#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include namespace DB { namespace ErrorCodes { extern const int UNKNOWN_FORMAT; extern const int LOGICAL_ERROR; extern const int FORMAT_IS_NOT_SUITABLE_FOR_INPUT; extern const int FORMAT_IS_NOT_SUITABLE_FOR_OUTPUT; extern const int BAD_ARGUMENTS; } const FormatFactory::Creators & FormatFactory::getCreators(const String & name) const { auto it = dict.find(name); if (dict.end() != it) return it->second; throw Exception("Unknown format " + name, ErrorCodes::UNKNOWN_FORMAT); } FormatSettings getFormatSettings(ContextPtr context) { const auto & settings = context->getSettingsRef(); return getFormatSettings(context, settings); } template FormatSettings getFormatSettings(ContextPtr context, const Settings & settings) { FormatSettings format_settings; format_settings.avro.allow_missing_fields = settings.input_format_avro_allow_missing_fields; format_settings.avro.output_codec = settings.output_format_avro_codec; format_settings.avro.output_sync_interval = settings.output_format_avro_sync_interval; format_settings.avro.schema_registry_url = settings.format_avro_schema_registry_url.toString(); format_settings.avro.string_column_pattern = settings.output_format_avro_string_column_pattern.toString(); format_settings.avro.output_rows_in_file = settings.output_format_avro_rows_in_file; format_settings.avro.null_as_default = settings.input_format_avro_null_as_default; format_settings.csv.allow_double_quotes = settings.format_csv_allow_double_quotes; format_settings.csv.allow_single_quotes = settings.format_csv_allow_single_quotes; format_settings.csv.crlf_end_of_line = settings.output_format_csv_crlf_end_of_line; format_settings.csv.delimiter = settings.format_csv_delimiter; format_settings.csv.tuple_delimiter = settings.format_csv_delimiter; format_settings.csv.empty_as_default = settings.input_format_csv_empty_as_default; format_settings.csv.enum_as_number = settings.input_format_csv_enum_as_number; format_settings.csv.null_representation = settings.format_csv_null_representation; format_settings.csv.arrays_as_nested_csv = settings.input_format_csv_arrays_as_nested_csv; format_settings.csv.use_best_effort_in_schema_inference = settings.input_format_csv_use_best_effort_in_schema_inference; format_settings.csv.skip_first_lines = settings.input_format_csv_skip_first_lines; format_settings.hive_text.fields_delimiter = settings.input_format_hive_text_fields_delimiter; format_settings.hive_text.collection_items_delimiter = settings.input_format_hive_text_collection_items_delimiter; format_settings.hive_text.map_keys_delimiter = settings.input_format_hive_text_map_keys_delimiter; format_settings.custom.escaping_rule = settings.format_custom_escaping_rule; format_settings.custom.field_delimiter = settings.format_custom_field_delimiter; format_settings.custom.result_after_delimiter = settings.format_custom_result_after_delimiter; format_settings.custom.result_before_delimiter = settings.format_custom_result_before_delimiter; format_settings.custom.row_after_delimiter = settings.format_custom_row_after_delimiter; format_settings.custom.row_before_delimiter = settings.format_custom_row_before_delimiter; format_settings.custom.row_between_delimiter = settings.format_custom_row_between_delimiter; format_settings.date_time_input_format = settings.date_time_input_format; format_settings.date_time_output_format = settings.date_time_output_format; format_settings.input_format_ipv4_default_on_conversion_error = settings.input_format_ipv4_default_on_conversion_error; format_settings.input_format_ipv6_default_on_conversion_error = settings.input_format_ipv6_default_on_conversion_error; format_settings.bool_true_representation = settings.bool_true_representation; format_settings.bool_false_representation = settings.bool_false_representation; format_settings.enable_streaming = settings.output_format_enable_streaming; format_settings.import_nested_json = settings.input_format_import_nested_json; format_settings.input_allow_errors_num = settings.input_format_allow_errors_num; format_settings.input_allow_errors_ratio = settings.input_format_allow_errors_ratio; format_settings.json.array_of_rows = settings.output_format_json_array_of_rows; format_settings.json.escape_forward_slashes = settings.output_format_json_escape_forward_slashes; format_settings.json.named_tuples_as_objects = settings.output_format_json_named_tuples_as_objects; format_settings.json.quote_64bit_integers = settings.output_format_json_quote_64bit_integers; format_settings.json.quote_denormals = settings.output_format_json_quote_denormals; format_settings.json.read_bools_as_numbers = settings.input_format_json_read_bools_as_numbers; format_settings.json.try_infer_numbers_from_strings = settings.input_format_json_try_infer_numbers_from_strings; format_settings.null_as_default = settings.input_format_null_as_default; format_settings.decimal_trailing_zeros = settings.output_format_decimal_trailing_zeros; format_settings.parquet.row_group_size = settings.output_format_parquet_row_group_size; format_settings.parquet.import_nested = settings.input_format_parquet_import_nested; format_settings.parquet.case_insensitive_column_matching = settings.input_format_parquet_case_insensitive_column_matching; format_settings.parquet.allow_missing_columns = settings.input_format_parquet_allow_missing_columns; format_settings.parquet.skip_columns_with_unsupported_types_in_schema_inference = settings.input_format_parquet_skip_columns_with_unsupported_types_in_schema_inference; format_settings.parquet.output_string_as_string = settings.output_format_parquet_string_as_string; format_settings.pretty.charset = settings.output_format_pretty_grid_charset.toString() == "ASCII" ? FormatSettings::Pretty::Charset::ASCII : FormatSettings::Pretty::Charset::UTF8; format_settings.pretty.color = settings.output_format_pretty_color; format_settings.pretty.max_column_pad_width = settings.output_format_pretty_max_column_pad_width; format_settings.pretty.max_rows = settings.output_format_pretty_max_rows; format_settings.pretty.max_value_width = settings.output_format_pretty_max_value_width; format_settings.pretty.output_format_pretty_row_numbers = settings.output_format_pretty_row_numbers; format_settings.protobuf.input_flatten_google_wrappers = settings.input_format_protobuf_flatten_google_wrappers; format_settings.protobuf.output_nullables_with_google_wrappers = settings.output_format_protobuf_nullables_with_google_wrappers; format_settings.protobuf.skip_fields_with_unsupported_types_in_schema_inference = settings.input_format_protobuf_skip_fields_with_unsupported_types_in_schema_inference; format_settings.regexp.escaping_rule = settings.format_regexp_escaping_rule; format_settings.regexp.regexp = settings.format_regexp; format_settings.regexp.skip_unmatched = settings.format_regexp_skip_unmatched; format_settings.schema.format_schema = settings.format_schema; format_settings.schema.format_schema_path = context->getFormatSchemaPath(); format_settings.schema.is_server = context->hasGlobalContext() && (context->getGlobalContext()->getApplicationType() == Context::ApplicationType::SERVER); format_settings.skip_unknown_fields = settings.input_format_skip_unknown_fields; format_settings.template_settings.resultset_format = settings.format_template_resultset; format_settings.template_settings.row_between_delimiter = settings.format_template_rows_between_delimiter; format_settings.template_settings.row_format = settings.format_template_row; format_settings.tsv.crlf_end_of_line = settings.output_format_tsv_crlf_end_of_line; format_settings.tsv.empty_as_default = settings.input_format_tsv_empty_as_default; format_settings.tsv.enum_as_number = settings.input_format_tsv_enum_as_number; format_settings.tsv.null_representation = settings.format_tsv_null_representation; format_settings.tsv.use_best_effort_in_schema_inference = settings.input_format_tsv_use_best_effort_in_schema_inference; format_settings.tsv.skip_first_lines = settings.input_format_tsv_skip_first_lines; format_settings.values.accurate_types_of_literals = settings.input_format_values_accurate_types_of_literals; format_settings.values.deduce_templates_of_expressions = settings.input_format_values_deduce_templates_of_expressions; format_settings.values.interpret_expressions = settings.input_format_values_interpret_expressions; format_settings.with_names_use_header = settings.input_format_with_names_use_header; format_settings.with_types_use_header = settings.input_format_with_types_use_header; format_settings.write_statistics = settings.output_format_write_statistics; format_settings.arrow.low_cardinality_as_dictionary = settings.output_format_arrow_low_cardinality_as_dictionary; format_settings.arrow.import_nested = settings.input_format_arrow_import_nested; format_settings.arrow.allow_missing_columns = settings.input_format_arrow_allow_missing_columns; format_settings.arrow.skip_columns_with_unsupported_types_in_schema_inference = settings.input_format_arrow_skip_columns_with_unsupported_types_in_schema_inference; format_settings.arrow.skip_columns_with_unsupported_types_in_schema_inference = settings.input_format_arrow_skip_columns_with_unsupported_types_in_schema_inference; format_settings.arrow.case_insensitive_column_matching = settings.input_format_arrow_case_insensitive_column_matching; format_settings.arrow.output_string_as_string = settings.output_format_arrow_string_as_string; format_settings.orc.import_nested = settings.input_format_orc_import_nested; format_settings.orc.allow_missing_columns = settings.input_format_orc_allow_missing_columns; format_settings.orc.row_batch_size = settings.input_format_orc_row_batch_size; format_settings.orc.skip_columns_with_unsupported_types_in_schema_inference = settings.input_format_orc_skip_columns_with_unsupported_types_in_schema_inference; format_settings.orc.import_nested = settings.input_format_orc_import_nested; format_settings.orc.allow_missing_columns = settings.input_format_orc_allow_missing_columns; format_settings.orc.row_batch_size = settings.input_format_orc_row_batch_size; format_settings.orc.skip_columns_with_unsupported_types_in_schema_inference = settings.input_format_orc_skip_columns_with_unsupported_types_in_schema_inference; format_settings.orc.case_insensitive_column_matching = settings.input_format_orc_case_insensitive_column_matching; format_settings.orc.output_string_as_string = settings.output_format_orc_string_as_string; format_settings.defaults_for_omitted_fields = settings.input_format_defaults_for_omitted_fields; format_settings.capn_proto.enum_comparing_mode = settings.format_capn_proto_enum_comparising_mode; format_settings.capn_proto.skip_fields_with_unsupported_types_in_schema_inference = settings.input_format_capn_proto_skip_fields_with_unsupported_types_in_schema_inference; format_settings.seekable_read = settings.input_format_allow_seeks; format_settings.msgpack.number_of_columns = settings.input_format_msgpack_number_of_columns; format_settings.msgpack.output_uuid_representation = settings.output_format_msgpack_uuid_representation; format_settings.max_rows_to_read_for_schema_inference = settings.input_format_max_rows_to_read_for_schema_inference; format_settings.column_names_for_schema_inference = settings.column_names_for_schema_inference; format_settings.schema_inference_hints = settings.schema_inference_hints; format_settings.mysql_dump.table_name = settings.input_format_mysql_dump_table_name; format_settings.mysql_dump.map_column_names = settings.input_format_mysql_dump_map_column_names; format_settings.sql_insert.max_batch_size = settings.output_format_sql_insert_max_batch_size; format_settings.sql_insert.include_column_names = settings.output_format_sql_insert_include_column_names; format_settings.sql_insert.table_name = settings.output_format_sql_insert_table_name; format_settings.sql_insert.use_replace = settings.output_format_sql_insert_use_replace; format_settings.sql_insert.quote_names = settings.output_format_sql_insert_quote_names; format_settings.try_infer_integers = settings.input_format_try_infer_integers; format_settings.try_infer_dates = settings.input_format_try_infer_dates; format_settings.try_infer_datetimes = settings.input_format_try_infer_datetimes; /// Validate