fixing upgrade script

diff --git a/src/core/SQL/SQLite/10/upgrade_000_switch_to_msgid.sql b/src/core/SQL/SQLite/10/upgrade_000_switch_to_msgid.sql
index fa40d08..de1b9bf 100644 (file)
--- a/src/core/SQL/SQLite/10/upgrade_000_switch_to_msgid.sql
+++ b/src/core/SQL/SQLite/10/upgrade_000_switch_to_msgid.sql
@@ -1,3 +1,3 @@
 UPDATE buffer
-SET lastseen = (SELECT messageid FROM backlog WHERE backlog.bufferid = bufferid AND backlog.time = lastseen LIMIT 1)
+SET lastseen = (SELECT messageid FROM backlog WHERE backlog.bufferid = buffer.bufferid AND backlog.time = buffer.lastseen UNION SELECT 0 ORDER BY messageid DESC LIMIT 1)
 WHERE lastseen != 0