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significantly improved performance

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This commit is contained in:
Артем Стрельцов 2020-05-05 21:49:22 +03:00
parent eb5488faeb
commit a51440cc31
1 changed files with 10 additions and 2 deletions
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12
src/Dictionaries/DirectDictionary.cpp
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@ -426,7 +426,11 @@ void DirectDictionary::getItemsImpl(
for (const auto row : ext::range(0, rows))
value_by_key[ids[row]] = get_default(row);
auto stream = source_ptr->loadAll();
std::vector<Key> to_load;
for (auto it = value_by_key.begin(); it != value_by_key.end(); ++it)
to_load.push_back(static_cast<Key>(it->getKey()));
auto stream = source_ptr->loadIds(to_load);
stream->readPrefix();
while (const auto block = stream->read())
@ -475,7 +479,11 @@ void DirectDictionary::getItemsStringImpl(
for (const auto row : ext::range(0, rows))
value_by_key[ids[row]] = get_default(row);
auto stream = source_ptr->loadAll();
std::vector<Key> to_load;
for (auto it = value_by_key.begin(); it != value_by_key.end(); ++it)
to_load.push_back(static_cast<Key>(it->getKey()));
auto stream = source_ptr->loadIds(to_load);
stream->readPrefix();
while (const auto block = stream->read())
{