diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
index 6e4180c8..66c05d41 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
@@ -884,12 +884,12 @@ namespace FreeSql.Tests.MySqlConnector
             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]
diff --git a/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
index a6006fdb..b98117d7 100644
--- a/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
@@ -874,12 +874,12 @@ namespace FreeSql.Tests.MySql
             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]
diff --git a/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs
index 42ff5ad9..a898a01e 100644
--- a/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs
@@ -832,12 +832,12 @@ namespace FreeSql.Tests.PostgreSQL
             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]
diff --git a/FreeSql/Internal/CommonExpression.cs b/FreeSql/Internal/CommonExpression.cs
index 887c48f3..a08490a0 100644
--- a/FreeSql/Internal/CommonExpression.cs
+++ b/FreeSql/Internal/CommonExpression.cs
@@ -817,12 +817,18 @@ namespace FreeSql.Internal
                                         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;