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 923fe8cf90..24c7d29fef 100644
--- a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
+++ b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
@@ -22,9 +22,9 @@
 using namespace oceanbase::common;
 
 namespace oceanbase
-{
-namespace sql
-{
+{
+namespace sql
+{
 
 ObExprToOutfileRow::ObExprToOutfileRow(ObIAllocator &alloc)
     : ObStringExprOperator(alloc, T_OP_TO_OUTFILE_ROW, N_TO_OUTFILE_ROW, MORE_THAN_ZERO, INTERNAL_IN_MYSQL_MODE)
@@ -111,9 +111,9 @@ int ObExprToOutfileRow::extend_buffer(ObExprOutFileInfo &out_info,
 }
 
 int ObExprToOutfileRow::calc_outfile_info(const ObExpr &expr,
-                                          ObEvalCtx &ctx,
-                                          ObIAllocator &allocator,
-                                          ObExprOutFileInfo &out_info)
+                                          ObEvalCtx &ctx,
+                                          ObIAllocator &allocator,
+                                          ObExprOutFileInfo &out_info)
 {
   int ret = OB_SUCCESS;
   ObObj objs_array[PARAM_SELECT_ITEM];
@@ -139,9 +139,9 @@ int ObExprToOutfileRow::calc_outfile_info(const ObExpr &expr,
     out_info.line_ = objs_array[PARAM_LINE];
     out_info.enclose_ = objs_array[PARAM_ENCLOSED];
     out_info.escape_ = objs_array[PARAM_ESCAPED];
-    out_info.print_params_.cs_type_ = static_cast<ObCollationType>(objs_array[PARAM_CHARSET].get_int());
-  }
-
+    out_info.print_params_.cs_type_ = static_cast<ObCollationType>(objs_array[PARAM_CHARSET].get_int());
+  }
+
   OZ(extract_fisrt_wchar_from_varhcar(out_info.field_, out_info.wchar_field_));
   OZ(extract_fisrt_wchar_from_varhcar(out_info.line_, out_info.wchar_line_));
   OZ(extract_fisrt_wchar_from_varhcar(out_info.enclose_, out_info.wchar_enclose_));
diff --git a/src/sql/optimizer/ob_log_plan.cpp b/src/sql/optimizer/ob_log_plan.cpp
index 14e077abf0..3de120ec18 100644
--- a/src/sql/optimizer/ob_log_plan.cpp
+++ b/src/sql/optimizer/ob_log_plan.cpp
@@ -1280,7 +1280,7 @@ int ObLogPlan::pre_process_quals(SemiInfo* semi_info)
     } else if (expr->has_flag(CNT_ROWNUM) || expr->has_flag(CNT_RAND_FUNC)) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("unexpected expr in semi condition", K(ret), K(*expr));
-    } else if (!expr->has_flag(CNT_ONETIME)) {
+    } else if (!expr->has_flag(CNT_ONETIME) || expr->has_flag(CNT_SUB_QUERY)) {
       // do nothing
     } else if (OB_FAIL(add_subquery_filter(expr))) {
       LOG_WARN("failed to add subquery filter", K(ret));
@@ -1314,7 +1314,7 @@ int ObLogPlan::pre_process_quals(TableItem *table_item)
       if (OB_ISNULL(expr = joined_table->join_conditions_.at(i))) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("unexpected NULL", K(ret), K(expr));
-      } else if (!expr->has_flag(CNT_ONETIME)) {
+      } else if (!expr->has_flag(CNT_ONETIME) || expr->has_flag(CNT_SUB_QUERY)) {
         // do nothing
       } else if (OB_FAIL(add_subquery_filter(expr))) {
         LOG_WARN("failed to add subquery filter", K(ret));