problems with query inner join to db sqlite android studio

Question

I am making an app to debate, this app has two tables in its database sqlite called: table_summary_debate and user. User stores the users and table_summary_debate stores the debates with their respective parameters, the relationship between both is 1 to N and the foreign key is is in the table_summary_debate table. What I want is to obtain the primary key of the table_summary_debate table through a query, but when I do it, it returns a 0 in the primary key of the table_summary_debate table, does anyone know what I am doing wrong with this join query?

 Cursor cursor = db.rawQuery ("SELECT table_summary_debate.id_debate FROM table_summary_debate INNER JOIN user ON table_summary_debate.user_id = user.user_id  WHERE table_summary_debate.user_id =?",new String[]{String.valueOf(id)});