Add demo

Src/Asp.NetCore2/SqliteTest/UserTestCases/Main.cs

@@ -32,6 +32,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            Unitadsfadfsy23131.Init();
             Unitfasdfasysfs.Init();
             UnitOneToManyNsdfafa.Init();
             Unitasdfays.Init();

Src/Asp.NetCore2/SqliteTest/UserTestCases/Unitadsfadfsy23131.cs

@@ -0,0 +1,40 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    internal class Unitadsfadfsy23131
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+            SugarParameter [] ps = null;
+            db.Aop.OnLogExecuting = (sql, p) =>
+            {
+
+                Console.WriteLine(UtilMethods.GetNativeSql(sql, p));
+                ps = p;
+            };
+            db.CodeFirst.InitTables<Unitdafadfa>();
+            db.Storageable(new Unitdafadfa() {  no2="", no1="",xx=""})
+                .WhereColumns(it => new { it.no1, it.no2 })
+                .ExecuteCommand();
+            if (ps.Select(it => it.DbType+"").Distinct().Count() != 3) 
+            {
+                throw new Exception("unit error");
+            }
+        }
+        public class Unitdafadfa 
+        {
+            [SqlSugar.SugarColumn(SqlParameterDbType =System.Data.DbType.AnsiStringFixedLength)]
+            public string no1 { get; set; }
+            [SqlSugar.SugarColumn(SqlParameterDbType = System.Data.DbType.StringFixedLength)]
+            public string no2 { get; set; }
+            public string xx { get; set; }
+        }
+    }
+}