diff --git a/src/share/ob_autoincrement_service.cpp b/src/share/ob_autoincrement_service.cpp
index 03e7aff373..0dde0527ec 100644
--- a/src/share/ob_autoincrement_service.cpp
+++ b/src/share/ob_autoincrement_service.cpp
@@ -1447,7 +1447,11 @@ int ObAutoincrementService::calc_prev_value(const uint64_t max_value,
   if (max_value <= offset) {
     prev_value = max_value;
   } else {
-    prev_value = ((max_value - offset) / increment) * increment + offset;
+    if (0 == increment) {
+      ret = OB_ERR_UNEXPECTED;
+    } else {
+      prev_value = ((max_value - offset) / increment) * increment + offset;
+    }
   }
   LOG_INFO("out of range for column. calc prev value",
            K(prev_value), K(max_value), K(offset), K(increment));
diff --git a/src/sql/engine/cmd/ob_load_data_impl.cpp b/src/sql/engine/cmd/ob_load_data_impl.cpp
index a904007657..ddfd720283 100644
--- a/src/sql/engine/cmd/ob_load_data_impl.cpp
+++ b/src/sql/engine/cmd/ob_load_data_impl.cpp
@@ -1063,7 +1063,8 @@ int ObLoadDataSPImpl::exec_shuffle(int64_t task_id, ObShuffleTaskHandle *handle)
         } else if (OB_FAIL(handle->generator.gen_insert_values(insert_values, str_buf))) {
           LOG_WARN("fail to generate insert values", K(ret));
         } else if (nullptr == handle->calc_tablet_id_expr) {
-          tablet_id = handle->datafrag_mgr.get_tablet_ids().at(0);
+          int64_t idx = task_id % handle->datafrag_mgr.get_tablet_ids().count();
+          tablet_id = handle->datafrag_mgr.get_tablet_ids().at(idx);
         } else {
           for (int i = 0; i < handle->parser.get_fields_per_line().count(); ++i) {
             ObCSVGeneralParser::FieldValue &str_v = handle->parser.get_fields_per_line().at(i);
@@ -2568,6 +2569,14 @@ int ObLoadDataSPImpl::ToolBox::build_calc_partid_expr(ObExecContext &ctx,
       }
     }
 
+    if (OB_SUCC(ret)) {
+      bool part_key_has_autoinc = false;
+      OZ (insert_stmt->part_key_has_auto_inc(part_key_has_autoinc));
+      if (part_key_has_autoinc) {
+        calc_tablet_id_expr = NULL;
+      }
+    }
+
 
     LOG_DEBUG("LOAD DATA check insert info",
               K(column_convert_exprs), K(column_exprs), KPC(calc_partid_expr),