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From "Zoltan Haindrich (JIRA)" <>
Subject [jira] [Commented] (HIVE-19995) Aggregate row traffic for acid tables
Date Sun, 01 Jul 2018 10:47:00 GMT


Zoltan Haindrich commented on HIVE-19995:

these druid tests seems to be failing even without the patch....reattaching

> Aggregate row traffic for acid tables
> -------------------------------------
>                 Key: HIVE-19995
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Statistics, Transactions
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>         Attachments: HIVE-19995.01.patch, HIVE-19995.01wip01.patch, HIVE-19995.01wip01.patch,
HIVE-19995.01wip02.patch, HIVE-19995.02.patch, HIVE-19995.02.patch, HIVE-19995.03.patch, HIVE-19995.03.patch,
HIVE-19995.03.patch, HIVE-19995.03.patch
> for transactional tables we store basic stats in case of explicit analyze/rewrite; but
doesn't do anything in other cases....which may even lead to plans which oom...
> It would be better to aggregate the total row traffic...because that is already available;
so that operator tree estimations could work with a real upper bound of the row numbers.

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