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From "Maryann Xue (JIRA)" <>
Subject [jira] [Commented] (PHOENIX-3050) Handle DESC columns in child/parent join optimization
Date Thu, 26 Oct 2017 22:34:02 GMT


Maryann Xue commented on PHOENIX-3050:

[~jamestaylor], it turns out to be a bug in skip-scan rather than the join optimization. So
could you please take a look at PHOENIX-4322? As soon as that gets fixed, I can enable this
optimization on DESC columns right away.

> Handle DESC columns in child/parent join optimization
> -----------------------------------------------------
>                 Key: PHOENIX-3050
>                 URL:
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.8.0
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>            Priority: Minor
> We found that child/parent join optimization would not work with DESC pk columns. So
as a quick fix for PHOENIX-3029, we simply avoid DESC columns when optimizing, which would
have no impact on the overall approach and no impact on ASC columns.
> But eventually we need to make the optimization work with DESC columns too.

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