Kenneth Knowles created BEAM-6110: ------------------------------------- Summary: Beam SQL join moves element timestamps to EOW sometimes, not always Key: BEAM-6110 URL: https://issues.apache.org/jira/browse/BEAM-6110 Project: Beam Issue Type: Bug Components: dsl-sql Reporter: Kenneth Knowles Assignee: Kenneth Knowles
When a CoGBK join is chosen, element timestamps move to EOW. When side input or lookup join is chosen, element timestamps are the timestamps from the main input element. In SQL sementics, these timestamps are not observable, as windowing is assigned at the next GROUP BY. So we just need the output to hold the watermark so that nothing becomes late or droppable, which implies we need to use MIN timestamp combiner. -- This message was sent by Atlassian JIRA (v7.6.3#76005)