Use max(x) instead of ORDER BY x DESC LIMIT 1

Doesn't use non-standard syntax, clearer intent, reportedly faster
tsudoko · Jan 4, 2020 · 3b8fe9e · 3b8fe9e
1 parent e8850f2
commit 3b8fe9e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ankisyncd/media.py b/ankisyncd/media.py
@@ -47,7 +47,7 @@ def dir(self):
         return self._dir
 
     def lastUsn(self):
-        return self.db.scalar("SELECT usn FROM media ORDER BY usn DESC LIMIT 1") or 0
+        return self.db.scalar("SELECT max(usn) FROM media") or 0
 
     def mediaCount(self):
         return self.db.scalar("SELECT count() FROM media WHERE csum IS NOT NULL")