Eric Hanson created HIVE-5759:
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Summary: Implement vectorized support for COALESCE conditional
expression
Key: HIVE-5759
URL: https://issues.apache.org/jira/browse/HIVE-5759
Project: Hive
Issue Type: Sub-task
Reporter: Eric Hanson
Implement full, end-to-end support for COALESCE in vectorized mode, including
new VectorExpression class(es), VectorizationContext translation to a
VectorExpression, and unit tests for these, as well as end-to-end ad hoc
testing. An end-to-end .q test is recommended.
This is lower priority than IF and CASE but it is still a fairly popular
expression.
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