fengsen-neu commented on issue #3909: URL: https://github.com/apache/iceberg/issues/3909#issuecomment-1020782807
> A large amount of memory is used because each datafile will read all the data of the deletefile which seqNum is bigger than datafile in a hashSet for filtering, But only those keys that are also in the datafile are necessary to read , In the optimized version of my company , I use a bloom filter of datafile's keys to filter out unnecessary eq-deletefile keys (hashset of datafile's keys also works, but using hashset usually consumes more memory) , if the datafile support storage Bloom filter Such as using parquet format based on #2642 ，It's easier to read bloom filters directly from a datafile. maybe I can pull a request if need. It's easier to read bloom filters directly from a datafile. maybe I can pull a request if need. --- Could you please provide the PR for my reference? -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
