[jira] Updated: (HIVE-1042) function in a transform with more than 1 argument fails

["Paul Yang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-1042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Yang updated HIVE-1042:
----------------------------

    Attachment: HIVE-1042.1.patch

The error 'FAILED: Error in semantic analysis: AS clause has an invalid number of aliases' is meant to catch queries where the use supplies more than one alias for normal UDF's i.e.:

SELECT concat(a) AS (key, value) FROM src; (invalid)

Because the AST structure for the TRANSFORM clause is slightly different (there is no TOK_SELEXPR), this check is improperly triggered when TRANSFORM was used with a  function that had multiple arguments. 

> function in a transform with more than 1 argument fails
> -------------------------------------------------------
>
>                 Key: HIVE-1042
>                 URL: https://issues.apache.org/jira/browse/HIVE-1042
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Paul Yang
>             Fix For: 0.5.0
>
>         Attachments: HIVE-1042.1.patch
>
>
>                 select transform(substr(key, 1, 3))
>                 USING '/bin/cat'
>                 FROM src
> throws an error:
> FAILED: Error in semantic analysis: AS clause has an invalid number of aliases

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