- 修复 ISelect Sum/First 子查询时，若子查询实体类与主查询一样时，导致的 bug；

Author: 28810

FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs

@@ -884,12 +884,12 @@ public void Sum()
             var subquery = select.ToSql(a => new
             {
                 all = a,
-                count = select.Sum(b => b.Id)
+                count = (long)select.Sum(b => b.Id)
             });
             var subqueryList = select.ToList(a => new
             {
                 all = a,
-                count = select.Sum(b => b.Id)
+                count = (long)select.Sum(b => b.Id)
             });
         }
         [Fact]

FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs

@@ -874,12 +874,12 @@ public void Sum()
             var subquery = select.ToSql(a => new
             {
                 all = a,
-                count = select.Sum(b => b.Id)
+                count = (long)select.Sum(b => b.Id)
             });
             var subqueryList = select.ToList(a => new
             {
                 all = a,
-                count = select.Sum(b => b.Id)
+                count = (long)select.Sum(b => b.Id)
             });
         }
         [Fact]

FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs

@@ -832,12 +832,12 @@ public void Sum()
             var subquery = select.ToSql(a => new
             {
                 all = a,
-                count = select.Sum(b => b.Id)
+                count = (long)select.Sum(b => b.Id)
             });
             var subqueryList = select.ToList(a => new
             {
                 all = a,
-                count = select.Sum(b => b.Id)
+                count = (long)select.Sum(b => b.Id)
             });
         }
         [Fact]

FreeSql/Internal/CommonExpression.cs

@@ -817,12 +817,18 @@ public string ExpressionLambdaToSql(Expression exp, ExpTSC tsc)
                                         case "Min":
                                         case "Max":
                                         case "Avg":
-                                            var sqlSum = fsqlType.GetMethod("ToSql", new Type[] { typeof(string) })?.Invoke(fsql, new object[] { $"{exp3.Method.Name.ToLower()}({ExpressionLambdaToSql(exp3.Arguments.FirstOrDefault(), tsc)})" })?.ToString();
+                                            var tscClone1 = tsc.CloneDisableDiyParse();
+                                            tscClone1.isDisableDiyParse = false;
+                                            tscClone1._tables = fsqltables;
+                                            var sqlSum = fsqlType.GetMethod("ToSql", new Type[] { typeof(string) })?.Invoke(fsql, new object[] { $"{exp3.Method.Name.ToLower()}({ExpressionLambdaToSql(exp3.Arguments.FirstOrDefault(), tscClone1)})" })?.ToString();
                                             if (string.IsNullOrEmpty(sqlSum) == false)
                                                 return $"({sqlSum.Replace("\r\n", "\r\n\t")})";
                                             break;
                                         case "First":
-                                            var sqlFirst = fsqlType.GetMethod("ToSql", new Type[] { typeof(string) })?.Invoke(fsql, new object[] { ExpressionLambdaToSql(exp3.Arguments.FirstOrDefault(), tsc) })?.ToString();
+                                            var tscClone2 = tsc.CloneDisableDiyParse();
+                                            tscClone2.isDisableDiyParse = false;
+                                            tscClone2._tables = fsqltables;
+                                            var sqlFirst = fsqlType.GetMethod("ToSql", new Type[] { typeof(string) })?.Invoke(fsql, new object[] { ExpressionLambdaToSql(exp3.Arguments.FirstOrDefault(), tscClone2) })?.ToString();
                                             if (string.IsNullOrEmpty(sqlFirst) == false)
                                                 return $"({sqlFirst.Replace("\r\n", "\r\n\t")})";
                                             break;