load timezone database at once

nakagami · Dec 10, 2018 · 24b6846 · 24b6846
1 parent 1eb804e
commit 24b6846
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/firebirdsql/tz_utils.py b/firebirdsql/tz_utils.py
@@ -3,7 +3,8 @@
 timezone_id_by_name = {}
 
 def load_timezone_ids(connection):
-    global id_to_name
+    if timezone_name_by_id:
+        return
     cur = connection.cursor()
     cur.execute("select count(*) from rdb$relations where rdb$relation_name='RDB$TIME_ZONES' and rdb$system_flag=1")
     if cur.fetchone()[0]: