On 2020-Feb-28, Peter Eisentraut wrote:

> @@ -788,7 +788,6 @@ durable_link_or_rename(const char *oldfile, const char 
> *newfile, int elevel)
>       if (fsync_fname_ext(oldfile, false, false, elevel) != 0)
>               return -1;
>  
> -#ifdef HAVE_WORKING_LINK
>       if (link(oldfile, newfile) < 0)
>       {
>               ereport(elevel,
> @@ -798,17 +797,6 @@ durable_link_or_rename(const char *oldfile, const char 
> *newfile, int elevel)
>               return -1;
>       }
>       unlink(oldfile);
> -#else
> -     /* XXX: Add racy file existence check? */
> -     if (rename(oldfile, newfile) < 0)

Maybe rename durable_link_or_rename to just durable_link?

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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