fn default_field_name()

in crates/core/src/avro_to_arrow/schema.rs [157:227]

• 71 lines of code
• 2 McCabe index (conditional complexity)

fn default_field_name(dt: &DataType) -> &str {
    match dt {
        DataType::Null => "null",
        DataType::Boolean => "bit",
        DataType::Int8 => "tinyint",
        DataType::Int16 => "smallint",
        DataType::Int32 => "int",
        DataType::Int64 => "bigint",
        DataType::UInt8 => "uint1",
        DataType::UInt16 => "uint2",
        DataType::UInt32 => "uint4",
        DataType::UInt64 => "uint8",
        DataType::Float16 => "float2",
        DataType::Float32 => "float4",
        DataType::Float64 => "float8",
        DataType::Date32 => "dateday",
        DataType::Date64 => "datemilli",
        DataType::Time32(tu) | DataType::Time64(tu) => match tu {
            TimeUnit::Second => "timesec",
            TimeUnit::Millisecond => "timemilli",
            TimeUnit::Microsecond => "timemicro",
            TimeUnit::Nanosecond => "timenano",
        },
        DataType::Timestamp(tu, tz) => {
            if tz.is_some() {
                match tu {
                    TimeUnit::Second => "timestampsectz",
                    TimeUnit::Millisecond => "timestampmillitz",
                    TimeUnit::Microsecond => "timestampmicrotz",
                    TimeUnit::Nanosecond => "timestampnanotz",
                }
            } else {
                match tu {
                    TimeUnit::Second => "timestampsec",
                    TimeUnit::Millisecond => "timestampmilli",
                    TimeUnit::Microsecond => "timestampmicro",
                    TimeUnit::Nanosecond => "timestampnano",
                }
            }
        }
        DataType::Duration(_) => "duration",
        DataType::Interval(unit) => match unit {
            IntervalUnit::YearMonth => "intervalyear",
            IntervalUnit::DayTime => "intervalmonth",
            IntervalUnit::MonthDayNano => "intervalmonthdaynano",
        },
        DataType::Binary => "varbinary",
        DataType::FixedSizeBinary(_) => "fixedsizebinary",
        DataType::LargeBinary => "largevarbinary",
        DataType::Utf8 => "varchar",
        DataType::LargeUtf8 => "largevarchar",
        DataType::List(_) => "list",
        DataType::FixedSizeList(_, _) => "fixed_size_list",
        DataType::LargeList(_) => "largelist",
        DataType::Struct(_) => "struct",
        DataType::Union(_, _) => "union",
        DataType::Dictionary(_, _) => "map",
        DataType::Map(_, _) => unimplemented!("Map support not implemented"),
        DataType::RunEndEncoded(_, _) => {
            unimplemented!("RunEndEncoded support not implemented")
        }
        DataType::Utf8View
        | DataType::BinaryView
        | DataType::ListView(_)
        | DataType::LargeListView(_) => {
            unimplemented!("View support not implemented")
        }
        DataType::Decimal128(_, _) => "decimal",
        DataType::Decimal256(_, _) => "decimal",
    }
}