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Posted to dev@drill.apache.org by "ye tian (Jira)" <ji...@apache.org> on 2021/03/25 08:20:00 UTC

[jira] [Created] (DRILL-7886) Add new ValueHolder to Apache Drill

ye tian created DRILL-7886:
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             Summary: Add new ValueHolder to Apache Drill
                 Key: DRILL-7886
                 URL: https://issues.apache.org/jira/browse/DRILL-7886
             Project: Apache Drill
          Issue Type: Improvement
          Components: Functions - Drill
    Affects Versions: 1.18.0
            Reporter: ye tian
             Fix For: 1.18.0


Hi I'm developing Apache Drill UDFs. I need a self-defined class in the workspace of my aggregate function. But UDAF's workspace does not support variables other than ValueHolders. So my question is: is it able to write a ValueHolders for self-defined classes? Any instructions are also welcome.



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