Attempt

dbms/src/Core/Settings.h

@@ -338,6 +338,7 @@ struct Settings : public SettingsCollection<Settings>
     M(SettingChar, format_csv_delimiter, ',', "The character to be considered as a delimiter in CSV data. If setting with a string, a string has to have a length of 1.", 0) \
     M(SettingBool, format_csv_allow_single_quotes, 1, "If it is set to true, allow strings in single quotes.", 0) \
     M(SettingBool, format_csv_allow_double_quotes, 1, "If it is set to true, allow strings in double quotes.", 0) \
+    M(SettingBool, output_format_csv_crlf_end_of_line, false, "If it is set true, end of line will be \\r\\n instead of \\n.", 0) \
     M(SettingBool, input_format_csv_unquoted_null_literal_as_null, false, "Consider unquoted NULL literal as \\N", 0) \
     \
     M(SettingDateTimeInputFormat, date_time_input_format, FormatSettings::DateTimeInputFormat::Basic, "Method to read DateTime from text input formats. Possible values: 'basic' and 'best_effort'.", 0) \

dbms/src/Formats/FormatFactory.cpp

@@ -82,6 +82,7 @@ static FormatSettings getOutputFormatSetting(const Settings & settings, const Co
     format_settings.csv.delimiter = settings.format_csv_delimiter;
     format_settings.csv.allow_single_quotes = settings.format_csv_allow_single_quotes;
     format_settings.csv.allow_double_quotes = settings.format_csv_allow_double_quotes;
+    format_settings.csv.crlf_end_of_line = settings.output_format_csv_crlf_end_of_line;
     format_settings.pretty.max_rows = settings.output_format_pretty_max_rows;
     format_settings.pretty.max_column_pad_width = settings.output_format_pretty_max_column_pad_width;
     format_settings.pretty.color = settings.output_format_pretty_color;

dbms/src/Formats/FormatSettings.h

@@ -29,6 +29,7 @@ struct FormatSettings
         bool allow_double_quotes = true;
         bool unquoted_null_literal_as_null = false;
         bool empty_as_default = false;
+        bool crlf_end_of_line = false;
     };
 
     CSV csv;

dbms/src/Processors/Formats/Impl/CSVRowOutputFormat.cpp

@@ -54,6 +54,8 @@ void CSVRowOutputFormat::writeFieldDelimiter()
 
 void CSVRowOutputFormat::writeRowEndDelimiter()
 {
+    if (format_settings.csv.crlf_end_of_line)
+        writeChar('\r', out);
     writeChar('\n', out);
 }