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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| #include <Common/Exception.h> | ||
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| #include <Storages/DeltaMerge/ValueSpace.h> | ||
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| namespace DB | ||
| { | ||
| MemoryValueSpace::MemoryValueSpace(String name, const NamesAndTypesList & name_types, const SortDescription & sort_desc) | ||
| : log(&Logger::get("MemoryValueSpace(" + name + ")")) | ||
| { | ||
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| for (const auto & nt : name_types) | ||
| { | ||
| names_and_types.emplace_back(nt.name, nt.type); | ||
| split_columns.emplace_back(nt.name, nt.type); | ||
| } | ||
| for (const auto & desc : sort_desc) | ||
| sort_column_names.insert(desc.column_name); | ||
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| num_columns = split_columns.size(); | ||
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| LOG_TRACE(log, "MM create"); | ||
| } | ||
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| Ids MemoryValueSpace::addFromInsert(const Block & block) | ||
| { | ||
| if (unlikely(block.columns() < split_columns.size())) | ||
| throw Exception("Not enough columns!"); | ||
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| Ids ids; | ||
| UInt64 id = split_columns.front().size(); | ||
| for (size_t i = 0; i < block.rows(); ++i) | ||
| ids.push_back(id++); | ||
| for (auto & split_column : split_columns) | ||
| split_column.append(*block.getByName(split_column.name).column); | ||
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| return ids; | ||
| } | ||
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| RefTuples MemoryValueSpace::addFromModify(const Block & block) | ||
| { | ||
| if (unlikely(block.columns() < split_columns.size())) | ||
| throw Exception("Not enough columns!"); | ||
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| RefTuples tuples; | ||
| auto rows = block.rows(); | ||
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| std::vector<std::vector<UInt64>> idmap; | ||
| for (size_t column_id = 0; column_id < split_columns.size(); ++column_id) | ||
| { | ||
| auto & split_column = split_columns[column_id]; | ||
| auto offset = split_column.size(); | ||
| if (sort_column_names.find(split_column.name) == sort_column_names.end() && block.has(split_column.name)) | ||
| { | ||
| split_column.append(*block.getByName(split_column.name).column); | ||
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| idmap.emplace_back(); | ||
| auto & ids = idmap[column_id]; | ||
| for (size_t row_id = 0; row_id < rows; ++row_id) | ||
| ids.push_back(offset++); | ||
| } | ||
| else | ||
| { | ||
| idmap.emplace_back(rows, INVALID_ID); | ||
| } | ||
| } | ||
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| for (size_t row_id = 0; row_id < rows; ++row_id) | ||
| { | ||
| ColumnAndValues values; | ||
| for (size_t column_id = 0; column_id < split_columns.size(); ++column_id) | ||
| { | ||
| auto value_id = idmap[column_id][row_id]; | ||
| if (value_id != INVALID_ID) | ||
| values.emplace_back(column_id, value_id); | ||
| } | ||
| tuples.emplace_back(values); | ||
| } | ||
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| return tuples; | ||
| } | ||
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| void MemoryValueSpace::removeFromInsert(UInt64 id) | ||
| { | ||
| for (size_t i = 0; i < num_columns; ++i) | ||
| split_columns[i].remove(id); | ||
| } | ||
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| void MemoryValueSpace::removeFromModify(UInt64 id, size_t column_id) | ||
| { | ||
| split_columns[column_id].remove(id); | ||
| } | ||
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| UInt64 MemoryValueSpace::withModify(UInt64 old_tuple_id, const ValueSpace & modify_value_space, const RefTuple & tuple) | ||
| { | ||
| // TODO improvement: in-place update for fixed size type, like numbers. | ||
| for (size_t column_id = 0; column_id < split_columns.size(); ++column_id) | ||
| { | ||
| auto & split_column = split_columns[column_id]; | ||
| size_t new_value_id = INVALID_ID; | ||
| for (const auto & cv : tuple.values) | ||
| { | ||
| if (cv.column == column_id) | ||
| { | ||
| new_value_id = cv.value; | ||
| break; | ||
| } | ||
| } | ||
| if (new_value_id != INVALID_ID) | ||
| { | ||
| split_column.append(modify_value_space.split_columns[column_id], new_value_id); | ||
| } | ||
| else | ||
| { | ||
| split_column.append(this->split_columns[column_id], old_tuple_id); | ||
| } | ||
| } | ||
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| removeFromInsert(old_tuple_id); | ||
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| return split_columns.front().size() - 1; | ||
| } | ||
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| void MemoryValueSpace::gc() | ||
| { | ||
| for (auto & sc : split_columns) | ||
| sc.gc(); | ||
| } | ||
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| } // namespace DB |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,8 @@ | ||
| include_directories (${CMAKE_CURRENT_BINARY_DIR}) | ||
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| add_executable (delta_tree delta_tree.cpp) | ||
| add_executable (delta_merge_block_stream delta_merge_block_stream.cpp) | ||
| add_executable (delta_merge_storage delta_merge_storage.cpp) | ||
| target_link_libraries (delta_tree dbms) | ||
| target_link_libraries (delta_merge_block_stream dbms) | ||
| target_link_libraries (delta_merge_storage dbms) |
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