avro_schema_registry_url with RemoteHostFilter when non-empty and in Server context if (format_settings.schema.is_server) { const Poco::URI & avro_schema_registry_url = settings.format_avro_schema_registry_url; if (!avro_schema_registry_url.empty()) context->getRemoteHostFilter().checkURL(avro_schema_registry_url); } return format_settings; } template FormatSettings getFormatSettings(ContextPtr context, const FormatFactorySettings & settings); template FormatSettings getFormatSettings(ContextPtr context, const Settings & settings); InputFormatPtr FormatFactory::getInput( const String & name, ReadBuffer & buf, const Block & sample, ContextPtr context, UInt64 max_block_size, const std::optional & _format_settings) const { auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); if (!getCreators(name).input_creator) { throw Exception("Format " + name + " is not suitable for input (with processors)", ErrorCodes::FORMAT_IS_NOT_SUITABLE_FOR_INPUT); } const Settings & settings = context->getSettingsRef(); const auto & file_segmentation_engine = getCreators(name).file_segmentation_engine; // Doesn't make sense to use parallel parsing with less than four threads // (segmentator + two parsers + reader). bool parallel_parsing = settings.input_format_parallel_parsing && file_segmentation_engine && settings.max_threads >= 4; if (settings.max_memory_usage && settings.min_chunk_bytes_for_parallel_parsing * settings.max_threads * 2 > settings.max_memory_usage) parallel_parsing = false; if (settings.max_memory_usage_for_user && settings.min_chunk_bytes_for_parallel_parsing * settings.max_threads * 2 > settings.max_memory_usage_for_user) parallel_parsing = false; if (parallel_parsing) { const auto & non_trivial_prefix_and_suffix_checker = getCreators(name).non_trivial_prefix_and_suffix_checker; /// Disable parallel parsing for input formats with non-trivial readPrefix() and readSuffix(). if (non_trivial_prefix_and_suffix_checker && non_trivial_prefix_and_suffix_checker(buf)) parallel_parsing = false; } if (parallel_parsing) { const auto & input_getter = getCreators(name).input_creator; RowInputFormatParams row_input_format_params; row_input_format_params.max_block_size = max_block_size; row_input_format_params.allow_errors_num = format_settings.input_allow_errors_num; row_input_format_params.allow_errors_ratio = format_settings.input_allow_errors_ratio; row_input_format_params.max_execution_time = settings.max_execution_time; row_input_format_params.timeout_overflow_mode = settings.timeout_overflow_mode; /// Const reference is copied to lambda. auto parser_creator = [input_getter, sample, row_input_format_params, format_settings] (ReadBuffer & input) -> InputFormatPtr { return input_getter(input, sample, row_input_format_params, format_settings); }; ParallelParsingInputFormat::Params params{ buf, sample, parser_creator, file_segmentation_engine, name, settings.max_threads, settings.min_chunk_bytes_for_parallel_parsing, context->getApplicationType() == Context::ApplicationType::SERVER}; return std::make_shared(params); } auto format = getInputFormat(name, buf, sample, context, max_block_size, format_settings); return format; } InputFormatPtr FormatFactory::getInputFormat( const String & name, ReadBuffer & buf, const Block & sample, ContextPtr context, UInt64 max_block_size, const std::optional & _format_settings) const { const auto & input_getter = getCreators(name).input_creator; if (!input_getter) throw Exception("Format " + name + " is not suitable for input", ErrorCodes::FORMAT_IS_NOT_SUITABLE_FOR_INPUT); const Settings & settings = context->getSettingsRef(); if (context->hasQueryContext() && settings.log_queries) context->getQueryContext()->addQueryFactoriesInfo(Context::QueryLogFactories::Format, name); auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); RowInputFormatParams params; params.max_block_size = max_block_size; params.allow_errors_num = format_settings.input_allow_errors_num; params.allow_errors_ratio = format_settings.input_allow_errors_ratio; params.max_execution_time = settings.max_execution_time; params.timeout_overflow_mode = settings.timeout_overflow_mode; auto format = input_getter(buf, sample, params, format_settings); /// It's a kludge. Because I cannot remove context from values format. if (auto * values = typeid_cast(format.get())) values->setContext(context); return format; } static void addExistingProgressToOutputFormat(OutputFormatPtr format, ContextPtr context) { auto * element_id = context->getProcessListElement(); if (element_id) { /// While preparing the query there might have been progress (for example in subscalar subqueries) so add it here auto current_progress = element_id->getProgressIn(); Progress read_progress{current_progress.read_rows, current_progress.read_bytes, current_progress.total_rows_to_read}; format->onProgress(read_progress); } } OutputFormatPtr FormatFactory::getOutputFormatParallelIfPossible( const String & name, WriteBuffer & buf, const Block & sample, ContextPtr context, WriteCallback callback, const std::optional & _format_settings) const { const auto & output_getter = getCreators(name).output_creator; if (!output_getter) throw Exception(ErrorCodes::FORMAT_IS_NOT_SUITABLE_FOR_OUTPUT, "Format {} is not suitable for output (with processors)", name); auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); const Settings & settings = context->getSettingsRef(); if (settings.output_format_parallel_formatting && getCreators(name).supports_parallel_formatting && !settings.output_format_json_array_of_rows) { auto formatter_creator = [output_getter, sample, callback, format_settings] (WriteBuffer & output) -> OutputFormatPtr { return output_getter(output, sample, {callback}, format_settings); }; ParallelFormattingOutputFormat::Params builder{buf, sample, formatter_creator, settings.max_threads}; if (context->hasQueryContext() && settings.log_queries) context->getQueryContext()->addQueryFactoriesInfo(Context::QueryLogFactories::Format, name); auto format = std::make_shared(builder); addExistingProgressToOutputFormat(format, context); return format; } return getOutputFormat(name, buf, sample, context, callback, _format_settings); } OutputFormatPtr FormatFactory::getOutputFormat( const String & name, WriteBuffer & buf, const Block & sample, ContextPtr context, WriteCallback callback, const std::optional & _format_settings) const { const auto & output_getter = getCreators(name).output_creator; if (!output_getter) throw Exception(ErrorCodes::FORMAT_IS_NOT_SUITABLE_FOR_OUTPUT, "Format {} is not suitable for output (with processors)", name); if (context->hasQueryContext() && context->getSettingsRef().log_queries) context->getQueryContext()->addQueryFactoriesInfo(Context::QueryLogFactories::Format, name); RowOutputFormatParams params; params.callback = std::move(callback); auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); /** TODO: Materialization is needed, because formats can use the functions `IDataType`, * which only work with full columns. */ auto format = output_getter(buf, sample, params, format_settings); /// Enable auto-flush for streaming mode. Currently it is needed by INSERT WATCH query. if (format_settings.enable_streaming) format->setAutoFlush(); /// It's a kludge. Because I cannot remove context from MySQL format. if (auto * mysql = typeid_cast(format.get())) mysql->setContext(context); addExistingProgressToOutputFormat(format, context); return format; } String FormatFactory::getContentType( const String & name, ContextPtr context, const std::optional & _format_settings) const { const auto & output_getter = getCreators(name).output_creator; if (!output_getter) throw Exception(ErrorCodes::FORMAT_IS_NOT_SUITABLE_FOR_OUTPUT, "Format {} is not suitable for output (with processors)", name); auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); Block empty_block; RowOutputFormatParams empty_params; WriteBufferFromOwnString empty_buffer; auto format = output_getter(empty_buffer, empty_block, empty_params, format_settings); return format->getContentType(); } SchemaReaderPtr FormatFactory::getSchemaReader( const String & name, ReadBuffer & buf, ContextPtr & context, const