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ASF GitHub Bot updated FLINK-24610: ----------------------------------- Labels: pull-request-available (was: ) > Flink projection common expression elimination > ---------------------------------------------- > > Key: FLINK-24610 > URL: https://issues.apache.org/jira/browse/FLINK-24610 > Project: Flink > Issue Type: Improvement > Components: Table SQL / Planner > Reporter: Lyn Zhang > Priority: Major > Labels: pull-request-available > > Flink sql projection can not reuse common expression in runtime stage. > For example the sql: SELECT split(a, '_'_)[1], split(a, '_'_)[2] FROM table. > The function split(a, '_') will be invoked 2 times per row data, We can > improve it. -- This message was sent by Atlassian Jira (v8.3.4#803005)