[jira] [Commented] (DRILL-6361) Provide sqlTypeOf() and modeOf() functions

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-6361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16459458#comment-16459458 ] 

ASF GitHub Bot commented on DRILL-6361:
---------------------------------------

Github user kfaraaz commented on the issue:

    https://github.com/apache/drill/pull/1242
  
    Can you please add a unit test that covers these types, BINARY, BOOLEAN, DECIMAL, DATE, TIME and TIMESTAMP ?


> Provide sqlTypeOf() and modeOf() functions
> ------------------------------------------
>
>                 Key: DRILL-6361
>                 URL: https://issues.apache.org/jira/browse/DRILL-6361
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.13.0
>            Reporter: Paul Rogers
>            Assignee: Paul Rogers
>            Priority: Minor
>              Labels: doc-impacting
>
> Drill provides a {{typeof()}} function to return the type of a column. The returned string, however, has only the base data type. A Drill data type (a "major type") also includes a cardinality (a "mode"). For example, {{Optional Int}} or {{Required VarChar}}.
> This type information is useful for handling data conversions. For example, if I could tell that a column value was a {{Nullable Int}}, I could guess that it is one Drill invented, and I could merge it, by hand, with the type from another file that had actual values.
> The two options are equivalent. Either provide a {{modeOf()}} to just return cardinality, or a {{dataTypeOf()}} that returns both. (Maybe the {{modeOf()}} might be more useful.)



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