table aliases are case sensitive.
> ---------------------------------
>
>                 Key: HIVE-1458
>                 URL: https://issues.apache.org/jira/browse/HIVE-1458
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Jonathan Chang
>            Assignee: Paul Yang
>            Priority: Minor
>
> This query:
>  SELECT exploded, COUNT(1)                                                                                       
>     FROM (                                                                                                          
>     SELECT SPLIT(value, "0") AS value                                                                               
>     FROM tmp_jonchang_hive_test                                                                                     
>     ) B LATERAL VIEW explode(value) C AS exploded                                                                   
>     GROUP BY exploded  
> produces the error:
> FAILED: Error in semantic analysis: line 7:9 Invalid Table Alias or Column Reference exploded
> However, when B is changed to lowercase, the query works as expected: 
>  SELECT exploded, COUNT(1)                                                                                       
>     FROM (                                                                                                          
>     SELECT SPLIT(value, "0") AS value                                                                               
>     FROM tmp_jonchang_hive_test                                                                                     
>     ) b LATERAL VIEW explode(value) C AS exploded                                                                   
>     GROUP BY exploded
> Table aliases shouldn't be case sensitive AFAIK.  And even if they are, I can't see the cause for the error.

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