Tim Armstrong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/11007 )

Change subject: IMPALA-7333: remove MarkNeedsDeepCopy() in agg and BTS
......................................................................


Patch Set 8:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/11007/8/be/src/runtime/buffered-tuple-stream.cc
File be/src/runtime/buffered-tuple-stream.cc:

http://gerrit.cloudera.org:8080/#/c/11007/8/be/src/runtime/buffered-tuple-stream.cc@763
PS8, Line 763: has_read_write_page
> Is this always safe? If next row will not fit into the page then the write
I think I see your point - in that case on the next GetNext() call we go down 
the branch below, right?

  if (UNLIKELY(read_page_ == pages_.end()
          || read_page_rows_returned_ == read_page_->num_rows)) {



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I91ac53bacc00df4726c015a30ba5a2026aa4b5f5
Gerrit-Change-Number: 11007
Gerrit-PatchSet: 8
Gerrit-Owner: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Thomas Marshall <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Comment-Date: Thu, 26 Jul 2018 23:33:14 +0000
Gerrit-HasComments: Yes

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