Sergey Shelukhin commented on HIVE-18571:

Rebased the patch and updated to fix some tests.
Added AcidUtils method to collect files for stats based on ACID state, that can 
be used for analyze queries.
However, I'm not sure it can be used at any other time (e.g. during 
insert/create) because current ACID state does not reflect the transaction that 
is in progress.
I think we can tackle that in a followup jira, I left a bunch of TODOs.

> stats issues for MM tables
> --------------------------
>                 Key: HIVE-18571
>                 URL: https://issues.apache.org/jira/browse/HIVE-18571
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Major
>         Attachments: HIVE-18571.01.patch, HIVE-18571.02.patch, 
> HIVE-18571.patch
> There are multiple stats aggregation issues with MM tables.
> Some simple stats are double counted and some stats (simple stats) are 
> invalid for ACID table dirs altogether. 
> I have a patch almost ready, need to fix some more stuff and clean up.

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