Table schema:
CREATE TABLE table_name_92 (total_wins INTEGER, number_of_clubs VARCHAR, season VARCHAR, runners_up VARCHAR)

Question: What is the lowest total number of wins in a season before 1989 with tianjin as the runners-up and more than 8 clubs?
SQL: SELECT MIN(total_wins) FROM table_name_92 WHERE season < 1989 AND runners_up = "tianjin" AND number_of_clubs > 8