Jitendra Nath Pandey created HIVE-4655:
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Summary: Vectorization not working with negative constants, hive
doesn't fold constants.
Key: HIVE-4655
URL: https://issues.apache.org/jira/browse/HIVE-4655
Project: Hive
Issue Type: Sub-task
Reporter: Jitendra Nath Pandey
Assignee: Jitendra Nath Pandey
Hive optimizer doesn't fold the constants, however vectorized code path
assumes that constants have been folded. This should be fixed in hive
optimizer.
In this jira we just fix vectorization path to handle folding for negative
constants. This is needed because hive plan treats negative constants as
unary-minus expression on constants, therefore these expressions also need
constant folding.
This fix will become redundant once constant folding is appropriately
implemented in hive optimizer. (HIVE-746)
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