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-rw-r--r--django/db/backends/mysql/operations.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/django/db/backends/mysql/operations.py b/django/db/backends/mysql/operations.py
index e940286720..49ee2919f2 100644
--- a/django/db/backends/mysql/operations.py
+++ b/django/db/backends/mysql/operations.py
@@ -36,8 +36,10 @@ class DatabaseOperations(BaseDatabaseOperations):
# https://dev.mysql.com/doc/mysql/en/date-and-time-functions.html
if lookup_type == 'week_day':
# DAYOFWEEK() returns an integer, 1-7, Sunday=1.
- # Note: WEEKDAY() returns 0-6, Monday=0.
return "DAYOFWEEK(%s)" % field_name
+ elif lookup_type == 'iso_week_day':
+ # WEEKDAY() returns an integer, 0-6, Monday=0.
+ return "WEEKDAY(%s) + 1" % field_name
elif lookup_type == 'week':
# Override the value of default_week_format for consistency with
# other database backends.