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From "Timo Walther (Jira)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-19830) Properly implements processing-time temporal table join
Date Thu, 27 May 2021 08:43:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-19830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timo Walther updated FLINK-19830:
---------------------------------
    Labels:   (was: stale-major)

> Properly implements processing-time temporal table join
> -------------------------------------------------------
>
>                 Key: FLINK-19830
>                 URL: https://issues.apache.org/jira/browse/FLINK-19830
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Runtime
>            Reporter: Leonard Xu
>            Priority: Major
>             Fix For: 1.14.0
>
>
> The exsiting TemporalProcessTimeJoinOperator has already supported temporal table join.
> However, the semantic of this implementation is problematic, because the join processing
for left stream doesn't wait for the complete snapshot of temporal table, this may mislead
users in production environment.
> Under the processing time temporal join semantics, to get the complete snapshot of temporal
table may need introduce new mechanism in FLINK SQL in the future.



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