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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/04/15 19:09:25 UTC
[GitHub] [spark] hvanhovell removed a comment on issue #28223:
[SPARK-31450][SQL] Make ExpressionEncoder thread-safe
hvanhovell removed a comment on issue #28223: [SPARK-31450][SQL] Make ExpressionEncoder thread-safe
URL: https://github.com/apache/spark/pull/28223#issuecomment-614224732
@dongjoon-hyun it should be a bit of a lateral move performance wise. The expensive bit is generating the code and compiling it, and we are definitely not avoiding that. It might be a bit quicker because it does not excessively copy the expression encoder (which is not for free because of the work which is done in the constructor). What would you like to see benchmarked?
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