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Posted to issues@calcite.apache.org by "Xiaoyong Deng (JIRA)" <ji...@apache.org> on 2017/01/17 12:06:26 UTC

[jira] [Created] (CALCITE-1581) UDTF like in hive

Xiaoyong Deng created CALCITE-1581:
--------------------------------------

             Summary: UDTF like in hive
                 Key: CALCITE-1581
                 URL: https://issues.apache.org/jira/browse/CALCITE-1581
             Project: Calcite
          Issue Type: New Feature
            Reporter: Xiaoyong Deng
            Assignee: Julian Hyde


Support one row in and multi-column/multi-row out(one-to-many mapping), just like udtf in hive.

The query would like this:

{code}
select
  func(c0, c1) as (f0, f1, f2)
from table_name;
{code}

c0 and c1 are 'table_name' columns. f0, f1 and f2 are new generated columns.



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