DateColumn.before_write_item isinstance check

mymarilyn · Apr 13, 2019 · 4e5a74e · 4e5a74e
1 parent 8a69cbf
commit 4e5a74e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/clickhouse_driver/columns/datecolumn.py b/clickhouse_driver/columns/datecolumn.py
@@ -12,7 +12,9 @@ class DateColumn(FormatColumn):
     epoch_end = date(2105, 1, 1)
 
     def before_write_item(self, value):
-        value = date(value.year, value.month, value.day)
+        if type(value) != date:
+            value = date(value.year, value.month, value.day)
+
         diff = (value - self.epoch_start).days
         if value > self.epoch_end or diff < 0:
             return 0