postgres 如何根据 oid 找到对应的库/表？ - V2EX

postgres 如何根据 oid 找到对应的库/表？ - V2EX

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这是一个创建于 796 天前的主题，其中的信息可能已经有所发展或是发生改变。

如题，在排查我们业务的一个问题，日志看怀疑是 pg 数据损坏了： err = pq: invalid page in block 51467 of relation base/16562/21708 现在尝试根据 16562 这个 oid 去找对应的是哪个业务的库但是试了很多方式貌似都不行，chatgpt 也问了半天，比如： SELECT oid::regclass AS table_name FROM pg_class WHERE relname = 'your_table_name';

SELECT oid::regclass AS table_name FROM pg_class WHERE relkind = 'r';

截图： https://imgur.com/nKGDNHF

3 条回复 2023-09-05 14:27:33 +08:00

1

lander

OP

2023-09-04 19:16:00 +08:00

补充下 pg 是 12 版本

2

simen513

2023-09-04 22:11:12 +08:00

1

这个是 relfilenode ，不是 oid 。

select datname from pg_database where oid = 16562;
select relname from pg_class where relfilenode = 21708;

3

lander

OP

2023-09-05 14:27:33 +08:00

@simen513 非常感谢

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