diff --git a/mymysql/batchwriter.go b/mymysql/batchwriter.go
index aaa774b..5b0c59b 100644
--- a/mymysql/batchwriter.go
+++ b/mymysql/batchwriter.go
@@ -36,13 +36,13 @@ type (
 )
 
 type BatchWriterConfig struct {
-	channelBuffer   int
-	batchSize       int
-	batchInterval   time.Duration
-	jobNum          int
-	asyncWorkerNum  int
-	duplicateUpdate *clause.OnConflict
-	debug           bool
+	channelBuffer  int
+	batchSize      int
+	batchInterval  time.Duration
+	jobNum         int
+	asyncWorkerNum int
+	clauseExpr     []clause.Expression
+	debug          bool
 }
 
 type BatchWriter[T any] struct {
@@ -93,9 +93,9 @@ func WithAsyncWorkerNum(v int) BatchWriterOpt {
 	}
 }
 
-func WithDuplicateUpdate(v *clause.OnConflict) BatchWriterOpt {
+func WithClause(v ...clause.Expression) BatchWriterOpt {
 	return func(c *BatchWriterConfig) {
-		c.duplicateUpdate = v
+		c.clauseExpr = v
 	}
 }
 
@@ -269,8 +269,8 @@ func (bw *BatchWriter[T]) asyncWriteToDb(jobIndex int, copyDataList []T) {
 
 	query := bw.db.Table(bw.tableName)
 
-	if bw.config.duplicateUpdate != nil {
-		query.Clauses(bw.config.duplicateUpdate)
+	if len(bw.config.clauseExpr) > 0 {
+		query.Clauses(bw.config.clauseExpr...)
 	}
 
 	err := query.Create(copyDataList).Error