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https://issues.apache.org/jira/browse/HIVE-5756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-5756 started by Eric Hanson.
> Implement vectorization support for IF conditional expression
> -------------------------------------------------------------
>
> Key: HIVE-5756
> URL: https://issues.apache.org/jira/browse/HIVE-5756
> Project: Hive
> Issue Type: Sub-task
> Reporter: Eric Hanson
> Assignee: Eric Hanson
>
> Implement full, end-to-end support for IF 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 but optional.
> This is high priority because IF is the most popular conditional expression.
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