diff --git a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
index 61dfd6e4de4d9fa1a2701c6ff9a656fa1cdafb8d..e74aff083740d8214922f13fe1e462354f2c1db6 100644
--- a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
+++ b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
@@ -43,9 +43,9 @@ int ObExprToOutfileRow::calc_result_typeN(ObExprResType &type,
 {
   //objs[0] field_str     varchar
   //objs[1] line_str      varchar
-  //objs[2] closed_cht    char
-  //objs[3] is_optional   bool
-  //objs[4] escaped_cht   char
+  //objs[2] closed_cht    char
+  //objs[3] is_optional   bool
+  //objs[4] escaped_cht   char
   //objs[5:] params
   int ret = OB_SUCCESS;
   UNUSED(type_ctx);
@@ -90,9 +90,9 @@ int ObExprToOutfileRow::cg_expr(ObExprCGCtx &, const ObRawExpr &, ObExpr &expr)
   }
   return ret;
 }
-
-int ObExprToOutfileRow::extend_buffer(ObExprOutFileInfo &out_info,
-                                      ObIAllocator &allocator)
+
+int ObExprToOutfileRow::extend_buffer(ObExprOutFileInfo &out_info,
+                                      ObIAllocator &allocator)
 {
   int ret = OB_SUCCESS;
   int64_t old_len = out_info.buf_len_;
@@ -160,9 +160,9 @@ int ObExprToOutfileRow::to_outfile_str(const ObExpr &expr, ObEvalCtx &ctx, ObDat
     LOG_WARN("evaluate parameters values failed", K(ret));
   } else {
     ObExprOutFileInfo *out_info = NULL;
-    auto rt_ctx_id = static_cast<uint64_t>(expr.expr_ctx_id_);
-    if (NULL == (out_info = static_cast<ObExprOutFileInfo *>
-                 (ctx.exec_ctx_.get_expr_op_ctx(rt_ctx_id)))) {
+    auto rt_ctx_id = static_cast<uint64_t>(expr.expr_ctx_id_);
+    if (NULL == (out_info = static_cast<ObExprOutFileInfo *>
+                 (ctx.exec_ctx_.get_expr_op_ctx(rt_ctx_id)))) {
       if (OB_FAIL(ctx.exec_ctx_.create_expr_op_ctx(rt_ctx_id, out_info))) {
         LOG_WARN("failed to create operator ctx", K(ret));
       } else if (OB_FAIL(calc_outfile_info(expr, ctx,