diff --git a/src/share/stat/ob_opt_osg_column_stat.cpp b/src/share/stat/ob_opt_osg_column_stat.cpp
index c1f6b124e1..5249f1cfc7 100644
--- a/src/share/stat/ob_opt_osg_column_stat.cpp
+++ b/src/share/stat/ob_opt_osg_column_stat.cpp
@@ -196,6 +196,9 @@ int ObOptOSGColumnStat::update_column_stat_info(const ObDatum *datum,
       LOG_WARN("fail to do hash", K(ret), K(tmp_obj));
     }
     if (OB_FAIL(ret)) {
+    } else if (OB_UNLIKELY(col_stat_->get_llc_bitmap() == NULL || col_stat_->get_llc_bitmap_size() == 0)) {
+      ret = OB_INVALID_ARGUMENT;
+      LOG_WARN("get invalid llc_bitmap", K(ret));
     } else if (OB_FAIL(ObAggregateProcessor::llc_add_value(hash_value,
                                                             col_stat_->get_llc_bitmap(),
                                                             col_stat_->get_llc_bitmap_size()))) {