mirror of
https://github.com/ClickHouse/ClickHouse.git
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cb70a5a77c
* Try fix macos build * Try fix macos build
246 lines
8.9 KiB
C++
246 lines
8.9 KiB
C++
#include <DataStreams/OneBlockInputStream.h>
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#include <Dictionaries/LibraryDictionarySource.h>
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#include <Interpreters/Context.h>
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#include <Poco/File.h>
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#include "LibraryDictionarySourceExternal.h"
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#include <common/logger_useful.h>
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#include <ext/bit_cast.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int NOT_IMPLEMENTED;
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extern const int SIZES_OF_COLUMNS_DOESNT_MATCH;
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extern const int FILE_DOESNT_EXIST;
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}
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class CStringsHolder
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{
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public:
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using Container = std::vector<std::string>;
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explicit CStringsHolder(const Container & strings_pass)
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{
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strings_holder = strings_pass;
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strings.size = strings_holder.size();
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ptr_holder = std::make_unique<ClickHouseLibrary::CString[]>(strings.size);
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strings.data = ptr_holder.get();
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size_t i = 0;
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for (auto & str : strings_holder)
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{
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strings.data[i] = str.c_str();
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++i;
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}
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}
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ClickHouseLibrary::CStrings strings; // will pass pointer to lib
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private:
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std::unique_ptr<ClickHouseLibrary::CString[]> ptr_holder = nullptr;
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Container strings_holder;
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};
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namespace
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{
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const std::string lib_config_settings = ".settings";
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CStringsHolder getLibSettings(const Poco::Util::AbstractConfiguration & config, const std::string & config_root)
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{
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Poco::Util::AbstractConfiguration::Keys config_keys;
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config.keys(config_root, config_keys);
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CStringsHolder::Container strings;
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for (const auto & key : config_keys)
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{
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std::string key_name = key;
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auto bracket_pos = key.find('[');
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if (bracket_pos != std::string::npos && bracket_pos > 0)
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key_name = key.substr(0, bracket_pos);
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strings.emplace_back(key_name);
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strings.emplace_back(config.getString(config_root + '.' + key));
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}
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return CStringsHolder(strings);
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}
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bool dataToBlock(const void * data, Block & block)
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{
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if (!data)
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return true;
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auto columns_received = static_cast<const ClickHouseLibrary::ColumnsUInt64 *>(data);
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std::vector<IColumn *> columns(block.columns());
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for (const auto i : ext::range(0, columns.size()))
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columns[i] = block.getByPosition(i).column.get();
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for (size_t col_n = 0; col_n < columns_received->size; ++col_n)
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{
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if (columns.size() != columns_received->data[col_n].size)
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throw Exception("Received unexpected number of columns: " + std::to_string(columns_received->data[col_n].size) + ", must be"
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+ std::to_string(columns.size()),
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ErrorCodes::SIZES_OF_COLUMNS_DOESNT_MATCH);
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for (size_t row_n = 0; row_n < columns_received->data[col_n].size; ++row_n)
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{
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columns[row_n]->insert(static_cast<UInt64>(columns_received->data[col_n].data[row_n]));
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}
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}
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return false;
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}
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}
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LibraryDictionarySource::LibraryDictionarySource(const DictionaryStructure & dict_struct_,
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const Poco::Util::AbstractConfiguration & config,
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const std::string & config_prefix,
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Block & sample_block,
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const Context & context)
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: log(&Logger::get("LibraryDictionarySource")),
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dict_struct{dict_struct_},
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config_prefix{config_prefix},
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path{config.getString(config_prefix + ".path", "")},
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sample_block{sample_block},
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context(context)
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{
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if (!Poco::File(path).exists())
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{
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throw Exception("LibraryDictionarySource: Can't load lib " + toString() + ": " + Poco::File(path).path() + " - File doesn't exist",
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ErrorCodes::FILE_DOESNT_EXIST);
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}
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description.init(sample_block);
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library = std::make_shared<SharedLibrary>(path);
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settings = std::make_shared<CStringsHolder>(getLibSettings(config, config_prefix + lib_config_settings));
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}
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LibraryDictionarySource::LibraryDictionarySource(const LibraryDictionarySource & other)
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: log(&Logger::get("LibraryDictionarySource")),
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dict_struct{other.dict_struct},
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config_prefix{other.config_prefix},
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path{other.path},
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sample_block{other.sample_block},
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context(other.context)
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{
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}
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BlockInputStreamPtr LibraryDictionarySource::loadAll()
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{
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LOG_TRACE(log, "loadAll " + toString());
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auto columns_holder = std::make_unique<ClickHouseLibrary::CString[]>(dict_struct.attributes.size());
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ClickHouseLibrary::CStrings columns{
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static_cast<decltype(ClickHouseLibrary::CStrings::data)>(columns_holder.get()), dict_struct.attributes.size()};
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size_t i = 0;
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for (auto & a : dict_struct.attributes)
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{
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columns.data[i] = a.name.c_str();
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++i;
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}
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void * data_ptr = nullptr;
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/// Get function pointer before dataAllocate call because library->get may throw.
