holdenk created SPARK-15589:
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Summary: Anaylze simple PySpark closures and generate SQL
expressions
Key: SPARK-15589
URL: https://issues.apache.org/jira/browse/SPARK-15589
Project: Spark
Issue Type: Improvement
Components: PySpark, SQL
Reporter: holdenk
Similar to SPARK-14083 we can try introspecting simple Python functions and see
if we can generate an equivalent SQL expression. This would result in an even
greater performance increase for PySpark users than Scala users as not only
would they benefit from better codegen, it would also avoid substantial
serialization cost.
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