在用Spring Boot JPA的时候，

    @Query(value = "delete from search_vec where part = ?1 ", nativeQuery = true)
    void dropByPart(int part);

导致异常：

Caused by: java.sql.SQLException: Statement.executeQuery() cannot issue statements that do not produce result sets.

解决方法：
在@Query上加上@Modifying，表示不需要返回值

    @Modifying
    @Query(value = "delete from search_vec where part = ?1 ", nativeQuery = true)
    void dropByPart(int part);

这是因为，根据Spring data jpa官网

Doing so triggers the query annotated to the method as an updating query instead of a selecting one.

我猜测@Query对应到底层jdbc框架是Statement.executeQuery()，而@Modifying@Query对应的是Statement.execute();