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auto fptr
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= library->get<void * (*)(decltype(data_ptr), decltype(&settings->strings), decltype(&columns))>("ClickHouseDictionary_v1_loadAll");
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data_ptr = library->get<void * (*)()>("ClickHouseDictionary_v1_dataAllocate")();
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auto data = fptr(data_ptr, &settings->strings, &columns);
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auto block = description.sample_block.cloneEmpty();
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dataToBlock(data, block);
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library->get<void (*)(void *)>("ClickHouseDictionary_v1_dataDelete")(data_ptr);
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return std::make_shared<OneBlockInputStream>(block);
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}
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BlockInputStreamPtr LibraryDictionarySource::loadIds(const std::vector<UInt64> & ids)
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{
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LOG_TRACE(log, "loadIds " << toString() << " size = " << ids.size());
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const ClickHouseLibrary::VectorUInt64 ids_data{ext::bit_cast<decltype(ClickHouseLibrary::VectorUInt64::data)>(ids.data()), ids.size()};
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auto columns_holder = std::make_unique<ClickHouseLibrary::CString[]>(dict_struct.attributes.size());
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ClickHouseLibrary::CStrings columns_pass{
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static_cast<decltype(ClickHouseLibrary::CStrings::data)>(columns_holder.get()), dict_struct.attributes.size()};
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size_t i = 0;
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for (auto & a : dict_struct.attributes)
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{
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columns_pass.data[i] = a.name.c_str();
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++i;
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}
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void * data_ptr = nullptr;
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/// Get function pointer before dataAllocate call because library->get may throw.
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auto fptr = library->get<void * (*)(decltype(data_ptr), decltype(&settings->strings), decltype(&columns_pass), decltype(&ids_data))>(
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"ClickHouseDictionary_v1_loadIds");
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data_ptr = library->get<void * (*)()>("ClickHouseDictionary_v1_dataAllocate")();
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auto data = fptr(data_ptr, &settings->strings, &columns_pass, &ids_data);
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auto block = description.sample_block.cloneEmpty();
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dataToBlock(data, block);
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library->get<void (*)(void * data_ptr)>("ClickHouseDictionary_v1_dataDelete")(data_ptr);
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return std::make_shared<OneBlockInputStream>(block);
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}
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BlockInputStreamPtr LibraryDictionarySource::loadKeys(const Columns & key_columns, const std::vector<std::size_t> & requested_rows)
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{
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LOG_TRACE(log, "loadKeys " << toString() << " size = " << requested_rows.size());
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/*
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auto columns_c = std::make_unique<ClickHouseLibrary::Columns>(key_columns.size() + 1);
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size_t i = 0;
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for (auto & column : key_columns)
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{
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columns_c[i] = column->getName().c_str();
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++i;
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}
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columns_c[i] = nullptr;
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*/
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auto columns_holder = std::make_unique<ClickHouseLibrary::CString[]>(key_columns.size());
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ClickHouseLibrary::CStrings columns_pass{
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static_cast<decltype(ClickHouseLibrary::CStrings::data)>(columns_holder.get()), key_columns.size()};
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size_t key_columns_n = 0;
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for (auto & column : key_columns)
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{
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columns_pass.data[key_columns_n] = column->getName().c_str();
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++key_columns_n;
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}
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const ClickHouseLibrary::VectorUInt64 requested_rows_c{ext::bit_cast<decltype(ClickHouseLibrary::VectorUInt64::data)>(requested_rows.data()), requested_rows.size()};
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void * data_ptr = nullptr;
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/// Get function pointer before dataAllocate call because library->get may throw.
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auto fptr
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= library->get<void * (*)(decltype(data_ptr), decltype(&settings->strings), decltype(&columns_pass), decltype(&requested_rows_c))>(
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"ClickHouseDictionary_v1_loadKeys");
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data_ptr = library->get<void * (*)()>("ClickHouseDictionary_v1_dataAllocate")();
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auto data = fptr(data_ptr, &settings->strings, &columns_pass, &requested_rows_c);
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auto block = description.sample_block.cloneEmpty();
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dataToBlock(data, block);
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library->get<void (*)(void * data_ptr)>("ClickHouseDictionary_v1_dataDelete")(data_ptr);
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return std::make_shared<OneBlockInputStream>(block);
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}
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bool LibraryDictionarySource::isModified() const
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{
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auto fptr = library->tryGet<void * (*)(decltype(&settings->strings))>("ClickHouseDictionary_v1_isModified");
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if (fptr)
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return fptr(&settings->strings);
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return true;
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}
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bool LibraryDictionarySource::supportsSelectiveLoad() const
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{
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auto fptr = library->tryGet<void * (*)(decltype(&settings->strings))>("ClickHouseDictionary_v1_supportsSelectiveLoad");
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if (fptr)
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return fptr(&settings->strings);
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return true;
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}
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DictionarySourcePtr LibraryDictionarySource::clone() const
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{
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return std::make_unique<LibraryDictionarySource>(*this);
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}
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std::string LibraryDictionarySource::toString() const
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{
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return path;
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}
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}
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