--- /dev/null
+/**
+ * Implements hook_field_purge_field_storage().
+ */
+function {{ machine_name }}_field_purge_field_storage(\Drupal\field\Entity\FieldStorageConfig $field_storage) {
+ db_delete('my_module_field_storage_info')
+ ->condition('uuid', $field_storage->uuid())
+ ->execute();
+}