presto-main/src/main/java/io/prestosql/type/DecimalCasts.java/DecimalCasts/longDecimalToVarchar
class DecimalCasts:    @UsedByGeneratedCode
    public static Slice longDecimalToVarchar(Slice decimal, long precision, long scale, BigInteger tenToScale)
    {
        return utf8Slice(Decimals.toString(decimal, DecimalConversions.intScale(scale)));
    }