std::optional & _format_settings) const { const auto & schema_reader_creator = dict.at(name).schema_reader_creator; if (!schema_reader_creator) throw Exception("FormatFactory: Format " + name + " doesn't support schema inference.", ErrorCodes::LOGICAL_ERROR); auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); auto schema_reader = schema_reader_creator(buf, format_settings); if (schema_reader->needContext()) schema_reader->setContext(context); return schema_reader; } ExternalSchemaReaderPtr FormatFactory::getExternalSchemaReader( const String & name, ContextPtr & context, const std::optional & _format_settings) const { const auto & external_schema_reader_creator = dict.at(name).external_schema_reader_creator; if (!external_schema_reader_creator) throw Exception("FormatFactory: Format " + name + " doesn't support schema inference.", ErrorCodes::LOGICAL_ERROR); auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context); return external_schema_reader_creator(format_settings); } void FormatFactory::registerInputFormat(const String & name, InputCreator input_creator) { auto & target = dict[name].input_creator; if (target) throw Exception("FormatFactory: Input format " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(input_creator); registerFileExtension(name, name); } void FormatFactory::registerNonTrivialPrefixAndSuffixChecker(const String & name, NonTrivialPrefixAndSuffixChecker non_trivial_prefix_and_suffix_checker) { auto & target = dict[name].non_trivial_prefix_and_suffix_checker; if (target) throw Exception("FormatFactory: Non trivial prefix and suffix checker " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(non_trivial_prefix_and_suffix_checker); } void FormatFactory::registerAppendSupportChecker(const String & name, AppendSupportChecker append_support_checker) { auto & target = dict[name].append_support_checker; if (target) throw Exception("FormatFactory: Suffix checker " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(append_support_checker); } void FormatFactory::markFormatHasNoAppendSupport(const String & name) { registerAppendSupportChecker(name, [](const FormatSettings &){ return false; }); } bool FormatFactory::checkIfFormatSupportAppend(const String & name, ContextPtr context, const std::optional & format_settings_) { auto format_settings = format_settings_ ? *format_settings_ : getFormatSettings(context); auto & append_support_checker = dict[name].append_support_checker; /// By default we consider that format supports append return !append_support_checker || append_support_checker(format_settings); } void FormatFactory::registerOutputFormat(const String & name, OutputCreator output_creator) { auto & target = dict[name].output_creator; if (target) throw Exception("FormatFactory: Output format " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(output_creator); registerFileExtension(name, name); } void FormatFactory::registerFileExtension(const String & extension, const String & format_name) { file_extension_formats[boost::to_lower_copy(extension)] = format_name; } String FormatFactory::getFormatFromFileName(String file_name, bool throw_if_not_found) { if (file_name == "stdin") return getFormatFromFileDescriptor(STDIN_FILENO); CompressionMethod compression_method = chooseCompressionMethod(file_name, ""); if (CompressionMethod::None != compression_method) { auto pos = file_name.find_last_of('.'); if (pos != String::npos) file_name = file_name.substr(0, pos); } auto pos = file_name.find_last_of('.'); if (pos == String::npos) { if (throw_if_not_found) throw Exception(ErrorCodes::BAD_ARGUMENTS, "Cannot determine the file format by it's extension"); return ""; } String file_extension = file_name.substr(pos + 1, String::npos); boost::algorithm::to_lower(file_extension); auto it = file_extension_formats.find(file_extension); if (it == file_extension_formats.end()) { if (throw_if_not_found) throw Exception(ErrorCodes::BAD_ARGUMENTS, "Cannot determine the file format by it's extension"); return ""; } return it->second; } String FormatFactory::getFormatFromFileDescriptor(int fd) { #ifdef OS_LINUX