diff --git a/session.go b/session.go
index 64e65ca4..0a0104a8 100644
--- a/session.go
+++ b/session.go
@@ -24,9 +24,12 @@ type Session struct {
 	IsAutoClose            bool
 
 	// !nashtsai! storing these beans due to yet committed tx
-	afterInsertBeans []interface{}
-	afterUpdateBeans []interface{}
-	afterDeleteBeans []interface{}
+	// afterInsertBeans []interface{}
+	// afterUpdateBeans []interface{}
+	// afterDeleteBeans []interface{}
+	afterInsertBeans map[interface{}][]func(interface{})
+	afterUpdateBeans map[interface{}][]func(interface{})
+	afterDeleteBeans map[interface{}][]func(interface{})
 	// --
 
 	beforeClosures []func(interface{})
@@ -42,9 +45,9 @@ func (session *Session) Init() {
 	session.IsAutoClose = false
 
 	// !nashtsai! is lazy init better?
-	session.afterInsertBeans = make([]interface{}, 0)
-	session.afterUpdateBeans = make([]interface{}, 0)
-	session.afterDeleteBeans = make([]interface{}, 0)
+	session.afterInsertBeans = make(map[interface{}][]func(interface{}), 0)
+	session.afterUpdateBeans = make(map[interface{}][]func(interface{}), 0)
+	session.afterDeleteBeans = make(map[interface{}][]func(interface{}), 0)
 	session.beforeClosures = make([]func(interface{}), 0)
 	session.afterClosures = make([]func(interface{}), 0)
 }
@@ -286,53 +289,53 @@ func (session *Session) Commit() error {
 		var err error
 		if err = session.Tx.Commit(); err == nil {
 			// handle processors after tx committed
-			for _, elem := range session.afterInsertBeans {
-				for _, closure := range session.afterClosures {
-					closure(elem)
+			for bean, closures := range session.afterInsertBeans {
+				for _, closure := range closures {
+					closure(bean)
 				}
 
-				if processor, ok := interface{}(elem).(AfterInsertProcessor); ok {
+				if processor, ok := interface{}(bean).(AfterInsertProcessor); ok {
 					processor.AfterInsert()
 				}
 			}
-			for _, elem := range session.afterUpdateBeans {
-				for _, closure := range session.afterClosures {
-					closure(elem)
+			for bean, closures := range session.afterUpdateBeans {
+				for _, closure := range closures {
+					closure(bean)
 				}
-				if processor, ok := interface{}(elem).(AfterUpdateProcessor); ok {
+
+				if processor, ok := interface{}(bean).(AfterUpdateProcessor); ok {
 					processor.AfterUpdate()
 				}
 			}
-			for _, elem := range session.afterDeleteBeans {
-				for _, closure := range session.afterClosures {
-					closure(elem)
+			for bean, closures := range session.afterDeleteBeans {
+				for _, closure := range closures {
+					closure(bean)
 				}
-				if processor, ok := interface{}(elem).(AfterDeleteProcessor); ok {
+
+				if processor, ok := interface{}(bean).(AfterDeleteProcessor); ok {
 					processor.AfterDelete()
 				}
 			}
-			cleanUpFunc := func(slices *[]interface{}) {
+			cleanUpFunc := func(slices *map[interface{}][]func(interface{})) {
 				if len(*slices) > 0 {
-					*slices = make([]interface{}, 0)
-				}
-			}
-			cleanUpProcessorsFunc := func(slices *[]func(interface{})) {
-				if len(*slices) > 0 {
-					*slices = make([]func(interface{}), 0)
+					*slices = make(map[interface{}][]func(interface{}), 0)
 				}
 			}
 			cleanUpFunc(&session.afterInsertBeans)
 			cleanUpFunc(&session.afterUpdateBeans)
 			cleanUpFunc(&session.afterDeleteBeans)
-
-			// !nash! should session based processors get cleanup?
-			cleanUpProcessorsFunc(&session.afterClosures)
 		}
 		return err
 	}
 	return nil
 }
 
+func cleanupProcessorsClosures(slices *[]func(interface{})) {
+	if len(*slices) > 0 {
+		*slices = make([]func(interface{}), 0)
+	}
+}
+
 func (session *Session) scanMapIntoStruct(obj interface{}, objMap map[string][]byte) error {
 	dataStruct := reflect.Indirect(reflect.ValueOf(obj))
 	if dataStruct.Kind() != reflect.Struct {
@@ -1491,6 +1494,7 @@ func (session *Session) innerInsertMulti(rowsSlicePtr interface{}) (int64, error
 		}
 		colMultiPlaces = append(colMultiPlaces, strings.Join(colPlaces, ", "))
 	}
+	cleanupProcessorsClosures(&session.beforeClosures)
 
