diff --git a/src/sql/resolver/dml/ob_stmt_expr_visitor.h b/src/sql/resolver/dml/ob_stmt_expr_visitor.h
index 203749ee50..64cf75d8d6 100644
--- a/src/sql/resolver/dml/ob_stmt_expr_visitor.h
+++ b/src/sql/resolver/dml/ob_stmt_expr_visitor.h
@@ -181,6 +181,8 @@ public:
   int add_replace_exprs(const ObIArray<ObRawExpr *> &from_exprs,
                         const ObIArray<ObRawExpr *> &to_exprs,
                         const ObIArray<ObRawExpr *> *skip_exprs = NULL);
+  void set_skip_bool_param_mysql(bool skip) { replacer_.set_skip_bool_param_mysql(skip); }
+  bool is_skip_bool_param_mysql() { return replacer_.is_skip_bool_param_mysql(); }
 private:
   int add_skip_expr(const ObRawExpr *skip_expr);
   int check_expr_need_skip(const ObRawExpr *skip_expr, bool &need_skip);
diff --git a/src/sql/resolver/expr/ob_raw_expr_replacer.cpp b/src/sql/resolver/expr/ob_raw_expr_replacer.cpp
index eac1e9b25d..52c30430fb 100644
--- a/src/sql/resolver/expr/ob_raw_expr_replacer.cpp
+++ b/src/sql/resolver/expr/ob_raw_expr_replacer.cpp
@@ -21,7 +21,7 @@ namespace oceanbase
 namespace sql
 {
 ObRawExprReplacer::ObRawExprReplacer()
-  : replace_happened_(false)
+  : replace_happened_(false), skip_bool_param_mysql_(false)
 {}
 
 ObRawExprReplacer::~ObRawExprReplacer()
@@ -117,6 +117,15 @@ int ObRawExprReplacer::visit(ObOpRawExpr &expr)
     for (int64_t i = 0; OB_SUCC(ret) && i < count; ++i) {
       if (OB_FAIL(check_need_replace(expr.get_param_expr(i), new_expr, need_replace))) {
         LOG_WARN("failed to check need replace", K(ret));
+      } else if (is_skip_bool_param_mysql()) {
+        if (T_OP_IS == expr.get_expr_type() && i == 1) {
+          //do nothing
+        } else if (T_OP_IS_NOT == expr.get_expr_type() && i == 1) {
+          //do nothing
+        } else if (need_replace) {
+          ret = expr.replace_param_expr(i, new_expr);
+          replace_happened_ = true;
+        }
       } else if (need_replace) {
         ret = expr.replace_param_expr(i, new_expr);
         replace_happened_ = true;
diff --git a/src/sql/resolver/expr/ob_raw_expr_replacer.h b/src/sql/resolver/expr/ob_raw_expr_replacer.h
index 4892dfc10e..5c2ce1b1c4 100644
--- a/src/sql/resolver/expr/ob_raw_expr_replacer.h
+++ b/src/sql/resolver/expr/ob_raw_expr_replacer.h
@@ -54,6 +54,8 @@ public:
 
   virtual bool skip_child(ObRawExpr &expr) override;
   bool get_replace_happened() const { return replace_happened_; }
+  void set_skip_bool_param_mysql(bool skip) { skip_bool_param_mysql_ = skip; }
+  bool is_skip_bool_param_mysql() { return skip_bool_param_mysql_; }
   int add_replace_expr(ObRawExpr *from_expr,
                        ObRawExpr *to_expr);
   int add_replace_exprs(const ObIArray<ObRawExpr *> &from_exprs,
@@ -78,6 +80,9 @@ private:
   hash::ObHashMap<uint64_t, uint64_t> expr_replace_map_;
 
   bool replace_happened_;
+   //If true, skip param epxrs which are resolved as flags instead of exprs in mysql.
+   //(e.g. the second param of IS expr)
+  bool skip_bool_param_mysql_;
 };
 
