Method push

src/backend/common/FFTPlanCache.hpp:59–63

pushes plan to the front of cache(queue)

    // pushes plan to the front of cache(queue)
    void push(const std::string key, plan_t plan) {
        if (mCache.size() >= mMaxCacheSize) mCache.pop_back();

        mCache.push_front(plan_pair_t(key, plan));
    }

   protected:
    FFTPlanCache(FFTPlanCache const&);