On 7/8/20 6:45 AM, Adrian Klaver wrote:
On 7/8/20 6:05 AM, Thomas Kellerer wrote:
Hello,

I noticed the following strage output when running Postgres 12.3 (not psql) on Windows

     postgres=# select pg_current_logfile();
              pg_current_logfile
     ------------------------------------
      pg_log/postgresql-2020-07-08.log\r
     (1 row)

Note the "\r" at the end of the file name.

This does not happen when running Postgres on Linux.

Is this intended for some strange reason?
Or a bug or a technical limitation?

I'm guessing the difference between Unix line ending:

\n

and Windows:

\r\n


From source(backend/utils/adt/misc.c):

nlpos = strchr(log_filepath, '\n');
if (nlpos == NULL)
{
        /* Uh oh.  No newline found, so file content is corrupted. */
        elog(ERROR,
"missing newline character in \"%s\"", LOG_METAINFO_DATAFILE);
        break;
}
*nlpos = '\0';

if (logfmt == NULL || strcmp(logfmt, log_format) == 0)
{
        FreeFile(fd);
        PG_RETURN_TEXT_P(cstring_to_text(log_filepath));
}


Regards
Thomas






--
Adrian Klaver
adrian.kla...@aklaver.com


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