xorm-unsigned-double-mysql.patch

--- dialects/mysql.go	2024-06-27 08:58:46.000000000 +0800
+++ dialects/mysql.go.new	2024-06-27 09:21:52.000000000 +0800
@@ -322,6 +322,9 @@ func (db *mysql) SQLType(c *schemas.Colu
 	case schemas.UnsignedFloat:
 		res = schemas.Float
 		isUnsigned = true
+	case schemas.UnsignedDouble:
+		res = schemas.Double
+		isUnsigned = true
 	default:
 		res = t
 	}
@@ -514,7 +517,10 @@ func (db *mysql) GetColumns(queryer core
 		col.Length = len1
 		col.Length2 = len2
 		if _, ok := schemas.SqlTypes[colType]; !ok {
-			return nil, nil, fmt.Errorf("unknown colType %v", colType)
+		    if !strings.HasPrefix(colType, "UNSIGNED ") {
+		        return nil, nil, fmt.Errorf("unknown colType %v", colType)
+		    }
+		    colType = colType[len("UNSIGNED "):]
 		}
 		col.SQLType = schemas.SQLType{Name: colType, DefaultLength: len1, DefaultLength2: len2}