java - 组织.postgresql.util.PSQLException : ERROR: syntax error at or near ":"

Question

我正在从 PgAdmin4 运行成功运行的 SQL 查询，但是当我从我的 Spring Boot 应用程序中使用相同的查询来运行它时，出现错误“org.postgresql.util.PSQLException: ERROR: syntax error at or near ":""

SQL 查询如下所示:

SELECT
   student.surname, student.first_name, student.last_name,
   jsonb_pretty(elems)
FROM assessment, jsonb_array_elements(assessment.assessment) AS elems
JOIN student ON student.id = (elems->>'student_id')::uuid
WHERE subject_id = 2
AND academy_year_id =3
AND form_id = 2
AND term_id = 1
AND section_id = 4;

这从 PgAdmin4 成功运行。

这是我在我的存储库中的实现

@Query(nativeQuery = true, value = "SELECT\n" +
        "       student.surname, student.first_name, student.last_name,\n" +
        "       jsonb_pretty(elems)\n" +
        "FROM assessment, jsonb_array_elements(assessment.assessment) AS elems\n" +
        "JOIN student ON student.id = (elems->>'student_id')::uuid\n" +
        "WHERE subject_id = 2\n" +
        "AND academy_year_id =3\n" +
        "AND form_id = 2\n" +
        "  AND term_id = 1\n" +
        "AND section_id = 4;")
Object[] getSubjectAssessments();

当我的 API 调用此方法时，我收到此错误消息

org.postgresql.util.PSQLException: ERROR: syntax error at or near ":" 

我不知道我做错了什么。

Answer 1

JPA 无法处理 Postgres 特定的转换运算符 ::。

改用cast():

JOIN student ON student.id = cast(elems->>'student_id' as uuid)