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From "Chris Westin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2676) Review Drill casting combinations re SQL standard (ISO 9705:2011 part 2 § 6.13)
Date Tue, 26 May 2015 20:53:26 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Westin updated DRILL-2676:
--------------------------------
    Assignee: Daniel Barclay (Drill)

> Review Drill casting combinations re SQL standard (ISO 9705:2011 part 2 § 6.13)
> -------------------------------------------------------------------------------
>
>                 Key: DRILL-2676
>                 URL: https://issues.apache.org/jira/browse/DRILL-2676
>             Project: Apache Drill
>          Issue Type: Task
>          Components: Execution - Data Types
>            Reporter: Daniel Barclay (Drill)
>            Assignee: Daniel Barclay (Drill)
>             Fix For: 1.1.0
>
>
> Drill doesn't allow casting an expression of an ARRAY type to that same ARRAY type. 

> That doesn't seem to be compatible with the cast-combinations table in the SQL spec.
(although I haven't checked the rest of the rules yet.
> It also seems illogical, since one can't cast something to the type that it already has.
> We should probably review Drill casting combinations against the casting rules in the
SQL specification (ISO 9705:2011 part 2 § 6.13).



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