是否有自动将 .NET 框架类型转换为 PostgreSQL 类型的类？

Question

为了编写 sql 查询，我需要能够采用 .NET 类型并获取 PostgreSQL 类型的字符串。例如，我需要从

typeof(int) --> "int"

这很棘手，因为 typeof(int) 是 System.Int32。我找到了一些表格，such as this one，但我想知道是否有一个类可以自动完成，而不必自己编写所有映射。

Answer 1

可能会起作用：

public static class DotNetTypeToPostgreSqlType
{
    public static string GetPostgreType(object o)
    {
        if (o is Int64)
        {
            return "int8";
        }
        if (o is Boolean)
        {
            return "bool";
        }
        if (o is Byte[])
        {
            return "bytea";
        }
        if (o is DateTime)
        {
            return "date";
        }
        if (o is Double)
        {
            return "float8";
        }
        if (o is Int32)
        {
            return "int4";
        }
        if (o is Decimal)
        {
            return "money";
        }
        if (o is Decimal)
        {
            return "numeric";
        }
        if (o is Single)
        {
            return "float4";
        }
        if (o is Int16)
        {
            return "int2";
        }
        if (o is String)
        {
            return "text";
        }
        if (o is DateTime)
        {
            return "time";
        }
        if (o is DateTime)
        {
            return "timetz";
        }
        if (o is DateTime)
        {
            return "timestamp";
        }
        if (o is DateTime)
        {
            return "timestamptz";
        }
        if (o is TimeSpan)
        {
            return "interval";
        }
        if (o is String)
        {
            return "varchar";
        }
        if (o is IPAddress)
        {
            return "inet";
        }
        if (o is Boolean)
        {
            return "bit";
        }
        if (o is Guid)
        {
            return "uuid";
        }
        if (o is Array)
        {
            return "array";
        }
        throw new NotImplementedException("Unknown postgresql type");
    }
}