Update

ConsoleApp2/Options/CsvOptions.cs

@@ -1,4 +1,4 @@
-namespace ConsoleApp2;
+namespace ConsoleApp2.Options;
 
 public class CsvOptions
 {

ConsoleApp2/Options/DataTransformOptions.cs

@@ -1,9 +1,21 @@
 using ConsoleApp2.Entities;
-using ConsoleApp2.Options;
 
-namespace ConsoleApp2;
+namespace ConsoleApp2.Options;
+
+public enum ColumnType
+{
+    Blob,
+    Text,
+    UnDefine,
+}
 
 public class DataTransformOptions
 {
-    public Func<DataRecord, DatabaseOptions> DatabaseFilter { get; set; }
+    public Func<DataRecord, string>? DatabaseFilter { get; set; }
+    public Dictionary<string, ColumnType> ColumnTypeConfig { get; set; } = new(); // "table.column" -> type
+
+    public ColumnType GetColumnType(string table, string column)
+    {
+        return ColumnTypeConfig.GetValueOrDefault($"{table}.{column}", ColumnType.UnDefine);
+    }
 }

ConsoleApp2/Options/DatabaseOptions.cs

@@ -1,3 +1,10 @@
 namespace ConsoleApp2.Options;
 
-public record DatabaseOptions(string Host, uint Port, string Database, string User, string Password);
+public class DatabaseOptions
+{
+    public string Host { get; set; }
+    public uint Port { get; set; }
+    public string Database { get; set; }
+    public string User { get; set; }
+    public string Password { get; set; }
+}