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From "Kristine Hahn (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (DRILL-2646) CONVERT_TO/CONVERT_FROM syntax (arguments) not specified
Date Wed, 01 Apr 2015 21:00:54 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Kristine Hahn reassigned DRILL-2646:

    Assignee: Kristine Hahn  (was: Bridget Bevens)

> CONVERT_TO/CONVERT_FROM syntax (arguments) not specified
> --------------------------------------------------------
>                 Key: DRILL-2646
>                 URL: https://issues.apache.org/jira/browse/DRILL-2646
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Documentation
>            Reporter: Daniel Barclay (Drill)
>            Assignee: Kristine Hahn
> On the SQL Functions page at http://drill.apache.org/docs/sql-functions/, the 
> section on the CONVERT_TO and CONVERT_FROM functions never specifies the syntax (doesn't
specify how many parameters each takes, which parameter is which) or semantics (including
what the parameters are).
> Additionally, the name "Type" for the first column is confusing, since the values in
that column do not seem to be Drill SQL types.  Would something roughly like "type specifier"
or "conversion specifier" be more accurate?
> Also, the connection between the values in the Type column and the functions isn't clear.
 Besides their being no specification of the parameters (to say where a value from the Type
would go), the example at the end of the section doesn't use any of the values in the Type
column (or, in fact, any value in the whole table). (If the string literal "'JSON'" in that
CONVERT_FROM is an example of the kind of thing listed in the Type column, then why isn't
"JSON" listed in that column (and what else is missing)?

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