diff --git a/src/sql/engine/basic/ob_pushdown_filter.cpp b/src/sql/engine/basic/ob_pushdown_filter.cpp
index eed940adf..e92b5c709 100644
--- a/src/sql/engine/basic/ob_pushdown_filter.cpp
+++ b/src/sql/engine/basic/ob_pushdown_filter.cpp
@@ -163,12 +163,18 @@ int ObPushdownFilterConstructor::is_white_mode(const ObRawExpr* raw_expr, bool &
   } else if (ObRawExpr::EXPR_COLUMN_REF != child->get_expr_class()) {
     need_check = false;
   } else {
+    const ObObjMeta &col_meta = child->get_result_meta();
     for (int64_t i = 1; OB_SUCC(ret) && need_check && i < raw_expr->get_param_count(); i++) {
       if (OB_ISNULL(child = raw_expr->get_param_expr(i))) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("Unexpected null child expr", K(ret), K(i));
       } else {
         need_check = child->is_const_expr();
+        if (need_check) {
+          const ObObjMeta &param_meta = child->get_result_meta();
+          need_check = param_meta.is_null() ||
+            (col_meta.get_type() == param_meta.get_type() && col_meta.get_collation_type() == param_meta.get_collation_type());
+        }
       }
     }
   }
diff --git a/src/storage/ob_col_map.cpp b/src/storage/ob_col_map.cpp
index b9c10c412..01be938e9 100644
--- a/src/storage/ob_col_map.cpp
+++ b/src/storage/ob_col_map.cpp
@@ -32,7 +32,7 @@ int ObColMap::init(const int64_t col_count)
     STORAGE_LOG(WARN, "ObColMap init twice", K(ret));
   } else if (count <= FINAL_LEVEL_MAX_COL_NUM) {
     if (OB_UNLIKELY(count > FIRST_LEVEL_MAX_COL_NUM)) {
-      if (NULL == (ptr = ob_malloc(sizeof(ColMapFinal)))) {
+      if (NULL == (ptr = ob_malloc(sizeof(ColMapFinal), ObModIds::OB_COL_MAP))) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
         STORAGE_LOG(ERROR, "fail to allocate memory for column_ids map", K(ret));
       } else {