[
https://issues.apache.org/jira/browse/DRILL-6361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16464478#comment-16464478
]
ASF GitHub Bot commented on DRILL-6361:
---------------------------------------
paul-rogers commented on issue #1242: DRILL-6361: Added typeOf() function
variations
URL: https://github.com/apache/drill/pull/1242#issuecomment-386753999
Addressed code review comments.
Added support for the new `VARBINARY` type. The `sqlTypeOf()` function now
returns precision and scale. Example: `DECIMAL(6, 3)`.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> 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
> Fix For: 1.14.0
>
>
> 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.)
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
