diff --git a/src/sql/ob_dml_stmt_printer.cpp b/src/sql/ob_dml_stmt_printer.cpp
index 4a23026440..91d77515b6 100644
--- a/src/sql/ob_dml_stmt_printer.cpp
+++ b/src/sql/ob_dml_stmt_printer.cpp
@@ -1216,8 +1216,13 @@ int ObDMLStmtPrinter::print_json_table_nested_column(const TableItem *table_item
           DATA_PRINTF(" null on empty");
         } else if (col_info.on_empty_ == 2) {
           DATA_PRINTF(" default ");
-          if (OB_SUCC(ret)
-              && OB_FAIL(expr_printer_.do_print(cur_def->empty_expr_, T_NONE_SCOPE))) {
+          if (OB_FAIL(ret)) {
+          } else if (T_BOOL == cur_def->empty_expr_->get_expr_type()) { // bool need print 'true' or 'false' int json_table, not 1=1'
+            ObConstRawExpr *con_expr = static_cast<ObConstRawExpr*>(cur_def->empty_expr_);
+            if (OB_FAIL(databuff_printf(buf_, buf_len_, *pos_, con_expr->get_value().get_bool() ? "true" : "false"))) {
+              LOG_WARN("fail to print startup filter", K(ret));
+            }
+          } else if (OB_FAIL(expr_printer_.do_print(cur_def->empty_expr_, T_NONE_SCOPE))) {
             LOG_WARN("fail to print default value col", K(ret));
           }
           DATA_PRINTF(" on empty");
@@ -1230,8 +1235,13 @@ int ObDMLStmtPrinter::print_json_table_nested_column(const TableItem *table_item
           DATA_PRINTF(" null on error");
         } else if (col_info.on_error_ == 2) {
           DATA_PRINTF(" default ");
-          if (OB_SUCC(ret)
-              && OB_FAIL(expr_printer_.do_print(cur_def->error_expr_, T_NONE_SCOPE))) {
+          if (OB_FAIL(ret)) {
+          } else if (T_BOOL == cur_def->error_expr_->get_expr_type()) { // bool need print 'true' or 'false' int json_table, not 1=1'
+            ObConstRawExpr *con_expr = static_cast<ObConstRawExpr*>(cur_def->error_expr_);
+            if (OB_FAIL(databuff_printf(buf_, buf_len_, *pos_, con_expr->get_value().get_bool() ? "true" : "false"))) {
+              LOG_WARN("fail to print startup filter", K(ret));
+            }
+          } else if (OB_FAIL(expr_printer_.do_print(cur_def->error_expr_, T_NONE_SCOPE))) {
             LOG_WARN("fail to print default value col", K(ret));
           }
           DATA_PRINTF(" on error");
diff --git a/src/sql/resolver/dml/ob_del_upd_resolver.cpp b/src/sql/resolver/dml/ob_del_upd_resolver.cpp
index afed49891a..57cbf70c00 100644
--- a/src/sql/resolver/dml/ob_del_upd_resolver.cpp
+++ b/src/sql/resolver/dml/ob_del_upd_resolver.cpp
@@ -1016,6 +1016,9 @@ int ObDelUpdResolver::set_base_table_for_view(TableItem &table_item, const bool
       } else if (base->is_values_table()) {
         ret = OB_ERR_NON_UPDATABLE_TABLE;
         LOG_WARN("non update table", K(ret));
+      } else if (base->is_json_table()) {
+        ret = is_mysql_mode() ? OB_ERR_NON_UPDATABLE_TABLE : OB_ERR_O_DELETE_VIEW_NON_KEY_PRESERVED;
+        LOG_WARN("non update json table", K(ret));
       } else {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("unexpected table type in view", K(ret), K(*base));
diff --git a/src/sql/resolver/dml/ob_dml_resolver.cpp b/src/sql/resolver/dml/ob_dml_resolver.cpp
index ec5e82dcc6..2a8800e548 100755
--- a/src/sql/resolver/dml/ob_dml_resolver.cpp
+++ b/src/sql/resolver/dml/ob_dml_resolver.cpp
@@ -8805,9 +8805,12 @@ int ObDMLResolver::generate_json_table_output_column_item(TableItem *table_item,
   }
 
   OX (col_expr->set_database_name(table_item->database_name_));
-  if (OB_SUCC(ret) && lib::is_oracle_mode() && ob_is_enumset_tc(col_expr->get_data_type())) {
+  if (OB_FAIL(ret)) {
+  } else if (lib::is_oracle_mode() && ob_is_enumset_tc(col_expr->get_data_type())) {
     ret = OB_NOT_SUPPORTED;
     LOG_WARN("not support enum set in table function", K(ret));
+  } else {
+    col_expr->unset_result_flag(NOT_NULL_FLAG);
   }
   OX (column_item.expr_ = col_expr);
   OX (column_item.table_id_ = col_expr->get_table_id());