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Rong Rong commented on FLINK-8739: ---------------------------------- No I haven't started. please feel free to assign to yourself. > Optimize runtime support for distinct filter > -------------------------------------------- > > Key: FLINK-8739 > URL: https://issues.apache.org/jira/browse/FLINK-8739 > Project: Flink > Issue Type: Improvement > Components: Table API & SQL > Reporter: Rong Rong > Priority: Major > > Possible optimizaitons: > 1. Decouple distinct map and actual accumulator so that they can separately > be created in codegen. > 2. Reuse same distinct accumulator for filtering, e.g. `SELECT > COUNT(DISTINCT(a)), SUM(DISTINCT(a))` should reuse the same distinct map. -- This message was sent by Atlassian JIRA (v7.6.3#76005)