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better retrieval

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This commit is contained in:
Nikita Mikhaylov 2020-01-30 15:58:15 +03:00
parent 149be6c0b1
commit 4f2b6bd23d
1 changed files with 4 additions and 3 deletions
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7
dbms/src/Dictionaries/CacheDictionary.h
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@ -381,12 +381,13 @@ private:
/// not to do useless allocations later. /// not to do useless allocations later.
size_t total_requested_keys_count = 0; size_t total_requested_keys_count = 0;
helper.push_back(0);
for (auto & unit_ptr: update_request) for (auto & unit_ptr: update_request)
{ {
total_requested_keys_count += unit_ptr->requested_ids.size(); total_requested_keys_count += unit_ptr->requested_ids.size();
helper.push_back(unit_ptr->requested_ids.size() + helper.back()); if (helper.empty())
helper.push_back(unit_ptr->requested_ids.size());
else
helper.push_back(unit_ptr->requested_ids.size() + helper.back());
present_id_handlers.emplace_back(unit_ptr->present_id_handler); present_id_handlers.emplace_back(unit_ptr->present_id_handler);
absent_id_handlers.emplace_back(unit_ptr->absent_id_handler); absent_id_handlers.emplace_back(unit_ptr->absent_id_handler);
} }