Re: BUG #18648: When I restore the database on rockylinux9, I will use amcheck to check that there will be an abnorm

It is indeed this issue that caused the problem. Thank you very much.

> 2024年10月9日 08:54，PG Bug reporting form <noreply(at)postgresql(dot)org> 写道：
>
> The following bug has been logged on the website:
>
> Bug reference: 18648
> Logged by: weijie JL
> Email address: weijie1006jl(at)gmail(dot)com
> PostgreSQL version: 14.12
> Operating system: RockyLinux 9
> Description:
>
> I used dnf to install PostgreSQL on a physical machine running Rocky Linux
> 9, and then performed a database restore using the pgBackRest tool. After
> multiple experiments, I still found that there were index corruption issues
> after the restore. Specifically, using amcheck to check the indexes resulted
> in the following error: ERROR: XX002: item order invariant violated for
> index "idx_template_xxxx_unique". However, this restore process does not
> reproduce the issue on CentOS 7.9. The business impact of this index anomaly
> is that when the query performs a full table scan, it can retrieve the
> required data, but when using the index, the query results are empty.
>