 } // end namespace sql
diff --git a/src/sql/rewrite/ob_transform_pre_process.cpp b/src/sql/rewrite/ob_transform_pre_process.cpp
index 5e8947eee2..78ad5c991e 100644
--- a/src/sql/rewrite/ob_transform_pre_process.cpp
+++ b/src/sql/rewrite/ob_transform_pre_process.cpp
@@ -8524,41 +8524,33 @@ int ObTransformPreProcess::replace_remove_const_exprs(ObSelectStmt *stmt,
     LOG_WARN("failed to init compare context", K(ret));
   } else {
     if (is_mysql_mode()) {
-      if (OB_FAIL(ObTransformUtils::replace_exprs(static_const_exprs, static_remove_const_exprs, stmt->get_having_exprs()))) {
-        LOG_WARN("failed to replace exec_params in having expr", K(ret));
-      } else if (OB_FAIL(ObTransformUtils::replace_exprs(column_ref_exprs, column_ref_remove_const_exprs, stmt->get_having_exprs()))) {
-        LOG_WARN("failed to replace exec_params in having expr", K(ret));
+      ObStmtExprReplacer replacer;
+      replacer.remove_all();
+      replacer.add_scope(SCOPE_HAVING);
+      replacer.add_scope(SCOPE_SELECT);
+      replacer.add_scope(SCOPE_ORDERBY);
+      replacer.set_recursive(false);
+      replacer.set_skip_bool_param_mysql(true);
+      if (OB_FAIL(replacer.add_replace_exprs(static_const_exprs, static_remove_const_exprs))) {
+        LOG_WARN("failed to add replace exprs", K(ret));
+      } else if (OB_FAIL(replacer.add_replace_exprs(column_ref_exprs, column_ref_remove_const_exprs))) {
+        LOG_WARN("failed to add replace exprs", K(ret));
+      } else if (OB_FAIL(stmt->iterate_stmt_expr(replacer))) {
+        LOG_WARN("failed to iterate stmt expr", K(ret));
       }
-    } else if (is_oracle_mode() && OB_FAIL(ObTransformUtils::replace_exprs(exec_params, exec_params_remove_const_exprs, stmt->get_having_exprs()))) {
-      LOG_WARN("failed to replace exec_params in having expr", K(ret));
-    }
-  }
-  for (int i = 0; OB_SUCC(ret) && i < stmt->get_select_item_size(); ++i) {
-    if (OB_ISNULL(stmt->get_select_item(i).expr_)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("unexpected null", K(ret));
-    } else if (is_mysql_mode()) {
-      if (OB_FAIL(ObTransformUtils::replace_expr(static_const_exprs, static_remove_const_exprs, stmt->get_select_item(i).expr_))) {
-        LOG_WARN("failed to replace exec_params in having expr", K(ret));
-      } else if (OB_FAIL(ObTransformUtils::replace_expr(column_ref_exprs, column_ref_remove_const_exprs, stmt->get_select_item(i).expr_))) {
-        LOG_WARN("failed to replace exec_params in having expr", K(ret));
+    } else {
+      ObStmtExprReplacer replacer;
+      replacer.remove_all();
+      replacer.add_scope(SCOPE_HAVING);
+      replacer.add_scope(SCOPE_SELECT);
+      replacer.add_scope(SCOPE_ORDERBY);
+      replacer.set_recursive(false);
+      replacer.set_skip_bool_param_mysql(false);
+      if (OB_FAIL(replacer.add_replace_exprs(exec_params, exec_params_remove_const_exprs))) {
+        LOG_WARN("failed to add replace exprs", K(ret));
+      } else if (OB_FAIL(stmt->iterate_stmt_expr(replacer))) {
+        LOG_WARN("failed to iterate stmt expr", K(ret));
       }
-    } else if (OB_FAIL(ObTransformUtils::replace_expr(exec_params, exec_params_remove_const_exprs, stmt->get_select_item(i).expr_))) {
-      LOG_WARN("failed to replace exec_params in having expr", K(ret));
-    }
-  }
-  for (int i = 0; OB_SUCC(ret) && i < stmt->get_order_item_size(); ++i) {
-    if (OB_ISNULL(stmt->get_order_item(i).expr_)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("unexpected null", K(ret));
-    } else if (is_mysql_mode()) {
-      if (OB_FAIL(ObTransformUtils::replace_expr(static_const_exprs, static_remove_const_exprs, stmt->get_order_item(i).expr_))) {
-        LOG_WARN("failed to replace exec_params in having expr", K(ret));
-      } else if (OB_FAIL(ObTransformUtils::replace_expr(column_ref_exprs, column_ref_remove_const_exprs, stmt->get_order_item(i).expr_))) {
-        LOG_WARN("failed to replace exec_params in having expr", K(ret));
-      }
-    } else if (OB_FAIL(ObTransformUtils::replace_expr(exec_params, exec_params_remove_const_exprs, stmt->get_order_item(i).expr_))) {
-      LOG_WARN("failed to replace exec_params in having expr", K(ret));
     }
   }