Add unit test

Src/Asp.Net/SqliteTest/SqliteTest.csproj

@@ -121,6 +121,7 @@
     <Compile Include="UnitTest\UQueryable.cs" />
     <Compile Include="UnitTest\UQueryableAsync.cs" />
     <Compile Include="UnitTest\USaveable.cs" />
+    <Compile Include="UnitTest\USelectDTO.cs" />
     <Compile Include="UnitTest\UThread.cs" />
     <Compile Include="UnitTest\UThread2.cs" />
     <Compile Include="UnitTest\UThread3.cs" />

Src/Asp.Net/SqliteTest/UnitTest/Main.cs

@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            USelectDTO.Init();
             UnitNavOneToManyDTO.Init();
             Unitadfaafsd.Init();
             UFilter2.Init();

Src/Asp.Net/SqliteTest/UnitTest/USelectDTO.cs

@@ -0,0 +1,129 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Data.SqlTypes;
+using System.Linq;
+using System.Security.Principal;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Serialization;
+
+namespace OrmTest
+{
+    internal class USelectDTO
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+            db.CodeFirst.InitTables<ProductStockFlow, ProductStock>();
+
+            //5.1.4.86 不报错
+            //5.1.4.94 报错
+
+            var flowQuery = db.Queryable<ProductStockFlow>()
+                .GroupBy(s => new { s.ProductId })
+                .Select(s => new
+                {
+                    s.ProductId,
+                    LastOutTime = SqlFunc.AggregateMax(s.CreateTime)
+                });
+
+            var data = db.Queryable<ProductStock>()
+                .LeftJoin(flowQuery, (s, f) => s.ProductId == f.ProductId)
+                .Where(s => s.StockQty > 0)
+                .Select((s, f) => new ProductStockMonitorDto() {  }, true)
+                .ToList();
+
+            var data2 = db.Queryable<ProductStock>()
+           .LeftJoin(flowQuery, (s, f) => s.ProductId == f.ProductId)
+           .Where(s => s.StockQty > 0)
+           .Select<ProductStockMonitorDto>()
+           .ToList();
+        }
+    }
+    public class ProductStockFlow
+    {
+        [SugarColumn(IsNullable = false, IsPrimaryKey = true, IsIdentity = false)]
+        public long Id { get; set; }
+
+        public long ProductId { get; set; }
+
+        /// <summary>
+        /// 产品货号
+        /// </summary>
+        public string ProductCode { get; set; }
+
+        /// <summary>
+        /// 产品名称
+        /// </summary>
+        public string ProductName { get; set; }
+
+        /// <summary>
+        /// 发生数量
+        /// </summary>
+        [SugarColumn(Length = 18, DecimalDigits = 4)]
+        public decimal SettleQty { get; set; }
+
+        /// <summary>
+        /// 发生类型
+        /// </summary>
+        public string SettleType { get; set; }
+
+        /// <summary>
+        /// 备注
+        /// </summary>
+        [SugarColumn(IsNullable = true)]
+        public string Remark { get; set; }
+
+        public DateTime CreateTime { get; set; }
+    }
+
+    public class ProductStock
+    {
+        [SugarColumn(IsNullable = false, IsPrimaryKey = true, IsIdentity = false)]
+        public long Id { get; set; }
+
+        public long ProductId { get; set; }
+
+        /// <summary>
+        /// 产品货号
+        /// </summary>
+        public string ProductCode { get; set; }
+
+        /// <summary>
+        /// 产品名称
+        /// </summary>
+        public string ProductName { get; set; }
+
+        /// <summary>
+        /// 库存数量
+        /// </summary>
+        [SugarColumn(Length = 18, DecimalDigits = 4)]
+        public decimal StockQty { get; set; }
+    }
+
+    public class ProductStockMonitorDto
+    {
+        public long ProductId { get; set; }
+
+        /// <summary>
+        /// 产品货号
+        /// </summary>
+        public string ProductCode { get; set; }
+
+        /// <summary>
+        /// 产品名称
+        /// </summary>
+        public string ProductName { get; set; }
+
+        /// <summary>
+        /// 库存数量
+        /// </summary>
+        public decimal StockQty { get; set; }
+
+        /// <summary>
+        /// 最后出库时间
+        /// </summary>
+        public DateTime? LastOutTime { get; set; }
+    }
+}