presto-parser/src/main/java/io/prestosql/sql/tree/ShowRoleGrants.java/ShowRoleGrants/equals
class ShowRoleGrants:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if ((obj == null) || (getClass() != obj.getClass())) {
            return false;
        }
        ShowRoleGrants o = (ShowRoleGrants) obj;
        return Objects.equals(catalog, o.catalog);
    }