Added AfterData method call to PostgresqlProvider ExecuteReturnIdentity methods.

OnDiffLogEvent doesn't fire if AfterData method is not called.
IsPrimaryKey property added to DiffLogColumnInfo in order to keep track of audit entity identifier.

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs

@@ -520,10 +520,13 @@ namespace SqlSugar
                     item.Columns = new List<DiffLogColumnInfo>();
                     foreach (DataColumn col in dt.Columns)
                     {
+                        var sugarColumn = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).First(it =>
+                            it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase));
                         DiffLogColumnInfo addItem = new DiffLogColumnInfo();
                         addItem.Value = row[col.ColumnName];
                         addItem.ColumnName = col.ColumnName;
-                        addItem.ColumnDescription = this.EntityInfo.Columns.Where(it=>it.DbColumnName!=null).First(it => it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase)).ColumnDescription;
+                        addItem.IsPrimaryKey = sugarColumn.IsPrimarykey;
+                        addItem.ColumnDescription = sugarColumn.ColumnDescription;
                         item.Columns.Add(addItem);
                     }
                     result.Add(item);

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs

@@ -809,11 +809,13 @@ namespace SqlSugar
                 item.Columns = new List<DiffLogColumnInfo>();
                 foreach (DataColumn col in dt2.Columns)
                 {
-
+                    var sugarColumn = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).FirstOrDefault(it =>
+                        it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase));
                     DiffLogColumnInfo addItem = new DiffLogColumnInfo();
                     addItem.Value = row[col.ColumnName];
                     addItem.ColumnName = col.ColumnName;
-                    addItem.ColumnDescription = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).FirstOrDefault(it => it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase))?.ColumnDescription;
+                    addItem.IsPrimaryKey = sugarColumn?.IsPrimarykey ?? false;
+                    addItem.ColumnDescription = sugarColumn?.ColumnDescription;
                     item.Columns.Add(addItem);
                 }
                 result.Add(item);
@@ -830,7 +832,16 @@ namespace SqlSugar
             if (identity != null && identity > 0 && GetIdentityKeys().HasValue())
             {
                 var fieldName = GetIdentityKeys().Last();
-                cons.Add(new ConditionalModel() { ConditionalType = ConditionalType.Equal, FieldName = fieldName, FieldValue = identity.ToString() });
+
+                if (this.Context.CurrentConnectionConfig.DbType == DbType.PostgreSQL)
+                {
+                    var fieldObjectType = this.EntityInfo.Columns.FirstOrDefault(x => x.DbColumnName == fieldName)
+                        .PropertyInfo.PropertyType;
+                    cons.Add(new ConditionalModel() { ConditionalType = ConditionalType.Equal, FieldName = fieldName, FieldValue = identity.ToString(), 
+                        FieldValueConvertFunc = it => UtilMethods.ChangeType2(it, fieldObjectType) });
+                }
+                else
+                    cons.Add(new ConditionalModel() { ConditionalType = ConditionalType.Equal, FieldName = fieldName, FieldValue = identity.ToString() });
             }
             else
             {
@@ -864,10 +875,13 @@ namespace SqlSugar
                     item.Columns = new List<DiffLogColumnInfo>();
                     foreach (DataColumn col in dt.Columns)
                     {
+                        var sugarColumn = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).First(it =>
+                            it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase));
                         DiffLogColumnInfo addItem = new DiffLogColumnInfo();
                         addItem.Value = row[col.ColumnName];
                         addItem.ColumnName = col.ColumnName;
-                        addItem.ColumnDescription = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).First(it => it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase)).ColumnDescription;
+                        addItem.IsPrimaryKey = sugarColumn.IsPrimarykey;
+                        addItem.ColumnDescription = sugarColumn.ColumnDescription;
                         item.Columns.Add(addItem);
                     }
                     result.Add(item);
@@ -883,7 +897,8 @@ namespace SqlSugar
                 {
                     ColumnDescription = it.ColumnDescription,
                     ColumnName = it.DbColumnName,
-                    Value = it.PropertyInfo.GetValue(this.InsertObjs.Last(), null)
+                    Value = it.PropertyInfo.GetValue(this.InsertObjs.Last(), null),
+                    IsPrimaryKey = it.IsPrimarykey
                 }).ToList();
                 return new List<DiffLogTableInfo>() { diffTable };
             }

