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Jark Wu commented on FLINK-17397: --------------------------------- The fundamental need from the user and me is support to join (or called "processing-time temporal join") a bounded side input. So I agree with you, support {{ScanTableSource}} for processing-time temporal join can also resolve the problem. > FileSystemTableFactory supports LookupableTableSource > ------------------------------------------------------ > > Key: FLINK-17397 > URL: https://issues.apache.org/jira/browse/FLINK-17397 > Project: Flink > Issue Type: Sub-task > Components: Connectors / FileSystem > Reporter: Jingsong Lee > Priority: Major > Labels: starter > Fix For: 1.12.0 > > -- This message was sent by Atlassian Jira (v8.3.4#803005)