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https://issues.apache.org/jira/browse/FLINK-8002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244208#comment-16244208
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ASF GitHub Bot commented on FLINK-8002:
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Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/4962
Merging
> Incorrect join window boundaries for LESS_THAN and GREATER_THAN predicates
> --------------------------------------------------------------------------
>
> Key: FLINK-8002
> URL: https://issues.apache.org/jira/browse/FLINK-8002
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Affects Versions: 1.4.0
> Reporter: Fabian Hueske
> Assignee: Fabian Hueske
> Priority: Critical
> Fix For: 1.4.0
>
>
> The boundaries of LESS_THAN and GREATER_THAN predicates are not correctly
> computed if the time attribute of the right table is referenced on the left
> side of the join predicate.
> Instead of adding (subtracting) 1 millisecond, 1 millisecond is subtracted
> (added).
> Hence, the boundary is off-by-2.
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