diff --git a/src/sql/resolver/expr/ob_raw_expr_info_extractor.cpp b/src/sql/resolver/expr/ob_raw_expr_info_extractor.cpp
index ec8e4948d..fb5fd29a8 100644
--- a/src/sql/resolver/expr/ob_raw_expr_info_extractor.cpp
+++ b/src/sql/resolver/expr/ob_raw_expr_info_extractor.cpp
@@ -288,10 +288,6 @@ int ObRawExprInfoExtractor::visit(ObOpRawExpr &expr)
       if (OB_FAIL(expr.add_flag(IS_IN))) {
         LOG_WARN("failed to add flag IS_IN", K(ret));
       }
-    } else if (expr.get_expr_type() == T_OP_OR) {
-      if (OB_FAIL(expr.add_flag(IS_OR))) {
-        LOG_WARN("failed to add flag IS_OR", K(ret));
-      }
     } else if (expr.get_expr_type() == T_OP_ASSIGN) {
       if (OB_FAIL(expr.add_flag(IS_ASSIGN_EXPR))) {
         LOG_WARN("failed to add flag IS_ASSIGN_EXPR", K(ret));
@@ -319,6 +315,11 @@ int ObRawExprInfoExtractor::visit(ObOpRawExpr &expr)
       }
     } else {}
   }
+  if (OB_SUCC(ret) && expr.get_expr_type() == T_OP_OR) {
+    if (OB_FAIL(expr.add_flag(IS_OR))) {
+      LOG_WARN("failed to add flag IS_OR", K(ret));
+    }
+  }
   if (OB_SUCC(ret) && OB_FAIL(visit_subquery_node(expr))) {
     LOG_WARN("visit subquery node failed", K(ret));
   }
diff --git a/unittest/sql/resolver/expr/test_raw_expr_canonicalizer.result b/unittest/sql/resolver/expr/test_raw_expr_canonicalizer.result
index 3c67b8a15..ae97350fd 100644
--- a/unittest/sql/resolver/expr/test_raw_expr_canonicalizer.result
+++ b/unittest/sql/resolver/expr/test_raw_expr_canonicalizer.result
@@ -1416,8 +1416,10 @@ not a between 1 and 100
     }
   },
   "expr_info": [
+    "IS_OR",
     "IS_CONST_EXPR",
-    "CNT_CONST"
+    "CNT_CONST",
+    "CNT_OR"
   ],
   "rel_id": [
   ],