Question: How many matches as captain were played where Asian Cup played as a captain is Qatar 1988
Schema: create table table_272865_20 (matches_as_captain varchar, asian_cup_played_as_a_captain varchar, PRIMARY KEY (matches_as_captain))
SQL: select matches_as_captain from table_272865_20 where asian_cup_played_as_a_captain = "qatar 1988"