Jingsong Lee created BEAM-2477: ---------------------------------- Summary: BeamAggregationRel should use Combine.perKey instead of GroupByKey Key: BEAM-2477 URL: https://issues.apache.org/jira/browse/BEAM-2477 Project: Beam Issue Type: Improvement Components: dsl-sql Reporter: Jingsong Lee Assignee: Jingsong Lee
Their semantics are the same, but the efficiency of implementation is quite different, and at the runner level there is a lot of optimization for `Combine.perKey`. -- This message was sent by Atlassian JIRA (v6.4.14#64029)