--- /dev/null
+<?php
+
+namespace Drupal\menu_link_content;
+
+use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+
+/**
+ * Defines the menu_link_content schema handler.
+ */
+class MenuLinkContentStorageSchema extends SqlContentEntityStorageSchema {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function getSharedTableFieldSchema(FieldStorageDefinitionInterface $storage_definition, $table_name, array $column_mapping) {
+ $schema = parent::getSharedTableFieldSchema($storage_definition, $table_name, $column_mapping);
+ $field_name = $storage_definition->getName();
+
+ if ($table_name == 'menu_link_content') {
+ switch ($field_name) {
+ case 'rediscover':
+ $this->addSharedTableFieldIndex($storage_definition, $schema, TRUE);
+ break;
+ }
+ }
+
+ return $schema;
+ }
+
+}