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Posted to dev@calcite.apache.org by "Ruben Q L (Jira)" <ji...@apache.org> on 2019/11/27 16:51:00 UTC

[jira] [Created] (CALCITE-3542) Implement RepeatUnion All=false

Ruben Q L created CALCITE-3542:
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             Summary: Implement RepeatUnion All=false
                 Key: CALCITE-3542
                 URL: https://issues.apache.org/jira/browse/CALCITE-3542
             Project: Calcite
          Issue Type: New Feature
    Affects Versions: 1.21.0
            Reporter: Ruben Q L
            Assignee: Ruben Q L
             Fix For: 1.22.0


CALCITE-2812 introduced recursive queries in Calcite via the new operator RepeatUnion.
However, this initial implementation was not complete, since it only provided RepeatUnion ALL (i.e. duplicates were returned).
The current ticket aims to implement the missing feature:  RepeatUnion non-ALL (i.e. duplicates must be discarded).



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