ORACLE FOR UPDATE WAIT n 超时等待子句 迁移 postgresql 16 怎么改

兼容性判定

怎么改

SET lock_timeout + FOR UPDATE

判定说明

仅 NOWAIT/SKIP LOCKED；错误码与应用重试逻辑联动改

库侧 / 应用侧路径

推荐路线：case_by_case。验证建议：PG 系只有 NOWAIT/SKIP LOCKED，无 WAIT n；等待超时需改会话级 lock_timeout 参数模拟，错误码与应用重试逻辑需联动改

规则样例

SELECT * FROM acct WHERE id = 1 FOR UPDATE WAIT 5

SELECT * FROM job_queue FOR UPDATE OF status WAIT 10

SELECT * FROM acct WHERE id = 1 FOR UPDATE NOWAIT