diff --git a/src/sql/engine/ob_physical_plan_ctx.cpp b/src/sql/engine/ob_physical_plan_ctx.cpp
index aedbcb01f..f53bba9bd 100644
--- a/src/sql/engine/ob_physical_plan_ctx.cpp
+++ b/src/sql/engine/ob_physical_plan_ctx.cpp
@@ -35,6 +35,7 @@ DEF_TO_STRING(ObRemoteSqlInfo)
   J_OBJ_START();
   J_KV(K_(use_ps),
        K_(is_batched_stmt),
+       K_(is_original_ps_mode),
        K_(ps_param_cnt),
        K_(remote_sql));
   J_COMMA();
diff --git a/src/sql/engine/ob_physical_plan_ctx.h b/src/sql/engine/ob_physical_plan_ctx.h
index 037068b41..08fb4cda0 100644
--- a/src/sql/engine/ob_physical_plan_ctx.h
+++ b/src/sql/engine/ob_physical_plan_ctx.h
@@ -53,6 +53,7 @@ struct ObRemoteSqlInfo
   ObRemoteSqlInfo() :
     use_ps_(false),
     is_batched_stmt_(false),
+    is_original_ps_mode_(false),
     ps_param_cnt_(0),
     remote_sql_(),
     ps_params_(nullptr)
@@ -63,6 +64,7 @@ struct ObRemoteSqlInfo
 
   bool use_ps_;
   bool is_batched_stmt_;
+  bool is_original_ps_mode_;
   int32_t ps_param_cnt_;
   common::ObString remote_sql_;
   ParamStore *ps_params_;
diff --git a/src/sql/executor/ob_task.cpp b/src/sql/executor/ob_task.cpp
index 3be554636..158e069a9 100644
--- a/src/sql/executor/ob_task.cpp
+++ b/src/sql/executor/ob_task.cpp
@@ -331,6 +331,7 @@ OB_DEF_SERIALIZE(ObRemoteTask)
   for (int64_t i = 0; OB_SUCC(ret) && i < param_meta_count; ++i) {
     OB_UNIS_ENCODE(ps_params->at(i).get_param_flag());
   }
+  OB_UNIS_ENCODE(remote_sql_info_->is_original_ps_mode_);
   return ret;
 }
 
