last_executed_query always returns the string 'None'.

[kncray]

original_query = 'select * from A'
params = None

last_executed_query = self.db.ops.last_executed_query(self.cursor, original_query, params)

print(last_executed_query == 'None') # True

pip freeze | egrep -e "(Django|mysqlclient)"
Django==1.11.7
mysqlclient==1.3.14

[kncray]

The cause of the above symptoms is related to the following two commits.

• According to the 994a00 commit in Django, _last_executed has been changed to _executed.
• According to the 2ce514 commit in mysqlclient, _last_executed has been changed to _executed.