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ASF GitHub Bot commented on BEAM-2477: -------------------------------------- Github user JingsongLi closed the pull request at: https://github.com/apache/beam/pull/3398 > 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 > Labels: dsl_sql_merge > > 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)