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From jianqiao <...@git.apache.org>
Subject [GitHub] incubator-quickstep pull request #73: Move hash join's probe and build node ...
Date Tue, 02 Aug 2016 17:57:07 GMT
Github user jianqiao commented on a diff in the pull request:

    --- Diff: query_optimizer/rules/BottomUpRule.hpp ---
    @@ -80,6 +81,8 @@ class BottomUpRule : public Rule<TreeType> {
       virtual TreeNodePtr applyToNode(const TreeNodePtr &node) = 0;
    +  virtual void init(const TreeNodePtr &node) = 0;
    --- End diff --
    Let's provide a default no-op implementation for `init()` here (instead of pure virtual)
so we don't have to implement it for every subclass.

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