#92430 by Jo Wouters. Encode blobs as blobs.

includes/cache.inc

@@ -92,9 +92,9 @@ function cache_get($key, $table = 'cache') {
  */
 function cache_set($cid, $table = 'cache', $data, $expire = CACHE_PERMANENT, $headers = NULL) {
   db_lock_table($table);
-  db_query("UPDATE {%s} SET data = '%s', created = %d, expire = %d, headers = '%s' WHERE cid = '%s'", $table, $data, time(), $expire, $headers, $cid);
+  db_query("UPDATE {%s} SET data = %b, created = %d, expire = %d, headers = '%s' WHERE cid = '%s'", $table, $data, time(), $expire, $headers, $cid);
   if (!db_affected_rows()) {
-    @db_query("INSERT INTO {%s} (cid, data, created, expire, headers) VALUES ('%s', '%s', %d, %d, '%s')", $table, $cid, $data, time(), $expire, $headers);
+    @db_query("INSERT INTO {%s} (cid, data, created, expire, headers) VALUES ('%s', %b, %d, %d, '%s')", $table, $cid, $data, time(), $expire, $headers);
   }
   db_unlock_tables();
 }