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From prashanth-vasudev <>
Subject [GitHub] incubator-trafodion pull request #815: [TRAFODION-2326] TopN sort reuse of r...
Date Fri, 04 Nov 2016 07:30:12 GMT
Github user prashanth-vasudev commented on a diff in the pull request:
    --- Diff: core/sql/executor/ex_sort.h ---
    @@ -356,4 +363,119 @@ class ExSortFromTopPrivateState : public ex_tcb_private_state
       ~ExSortFromTopPrivateState();       // destructor
    +class ExSortBufferPool : public NABasicObject
    --- End diff --
    Creating a abstract class here was considered as the first option. However, making this
change would have ripple effect all over the code since sql_buffer_pool is packed and unpacked
when hopping many operators. If a major change is made to sql buffer management in future,
it would be nice to consider having a abstract class. For now, to keep the change concise,
this approach was taken. 

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