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https://issues.apache.org/jira/browse/DRILL-6360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17005125#comment-17005125
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Paul Rogers commented on DRILL-6360:
------------------------------------
The information should go
[here|https://drill.apache.org/docs/data-type-functions/].
{{typeof()}} returns {{"NULL"}} if the value of a column is NULL, else it
returns the internal Drill type name for a column as given by {{drillTypeOf()}}.
> Document the typeof() function
> ------------------------------
>
> Key: DRILL-6360
> URL: https://issues.apache.org/jira/browse/DRILL-6360
> Project: Apache Drill
> Issue Type: Task
> Components: Documentation
> Affects Versions: 1.13.0
> Reporter: Paul Rogers
> Assignee: Bridget Bevens
> Priority: Minor
> Labels: doc-impacting
>
> Drill has a {{typeof()}} function that returns the data type (but not mode)
> of a column. It was discussed on the dev list recently. However, a search of
> the Drill web site, and a scan by hand, failed to turn up documentation about
> the function.
> As a general suggestion, would be great to have an alphabetical list of all
> functions so we don't have to hunt all over the site to find which functions
> are available.
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