CREATE TABLE table_name_6 (debut_year NUMBER, goals VARCHAR2, games VARCHAR2, years_at_club VARCHAR2)

What is the debut year for the player with fewer than 54 games, fewer than 8 goals and 1989 at club?
SELECT AVG(debut_year) FROM table_name_6 WHERE games < 54 AND years_at_club = "1989" AND goals < 8
SELECT AVG("debut_year") FROM "table_name_6" WHERE "1989" = "years_at_club" AND "games" < 54 AND "goals" < 8