yihua opened a new issue, #899: URL: https://github.com/apache/hudi-rs/issues/899
### Feature Description A read filter with `IN` or `NOT IN` is evaluated as one equality pass over the column per listed value, combined with `OR` or `AND` into the row mask. The cost grows with the number of values, so looking up 100 record keys costs 100 passes over every batch, and a key list of a few thousand values takes longer to filter than to read. Proposed: for string columns, build a hash set of the values once and probe it per row, leaving the comparison chain for other column types. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
