Tim Armstrong created IMPALA-10453: -------------------------------------- Summary: Support file/partition pruning via runtime filters on Iceberg Key: IMPALA-10453 URL: https://issues.apache.org/jira/browse/IMPALA-10453 Project: IMPALA Issue Type: Improvement Components: Backend Reporter: Tim Armstrong
This is a placeholder to figure out what we'd need to do to support dynamic file-level pruning in Iceberg using runtime filters, i.e. have parity for partition pruning. * If there is a single partition value per file, then applying bloom filters to the row group stats would be effective at pruning files. * If there are partition transforms, e.g. hash-based, then I think we probably need to track the partition that the file is associated with and then have some custom logic in the parquet scanner to do partition pruning. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org