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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