[jira] [Created] (DRILL-3516) UDF documentation doesn't get people where they need to be

["Ted Dunning (JIRA)" <ji...@apache.org>]

Ted Dunning created DRILL-3516:
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             Summary: UDF documentation doesn't get people where they need to be
                 Key: DRILL-3516
                 URL: https://issues.apache.org/jira/browse/DRILL-3516
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Ted Dunning


The UDF documentation on the web side rooted at http://drill.apache.org/docs/develop-custom-functions/ does not describe the high level process for how UDF's are used, nor does it describe why simple things like toString can't work on *Holder data structures.

This leads to huge confusion and frustration on the part of potentially contributors.

Here are some pertinent threads:

http://mail-archives.apache.org/mod_mbox/drill-user/201507.mbox/%3CCACAwhF%3DBxs-bXNdrm0pNJ4e8hZiaueqtZMhJ%3DRiBpf%3Dt%3DzEOWA%40mail.gmail.com%3E

http://mail-archives.apache.org/mod_mbox/drill-user/201507.mbox/%3CCACAwhFmwWkP6udc05UEGFTzpEsaRvAxSRKW%2B2Mg-ijYX8QoQxQ%40mail.gmail.com%3E





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