@@ -367,6 +368,7 @@ OB_DEF_SERIALIZE_SIZE(ObRemoteTask)
     for (int64_t i = 0; i < param_meta_count; ++i) {
       OB_UNIS_ADD_LEN(ps_params->at(i).get_param_flag());
     }
+    OB_UNIS_ADD_LEN(remote_sql_info_->is_original_ps_mode_);
   }
   return len;
 }
@@ -429,6 +431,7 @@ OB_DEF_DESERIALIZE(ObRemoteTask)
         }
       }
     }
+    OB_UNIS_DECODE(remote_sql_info_->is_original_ps_mode_);
   }
   return ret;
 }
diff --git a/src/sql/ob_sql.cpp b/src/sql/ob_sql.cpp
index d1edc6619..b8380739e 100644
--- a/src/sql/ob_sql.cpp
+++ b/src/sql/ob_sql.cpp
@@ -1685,6 +1685,7 @@ int ObSql::handle_remote_query(const ObRemoteSqlInfo &remote_sql_info,
       pc_ctx->fp_result_.pc_key_.key_id_ = 0;
       pc_ctx->fp_result_.pc_key_.name_ = trimed_stmt;
       pc_ctx->normal_parse_const_cnt_ = remote_sql_info.ps_params_->count();
+      pc_ctx->is_original_ps_mode_ = remote_sql_info.is_original_ps_mode_;
       pc_ctx->set_is_ps_execute_stage();
       if (OB_FAIL(construct_param_store(*remote_sql_info.ps_params_, param_store))) {
         LOG_WARN("construct param store failed", K(ret));
@@ -2044,7 +2045,13 @@ int ObSql::generate_stmt(ParseResult &parse_result,
     resolver_ctx.is_ddl_from_primary_ = context.is_ddl_from_primary_;
     resolver_ctx.is_cursor_ = context.is_cursor_;
     resolver_ctx.is_batch_stmt_ = context.multi_stmt_item_.is_batched_multi_stmt();
-    resolver_ctx.is_by_ordinal_ = parse_result.question_mark_ctx_.by_ordinal_;
+    if (NULL != pc_ctx && pc_ctx->is_remote_executor_) {
+      resolver_ctx.need_check_col_dup_
+        = !(context.is_prepare_protocol_ && parse_result.question_mark_ctx_.by_ordinal_ && pc_ctx->is_original_ps_mode_);
+    } else {
+      resolver_ctx.need_check_col_dup_
+        = !(context.is_prepare_protocol_ && parse_result.question_mark_ctx_.by_ordinal_);
+    }
     resolver_ctx.external_param_info_.by_name_
         = parse_result.question_mark_ctx_.by_name_ || NULL != context.secondary_namespace_; //static sql in PL must be by name
     resolver_ctx.outline_parse_result_ = outline_parse_result;
@@ -3577,6 +3584,7 @@ int ObSql::after_get_plan(ObPlanCacheCtx &pc_ctx,
             param_store.pop_back();
           }
           pctx->get_remote_sql_info().use_ps_ = true;
+          pctx->get_remote_sql_info().is_original_ps_mode_ = true;
           //从ps sql info中取出要执行的sql
           pctx->get_remote_sql_info().remote_sql_ = pc_ctx.sql_ctx_.cur_sql_;
           pctx->get_remote_sql_info().ps_params_ = &param_store;
diff --git a/src/sql/plan_cache/ob_plan_cache_struct.h b/src/sql/plan_cache/ob_plan_cache_struct.h
index 082bec375..a7ae8c603 100644
--- a/src/sql/plan_cache/ob_plan_cache_struct.h
+++ b/src/sql/plan_cache/ob_plan_cache_struct.h
@@ -293,6 +293,7 @@ struct ObPlanCacheCtx : public ObILibCacheCtx
       fixed_param_idx_(allocator),
       need_add_obj_stat_(true),
       is_inner_sql_(false),
+      is_original_ps_mode_(false),
       ab_params_(NULL)
   {
     fp_result_.pc_key_.is_ps_mode_ = is_ps_mode_;
@@ -351,7 +352,8 @@ struct ObPlanCacheCtx : public ObILibCacheCtx
     K(ps_need_parameterized_),
     K(fixed_param_idx_),
     K(need_add_obj_stat_),
-    K(is_inner_sql_)
+    K(is_inner_sql_),
+    K(is_original_ps_mode_)
     );
   bool is_ps_mode_; //control use which variables to do match
 
@@ -398,6 +400,7 @@ struct ObPlanCacheCtx : public ObILibCacheCtx
   common::ObFixedArray<int64_t, common::ObIAllocator> fixed_param_idx_;
   bool need_add_obj_stat_;
   bool is_inner_sql_;
+  bool is_original_ps_mode_;
   ParamStore *ab_params_;  // arraybinding batch parameters,
 };
 
diff --git a/src/sql/resolver/dml/ob_select_resolver.cpp b/src/sql/resolver/dml/ob_select_resolver.cpp
index 4434b2325..995d83f51 100644
--- a/src/sql/resolver/dml/ob_select_resolver.cpp
+++ b/src/sql/resolver/dml/ob_select_resolver.cpp
@@ -2373,7 +2373,7 @@ int ObSelectResolver::is_need_check_col_dup(const ObRawExpr *expr, bool &need_ch
   if (OB_ISNULL(expr)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("is null", K(ret));
-  } else if (!params_.is_prepare_protocol_ || !params_.is_by_ordinal_) {
+  } else if (params_.need_check_col_dup_) {
     need_check = true;
   } else if (T_QUESTIONMARK == expr->get_expr_type()) {
     need_check = false;
diff --git a/src/sql/resolver/ob_resolver_define.h b/src/sql/resolver/ob_resolver_define.h
index 74f0b70b7..ff9ab2183 100644
--- a/src/sql/resolver/ob_resolver_define.h
+++ b/src/sql/resolver/ob_resolver_define.h
@@ -341,7 +341,7 @@ struct ObResolverParams
        hidden_column_scope_(T_NONE_SCOPE),
        outline_parse_result_(NULL),
        is_execute_call_stmt_(false),
-       is_by_ordinal_(false)
+       need_check_col_dup_(true)
   {}
   bool is_force_trace_log() { return force_trace_log_; }
 
@@ -404,7 +404,7 @@ public:
   ObStmtScope hidden_column_scope_; // record scope for first hidden column which need check hidden_column_visable in opt_param hint
   ParseResult *outline_parse_result_;
   bool is_execute_call_stmt_;
-  bool is_by_ordinal_;
+  bool need_check_col_dup_;
 };
 } // end namespace sql
 } // end namespace oceanbase