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From "Yingyi Bu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ASTERIXDB-1560) Misleading SQL++ error message when variables are undefined
Date Wed, 03 Aug 2016 19:59:20 GMT

    [ https://issues.apache.org/jira/browse/ASTERIXDB-1560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406529#comment-15406529
] 

Yingyi Bu commented on ASTERIXDB-1560:
--------------------------------------

>>That actually raises an orthogonal issue - perhaps we should (someday) add ANY as
a supported typename and then you wouldn't need two separate mechanisms. 

+1 :-)

> Misleading SQL++ error message when variables are  undefined
> ------------------------------------------------------------
>
>                 Key: ASTERIXDB-1560
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1560
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: AsterixDB, Error Reporting
>            Reporter: Michael J. Carey
>            Assignee: Yingyi Bu
>            Priority: Minor
>
> This query:
>     SELECT u.name AS uname, m.message AS message
>     FROM GleambookUsers u
>     UNNEST GleambookMessages m
>     WHERE m.authorId = user.id;
> Yields this error message:
>     Cannot resolve ambiguous alias (variable) reference for identifier user [AlgebricksException]
> The reference is undefined, not ambiguous, in this case.



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