[supabase]foreign key query

1. foreign key로 검색할때 null되는거 걸르는 법

      let query = supabase
        .from("program")
        .select("*, instructor_id(name)", { count: "exact" })
        .order("created_at", { ascending: false })
        .range((page - 1) * pageSize, page * pageSize - 1)
        .not('instructor_id', 'is', null);

      if (search) {
        if (selectedFilter === "instructor") {
          query = query.ilike('instructor_id.name', `%${search}%`)
        } else {
          query = query.or(`${selectedFilter}.ilike.%${search}%`);
        }
      }