std::string proc_path = fmt::format("/proc/self/fd/{}", fd); char file_path[PATH_MAX] = {'\0'}; if (readlink(proc_path.c_str(), file_path, sizeof(file_path) - 1) != -1) return getFormatFromFileName(file_path, false); return ""; #elif defined(OS_DARWIN) char file_path[PATH_MAX] = {'\0'}; if (fcntl(fd, F_GETPATH, file_path) != -1) return getFormatFromFileName(file_path, false); return ""; #else return ""; #endif } void FormatFactory::registerFileSegmentationEngine(const String & name, FileSegmentationEngine file_segmentation_engine) { auto & target = dict[name].file_segmentation_engine; if (target) throw Exception("FormatFactory: File segmentation engine " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(file_segmentation_engine); } void FormatFactory::registerSchemaReader(const String & name, SchemaReaderCreator schema_reader_creator) { auto & target = dict[name].schema_reader_creator; if (target) throw Exception("FormatFactory: Schema reader " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(schema_reader_creator); } void FormatFactory::registerExternalSchemaReader(const String & name, ExternalSchemaReaderCreator external_schema_reader_creator) { auto & target = dict[name].external_schema_reader_creator; if (target) throw Exception("FormatFactory: Schema reader " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(external_schema_reader_creator); } void FormatFactory::markOutputFormatSupportsParallelFormatting(const String & name) { auto & target = dict[name].supports_parallel_formatting; if (target) throw Exception("FormatFactory: Output format " + name + " is already marked as supporting parallel formatting", ErrorCodes::LOGICAL_ERROR); target = true; } void FormatFactory::markFormatSupportsSubsetOfColumns(const String & name) { auto & target = dict[name].supports_subset_of_columns; if (target) throw Exception("FormatFactory: Format " + name + " is already marked as supporting subset of columns", ErrorCodes::LOGICAL_ERROR); target = true; } bool FormatFactory::checkIfFormatSupportsSubsetOfColumns(const String & name) const { const auto & target = getCreators(name); return target.supports_subset_of_columns; } void FormatFactory::registerAdditionalInfoForSchemaCacheGetter( const String & name, AdditionalInfoForSchemaCacheGetter additional_info_for_schema_cache_getter) { auto & target = dict[name].additional_info_for_schema_cache_getter; if (target) throw Exception("FormatFactory: additional info for schema cache getter " + name + " is already registered", ErrorCodes::LOGICAL_ERROR); target = std::move(additional_info_for_schema_cache_getter); } String FormatFactory::getAdditionalInfoForSchemaCache(const String & name, ContextPtr context, const std::optional & format_settings_) { const auto & additional_info_getter = getCreators(name).additional_info_for_schema_cache_getter; if (!additional_info_getter) return ""; auto format_settings = format_settings_ ? *format_settings_ : getFormatSettings(context); return additional_info_getter(format_settings); } bool FormatFactory::isInputFormat(const String & name) const { auto it = dict.find(name); return it != dict.end() && it->second.input_creator; } bool FormatFactory::isOutputFormat(const String & name) const { auto it = dict.find(name); return it != dict.end() && it->second.output_creator; } bool FormatFactory::checkIfFormatHasSchemaReader(const String & name) const { const auto & target = getCreators(name); return bool(target.schema_reader_creator); } bool FormatFactory::checkIfFormatHasExternalSchemaReader(const String & name) const { const auto & target = getCreators(name); return bool(target.external_schema_reader_creator); } bool FormatFactory::checkIfFormatHasAnySchemaReader(const String & name) const { return checkIfFormatHasSchemaReader(name) || checkIfFormatHasExternalSchemaReader(name); } void FormatFactory::checkFormatName(const String & name) const { auto it = dict.find(name); if (it == dict.end()) throw Exception("Unknown format " + name, ErrorCodes::UNKNOWN_FORMAT); } FormatFactory & FormatFactory::instance() { static FormatFactory ret; return ret; } }