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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