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -840,10 +840,13 @@ namespace SqlSugar
                     item.Columns = new List<DiffLogColumnInfo>();
                     foreach (DataColumn col in dt.Columns)
                     {
+                        var sugarColumn = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).First(it =>
+                            it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase));
                         DiffLogColumnInfo addItem = new DiffLogColumnInfo();
                         addItem.Value = row[col.ColumnName];
                         addItem.ColumnName = col.ColumnName;
-                        addItem.ColumnDescription = this.EntityInfo.Columns.Where(it => it.DbColumnName != null).First(it => it.DbColumnName.Equals(col.ColumnName, StringComparison.CurrentCultureIgnoreCase)).ColumnDescription;
+                        addItem.IsPrimaryKey = sugarColumn.IsPrimarykey;
+                        addItem.ColumnDescription = sugarColumn.ColumnDescription;
                         item.Columns.Add(addItem);
                     }
                     result.Add(item);

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Entities/DiffLogModel.cs

@@ -21,10 +21,11 @@ namespace SqlSugar
         public string TableDescription { get; set; }
         public List<DiffLogColumnInfo> Columns { get; set; }
     }
-    public class DiffLogColumnInfo {
-
+    public class DiffLogColumnInfo 
+    {
         public string ColumnName { get; set; }
         public string ColumnDescription { get; set; }
         public object Value { get; set; }
+        public bool IsPrimaryKey { get; set; }
     }
 }

Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/PostgreSQL/Insertable/PostgreSQLInserttable.cs

@@ -16,6 +16,7 @@ namespace SqlSugar
             string sql = InsertBuilder.ToSqlString().Replace("$PrimaryKey",this.SqlBuilder.GetTranslationColumnName(GetIdentityKeys().FirstOrDefault()));
             RestoreMapping();
             var result = Ado.GetScalar(sql, InsertBuilder.Parameters == null ? null : InsertBuilder.Parameters.ToArray()).ObjToInt();
+            After(sql, result);
             return result;
         }
         public override async Task<int> ExecuteReturnIdentityAsync()
@@ -26,6 +27,7 @@ namespace SqlSugar
             RestoreMapping();
             var obj = await Ado.GetScalarAsync(sql, InsertBuilder.Parameters == null ? null : InsertBuilder.Parameters.ToArray());
             var result = obj.ObjToInt();
+            After(sql, result);
             return result;
         }
         public override KeyValuePair<string, List<SugarParameter>> ToSql()
@@ -41,6 +43,7 @@ namespace SqlSugar
             string sql = InsertBuilder.ToSqlString().Replace("$PrimaryKey", this.SqlBuilder.GetTranslationColumnName(GetIdentityKeys().FirstOrDefault()));
             RestoreMapping();
             var result = Convert.ToInt64(Ado.GetScalar(sql, InsertBuilder.Parameters == null ? null : InsertBuilder.Parameters.ToArray()) ?? "0");
+            After(sql, result);
             return result;
         }
         public override async Task<long> ExecuteReturnBigIdentityAsync()
@@ -50,6 +53,7 @@ namespace SqlSugar
             string sql = InsertBuilder.ToSqlString().Replace("$PrimaryKey", this.SqlBuilder.GetTranslationColumnName(GetIdentityKeys().FirstOrDefault()));
             RestoreMapping();
             var result = Convert.ToInt64(await Ado.GetScalarAsync(sql, InsertBuilder.Parameters == null ? null : InsertBuilder.Parameters.ToArray()) ?? "0");
+            After(sql, result);
             return result;
         }