Update src/EventSubscriber/CleanerCacheClearEventSubscriber.php

Closes #2790753

src/EventSubscriber/CleanerCacheClearEventSubscriber.php

@@ -142,9 +142,10 @@ class CleanerCacheClearEventSubscriber implements EventSubscriberInterface, Cont
       $query = $this->database->select('INFORMATION_SCHEMA.TABLES', 'tables');
       $query->fields('tables', ['table_name', 'table_schema']);
       $query->condition('table_schema', $db_name);
-      $query->condition('table_name', 'cache_%', 'LIKE');
+      // We need to do %... because of eventual table prefixes:
+      $query->condition('table_name', '%cache_%', 'LIKE');
       // Exclude cachetags table.
-      $query->condition('table_name', 'cachetags', '<>');
+      $query->condition('table_name', '%cachetags', 'NOT LIKE');
       $tables = $query->execute()->fetchCol();
     }
     return $tables;