Davies Liu created SPARK-12054:
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Summary: Consider nullable in codegen
Key: SPARK-12054
URL: https://issues.apache.org/jira/browse/SPARK-12054
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Davies Liu
Assignee: Davies Liu
Currently, we always check the nullability for results of expressions, we could
skip that if the expression is not nullable.
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