 	statement := fmt.Sprintf("INSERT INTO %v%v%v (%v%v%v) VALUES (%v)",
 		session.Engine.QuoteStr(),
@@ -1523,15 +1527,15 @@ func (session *Session) innerInsertMulti(rowsSlicePtr interface{}) (int64, error
 			}
 		} else {
 			if hasAfterClosures {
-				session.afterInsertBeans = append(session.afterInsertBeans, elemValue)
+				session.afterInsertBeans[bean] = session.afterClosures
 			} else {
 				if _, ok := interface{}(elemValue).(AfterInsertProcessor); ok {
-					session.afterInsertBeans = append(session.afterInsertBeans, elemValue)
+					session.afterInsertBeans[bean] = nil
 				}
 			}
 		}
 	}
-
+	cleanupProcessorsClosures(&session.afterClosures)
 	return res.RowsAffected()
 }
 
@@ -1808,11 +1812,10 @@ func (session *Session) innerInsert(bean interface{}) (int64, error) {
 	for _, closure := range session.beforeClosures {
 		closure(bean)
 	}
+	cleanupProcessorsClosures(&session.beforeClosures) // cleanup after used
+
 	if processor, ok := interface{}(bean).(BeforeInsertProcessor); ok {
-		session.Engine.LogDebug(session.Statement.TableName(), " has before insert processor")
 		processor.BeforeInsert()
-	} else {
-		session.Engine.LogDebug(session.Statement.TableName(), " has no before insert processor")
 	}
 	// --
 
@@ -1840,18 +1843,18 @@ func (session *Session) innerInsert(bean interface{}) (int64, error) {
 				closure(bean)
 			}
 			if processor, ok := interface{}(bean).(AfterInsertProcessor); ok {
-				session.Engine.LogDebug(session.Statement.TableName(), " has after insert processor")
 				processor.AfterInsert()
 			}
 		} else {
 			if len(session.afterClosures) > 0 {
-				session.afterInsertBeans = append(session.afterInsertBeans, bean)
+				session.afterInsertBeans[bean] = session.afterClosures
 			} else {
 				if _, ok := interface{}(bean).(AfterInsertProcessor); ok {
-					session.afterInsertBeans = append(session.afterInsertBeans, bean)
+					session.afterInsertBeans = nil
 				}
 			}
 		}
+		cleanupProcessorsClosures(&session.afterClosures) // cleanup after used
 	}
 
 	// for postgres, many of them didn't implement lastInsertId, so we should
@@ -2142,7 +2145,7 @@ func (session *Session) Update(bean interface{}, condiBean ...interface{}) (int6
 	for _, closure := range session.beforeClosures {
 		closure(bean)
 	}
-
+	cleanupProcessorsClosures(&session.beforeClosures) // cleanup after used
 	if processor, ok := interface{}(bean).(BeforeUpdateProcessor); ok {
 		processor.BeforeUpdate()
 	}
@@ -2257,13 +2260,14 @@ func (session *Session) Update(bean interface{}, condiBean ...interface{}) (int6
 		}
 	} else {
 		if len(session.afterClosures) > 0 {
-			session.afterUpdateBeans = append(session.afterUpdateBeans, bean)
+			session.afterUpdateBeans[bean] = session.afterClosures
 		} else {
 			if _, ok := interface{}(bean).(AfterUpdateProcessor); ok {
-				session.afterUpdateBeans = append(session.afterUpdateBeans, bean)
+				session.afterUpdateBeans[bean] = nil
 			}
 		}
 	}
+	cleanupProcessorsClosures(&session.afterClosures) // cleanup after used
 	// --
 
 	return res.RowsAffected()
@@ -2335,6 +2339,7 @@ func (session *Session) Delete(bean interface{}) (int64, error) {
 	for _, closure := range session.beforeClosures {
 		closure(bean)
 	}
+	cleanupProcessorsClosures(&session.beforeClosures)
 
 	if processor, ok := interface{}(bean).(BeforeDeleteProcessor); ok {
 		processor.BeforeDelete()
@@ -2379,18 +2384,18 @@ func (session *Session) Delete(bean interface{}) (int64, error) {
 			closure(bean)
 		}
 		if processor, ok := interface{}(bean).(AfterDeleteProcessor); ok {
-			session.Engine.LogDebug(session.Statement.TableName(), " has after update processor")
 			processor.AfterDelete()
 		}
 	} else {
 		if len(session.afterClosures) > 0 {
-			session.afterDeleteBeans = append(session.afterDeleteBeans, bean)
+			session.afterDeleteBeans[bean] = session.afterClosures
 		} else {
 			if _, ok := interface{}(bean).(AfterDeleteProcessor); ok {
-				session.afterDeleteBeans = append(session.afterDeleteBeans, bean)
+				session.afterDeleteBeans = nil
 			}
 		}
 	}
+	cleanupProcessorsClosures(&session.afterClosures)
 	// --
 
 	return res.RowsAffected()