manuzhang commented on issue #5706: URL: https://github.com/apache/iceberg/issues/5706#issuecomment-1241509671
@rdblue Thanks for pointing out that it's manifest columns being projected. Also, with `rowFilter` being `true` `dropStats` is `false` regardless of the columns. Disabling parallel planning only has made it slower but not solved the memory issue. After more debugging, I find [all stats are read from manifest file](https://github.com/apache/iceberg/blob/apache-iceberg-0.13.1/core/src/main/java/org/apache/iceberg/ManifestReader.java#L202) and [copied to data file](https://github.com/apache/iceberg/blob/apache-iceberg-0.13.1/core/src/main/java/org/apache/iceberg/ManifestGroup.java#L181) with `dropStats` being false. -- 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]
