ITS#7793 doc update, again

diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index a4c4bca621de7f8d5f679c1871326a846a5e265a..11b46bfa4866faca3c5eefacabc0d445ed8393e1 100644 (file)
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -1410,7 +1410,10 @@ int  mdb_cursor_get(MDB_cursor *cursor, MDB_val *key, MDB_val *data,
         * <ul>
         *      <li>#MDB_CURRENT - replace the item at the current cursor position.
         *              The \b key parameter must still be provided, and must match it.
-        *              So must \b data if using sorted duplicates (#MDB_DUPSORT).
+        *              If using sorted duplicates (#MDB_DUPSORT) the data item must still
+        *              sort into the same place. This is intended to be used when the
+        *              new data is the same size as the old. Otherwise it will simply
+        *              perform a delete of the old record followed by an insert.
         *      <li>#MDB_NODUPDATA - enter the new key/data pair only if it does not
         *              already appear in the database. This flag may only be specified
         *              if the database was opened with #MDB_DUPSORT. The function will