first commit

modules/party/country.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.model import Index
+from trytond.pool import PoolMeta
+
+
+class PostalCode(metaclass=PoolMeta):
+    __name__ = 'country.postal_code'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        t = cls.__table__()
+        cls._sql_indexes.update({
+                Index(
+                    t,
+                    (Index.Unaccent(t.city), Index.Similarity()),
+                    (t.country, Index.Range()),
+                    (t.subdivision, Index.Range())),
+                })