Details
-
Improvement
-
Status: Closed
-
Major
-
Resolution: Fixed
-
None
-
None
Description
Right now, when writing data into a table with Tez engine and the clause UNION ALL is the last step of the query, Hive on Tez will create a subdirectory for each branch of the UNION ALL.
With this patch the subdirectories are removed, and the files are renamed and moved to the parent directory.