If they are defined, they can override table-level settings.
M(UInt64, output_format_pretty_max_column_pad_width, 250, "Maximum width to pad all values in a column in Pretty formats.", 0) \
    M(UInt64, output_format_pretty_max_value_width, 10000, "Maximum width of value to display in Pretty formats. If greater - it will be cut.", 0) \
    M(Bool, output_format_pretty_color, true, "Use ANSI escape sequences to paint colors in Pretty formats", 0) \
    M(String, output_format_pretty_grid_charset, "UTF-8", "Charset for printing grid borders. Available charsets: ASCII, UTF-8 (default one).", 0) \
    M(UInt64, output_format_parquet_row_group_size, 1000000, "Row group size in rows.", 0) \
    M(String, output_format_avro_codec, "", "Compression codec used for output. Possible values: 'null', 'deflate', 'snappy'.", 0) \
    M(UInt64, output_format_avro_sync_interval, 16 * 1024, "Sync interval in bytes.", 0) \
    M(String, output_format_avro_string_column_pattern, "", "For Avro format: regexp of String columns to select as AVRO string.", 0) \
    M(UInt64, output_format_avro_rows_in_file, 1, "Max rows in a file (if permitted by storage)", 0) \
    M(Bool, output_format_tsv_crlf_end_of_line, false, "If it is set true, end of line in TSV format will be \\r\\n instead of \\n.", 0) \
    M(String, format_csv_null_representation, "\\N", "Custom NULL representation in CSV format", 0) \
    M(String, format_tsv_null_representation, "\\N", "Custom NULL representation in TSV format", 0) \
    M(Bool, output_format_decimal_trailing_zeros, false, "Output trailing zeros when printing Decimal values. E.g. 1.230000 instead of 1.23.", 0) \
    \
    M(UInt64, input_format_allow_errors_num, 0, "Maximum absolute amount of errors while reading text formats (like CSV, TSV). In case of error, if at least absolute or relative amount of errors is lower than corresponding value, will skip until next line and continue.", 0) \
    M(Float, input_format_allow_errors_ratio, 0, "Maximum relative amount of errors while reading text formats (like CSV, TSV). In case of error, if at least absolute or relative amount of errors is lower than corresponding value, will skip until next line and continue.", 0) \
    \
    M(String, format_schema, "", "Schema identifier (used by schema-based formats)", 0) \
    M(String, format_template_resultset, "", "Path to file which contains format string for result set (for Template format)", 0) \
    M(String, format_template_row, "", "Path to file which contains format string for rows (for Template format)", 0) \
    M(String, format_template_rows_between_delimiter, "\n", "Delimiter between rows (for Template format)", 0) \
    \
    M(EscapingRule, format_custom_escaping_rule, "Escaped", "Field escaping rule (for CustomSeparated format)", 0) \
    M(String, format_custom_field_delimiter, "\t", "Delimiter between fields (for CustomSeparated format)", 0) \
    M(String, format_custom_row_before_delimiter, "", "Delimiter before field of the first column (for CustomSeparated format)", 0) \
    M(String, format_custom_row_after_delimiter, "\n", "Delimiter after field of the last column (for CustomSeparated format)", 0) \
    M(String, format_custom_row_between_delimiter, "", "Delimiter between rows (for CustomSeparated format)", 0) \
    M(String, format_custom_result_before_delimiter, "", "Prefix before result set (for CustomSeparated format)", 0) \
    M(String, format_custom_result_after_delimiter, "", "Suffix after result set (for CustomSeparated format)", 0) \
    \