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From "Jihoon Son (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TAJO-1900) When a record column and its child column are retrieved together, the record column might not be inferred as record type properly
Date Thu, 08 Oct 2015 08:50:26 GMT

     [ https://issues.apache.org/jira/browse/TAJO-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jihoon Son updated TAJO-1900:
-----------------------------
    Attachment: TAJO-1900.patch

> When a record column and its child column are retrieved together, the record column might
not be inferred as record type properly
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: TAJO-1900
>                 URL: https://issues.apache.org/jira/browse/TAJO-1900
>             Project: Tajo
>          Issue Type: Bug
>          Components: Planner/Optimizer
>            Reporter: Jihoon Son
>            Assignee: Jihoon Son
>         Attachments: TAJO-1900.patch
>
>
> For example, given a following query, the column 'glossary' can be inferred as the TEXT
type rather than the RECORD type.
> {noformat}
> default> select glossary from self_desc_table2 where char_length(glossary."GlossDiv".title)
> 0 
> {noformat}
> This is because columns of the query are inferred in an arbitrary order, and there isn't
any routine to resolve the conflict of inferred data type.



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