Spring JPA @Param of filename for postgres COPY

Question

我有以下连接到 PostgreSQL 数据库的接口：

public interface ExampleDAO extends JpaRepository<Example, Integer>
{
    @Modifying
    @Query(value="COPY my_table FROM :filename CSV HEADER", nativeQuery=true)
    public int copyMyTable(@Param("filename") String filename);
}

但是当我运行它时我得到

org.springframework.dao.InvalidDataAccessResourceUsageException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not execute statement

我删除了 @Param 并硬编码了文件名，它工作正常。传递的文件名是：

copyMyTable("C:\path\to\my\file.csv");

这个我完全不知所措！

Answer 1

判断from this threadPostgres不支持这种语句绑定参数

Spring JPA @Param of filename for postgres COPY

Spring JPA @Param of filename for postgres COPY

postgresql

file

csv

spring-data-jpa

sqlbulkcopy