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From "John Sichi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-1459) wildcards in UDF/UDAF should expand to all columns (rather than no columns)
Date Mon, 12 Jul 2010 01:52:50 GMT
wildcards in UDF/UDAF should expand to all columns (rather than no columns)
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                 Key: HIVE-1459
                 URL: https://issues.apache.org/jira/browse/HIVE-1459
             Project: Hadoop Hive
          Issue Type: Bug
          Components: UDF
    Affects Versions: 0.6.0
            Reporter: John Sichi
            Assignee: Arvind Prabhakar
             Fix For: 0.7.0


When a function is invoked with a wildcard * for its parameter, it should be passed all of
the columns in the expansion, exception in the special case of COUNT, where none of the columns
should be passed.

As part of this issue, we also need to test qualified wildcards (e.g. t.*) and Hive's extension
for regular-expression selection of column subsets.


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