Todd Lipcon has posted comments on this change.

Change subject: Don't output unobservable rows from the MemRowset
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Patch Set 9:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4994/9//COMMIT_MSG
Commit Message:

Line 28: for the row.
> (unrelated nit) Isn't it more like:
Yea, I agree it's impossible to establish which one is older, but you can only 
get to this situation when the AHM has moved above 3 (such that you are 
removing the UNDO @ 3). Given that, no one can ever read this base data, so it 
doesn't actually matter which one you pick, does it?

Was thinking an end-to-end test that does the above sequence at a tablet level 
would be a good way to show what happens without the patch and why it causes a 
problem (some incorrect scan results or whatever)


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ieab52a1aa68494218f91f3acd31ef8ddf352bd57
Gerrit-PatchSet: 9
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: David Ribeiro Alves <[email protected]>
Gerrit-Reviewer: David Ribeiro Alves <[email protected]>
Gerrit-Reviewer: Jean-Daniel Cryans <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <[email protected]>
Gerrit-Reviewer: Tidy Bot
Gerrit-Reviewer: Todd Lipcon <[email protected]>
Gerrit-HasComments: Yes

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