Add demo

Src/Asp.NetCore2/PgSqlTest/UserTestCases/Unitdsafasyss.cs

@@ -17,6 +17,16 @@ namespace OrmTest
 
             db.QueryableByObject(typeof(Order)).AS("Order").ToList();
             db.QueryableByObject(typeof(Order)).AS("\"public\".Order").ToList();
+
+            db.CodeFirst.InitTables<Unitdfsas>();
+            db.Insertable(new Unitdfsas() { GridX = new double[] { 1 } }).ExecuteCommand();
+            var list=db.Queryable<Unitdfsas>().ToList();
+        }
+        public class Unitdfsas 
+        {
+            [SugarColumn(ColumnDataType = "double precision []", IsArray = true)]
+
+            public double[] GridX { get; set; }
         }
     }