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Xintong Song updated FLINK-17337: --------------------------------- Fix Version/s: 1.18.0 (was: 1.17.0) > Send UPDATE messages instead of INSERT and DELETE in streaming join operator > ---------------------------------------------------------------------------- > > Key: FLINK-17337 > URL: https://issues.apache.org/jira/browse/FLINK-17337 > Project: Flink > Issue Type: Improvement > Components: Table SQL / Runtime > Reporter: Jark Wu > Priority: Minor > Labels: auto-deprioritized-major > Fix For: 1.18.0 > > > Currently, streaming join operator always send INSERT and DELETE messages for > simplification if it's not inner join. However, we can send UPDATE_BEFORE and > UPDATE_AFTER messages instead of INSERT and DELETE. For example, when we > recieve right record "b", then we can send {{UB[a, null]}} and {{UA[a,b]}} > instead of {{D[a,null]}}, {{I[a,b]}}. This is an optimization, because UB can > be omitted in some cases to reduce IO cost and computation. -- This message was sent by Atlassian Jira (v8.20.10#820010)