Add some indexes

models/account_move_line.py

@@ -37,4 +37,5 @@
         ondelete="restrict",
         readonly=True,
         store=True,
+        index=True,
     )

models/account_period.py

@@ -67,6 +67,7 @@
         string="Fiscal year",
         help="The fiscal year this period is in.",
         required=True,
+        index=True,
     )
 
     state = fields.Selection(