--- a/src/rcldb/rcldoc.h
+++ b/src/rcldb/rcldoc.h
@@ -44,9 +44,9 @@
// can be accessed after a query without fetching the actual document).
// We indicate the routine that sets them up during indexing
- // This is just "file://" + binary or url-encoded filename. No
- // transcoding: this is used to access files Index: computed from
- // fn by Db::add caller. Query: from doc data.
+ // Binary or url-encoded url. No transcoding: this is used to access files
+ // Index: computed by Db::add caller.
+ // Query: from doc data.
string url;
// Transcoded version of the simple file name for SFN-prefixed
@@ -160,6 +160,9 @@
static const string keytt; // title
static const string keykw; // keywords
static const string keymd5; // file md5 checksum
+ static const string keybcknd; // backend type for data not from the filesys
+ // udi back from index. Only set by Rcl::Query::getdoc().
+ static const string keyudi;
};