Refs #23853 -- Updated sql.query.Query.join() docstring.

Follow up to ab89414f40.

django/db/models/sql/query.py

@@ -894,27 +894,16 @@ class Query:
 
     def join(self, join, reuse=None):
         """
-        Return an alias for the join in 'connection', either reusing an
-        existing alias for that join or creating a new one. 'connection' is a
-        tuple (lhs, table, join_cols) where 'lhs' is either an existing
-        table alias or a table name. 'join_cols' is a tuple of tuples containing
-        columns to join on ((l_id1, r_id1), (l_id2, r_id2)). The join corresponds
-        to the SQL equivalent of::
+        Return an alias for the 'join', either reusing an existing alias for
+        that join or creating a new one. 'join' is either a
+        sql.datastructures.BaseTable or Join.
 
-            lhs.l_id1 = table.r_id1 AND lhs.l_id2 = table.r_id2
-
-        The 'reuse' parameter can be either None which means all joins
-        (matching the connection) are reusable, or it can be a set containing
-        the aliases that can be reused.
+        The 'reuse' parameter can be either None which means all joins are
+        reusable, or it can be a set containing the aliases that can be reused.
 
         A join is always created as LOUTER if the lhs alias is LOUTER to make
-        sure we do not generate chains like t1 LOUTER t2 INNER t3. All new
-        joins are created as LOUTER if nullable is True.
-
-        If 'nullable' is True, the join can potentially involve NULL values and
-        is a candidate for promotion (to "left outer") when combining querysets.
-
-        The 'join_field' is the field we are joining along (if any).
+        sure chains like t1 LOUTER t2 INNER t3 aren't generated. All new
+        joins are created as LOUTER if the join is nullable.
         """
         reuse = [a for a, j in self.alias_map.items()
                  if (reuse is None or a in reuse) and j == join]