only in patch2:
unchanged:
--- a/core/includes/update.inc
+++ b/core/includes/update.inc
@@ -166,6 +166,62 @@ function update_prepare_d8_bootstrap() {
       }
     }
   }
+  if (!db_table_exists('cache_plugin')) {
+    $cache_plugin = array(
+      'description' => 'Cache table for plugin discovery.',
+      'fields' => array(
+        'cid' => array(
+          'description' => 'Primary Key: Unique cache ID.',
+          'type' => 'varchar',
+          'length' => 255,
+          'not null' => TRUE,
+          'default' => '',
+        ),
+        'data' => array(
+          'description' => 'A collection of data to cache.',
+          'type' => 'blob',
+          'not null' => FALSE,
+          'size' => 'big',
+        ),
+        'expire' => array(
+          'description' => 'A Unix timestamp indicating when the cache entry should expire, or 0 for never.',
+          'type' => 'int',
+          'not null' => TRUE,
+          'default' => 0,
+        ),
+        'created' => array(
+          'description' => 'A Unix timestamp indicating when the cache entry was created.',
+          'type' => 'int',
+          'not null' => TRUE,
+          'default' => 0,
+        ),
+        'serialized' => array(
+          'description' => 'A flag to indicate whether content is serialized (1) or not (0).',
+          'type' => 'int',
+          'size' => 'small',
+          'not null' => TRUE,
+          'default' => 0,
+        ),
+        'tags' => array(
+          'description' => 'Space-separated list of cache tags for this entry.',
+          'type' => 'text',
+          'size' => 'big',
+          'not null' => FALSE,
+        ),
+        'checksum' => array(
+          'description' => 'The tag invalidation sum when this entry was saved.',
+          'type' => 'int',
+          'not null' => TRUE,
+          'default' => 0,
+        ),
+      ),
+      'indexes' => array(
+        'expire' => array('expire'),
+      ),
+      'primary key' => array('cid'),
+    );
+    db_create_table('cache_plugin', $cache_plugin);
+  }
 }
 
 /**