hvanhovell opened a new pull request #28223: [SPARK-31450][SQL] Make ExpressionEncoder thread-safe URL: https://github.com/apache/spark/pull/28223 ### What changes were proposed in this pull request? This PR moves the `ExpressionEncoder.toRow` and `ExpressionEncoder.fromRow` functions into their own function objects(`ExpressionEncoder.Serializer` & `ExpressionEncoder.Deserializer`). This effectively makes the `ExpressionEncoder` stateless, thread-safe and (more) reusable. The function objects are not thread safe, however they are documented as such and should be used in a more limited scope (making it easier to reason about thread safety). ### Why are the changes needed? ExpressionEncoders are not thread-safe. We had various (nasty) bugs because of this. ### Does this PR introduce any user-facing change? No. ### How was this patch tested? Existing tests.
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
