pgbadger unable to detect log file format

一直用pgbadger分析postgresql的日志，发现周末两天的日志分析出来问题。报错信息如下：

$  /bin/pgbadger /abce/11/log/postgresql-2021-08-08_000000.csv 
FATAL: unable to detect log file format from /abce/11/log/postgresql-2021-08-08_000000.csv, please use -f option.
    - Error at line 17284

从报错信息看，是pgbadger无法检测文件格式。
比较了一下文件的差异

$ file postgresql-2021-08-06_000000.csv
postgresql-2021-08-06_000000.csv: C source, UTF-8 Unicode text, with very long lines

$ file  postgresql-2021-08-09_000000.csv
postgresql-2021-08-09_000000.csv: UTF-8 Unicode text, with very long lines

之前还是一直是"C source, UTF-8 Unicode text, with very long lines",不知道这两天怎么变成了" UTF-8 Unicode text, with very long lines"。这里的原因暂时还没有查明。

根据提示，使用了-f选项。

$ pgbadger --help

Usage: pgbadger [options] logfile [...]

    PostgreSQL log analyzer with fully detailed reports and graphs.

Arguments:

    logfile can be a single log file, a list of files, or a shell command
    returning a list of files. If you want to pass log content from stdin
    use - as filename. Note that input from stdin will not work with csvlog.

Options:

	...
    -f | --format logtype  : possible values: syslog, syslog2, stderr, jsonlog,
                             cvs, pgbouncer, logplex, rds and redshift. Use this
                             option when pgBadger is not able to detect the log
                             format.
	...

虽然执行成功了，但是没有查询语句的信息。

$ /bin/pgbadger /abce/11/log/postgresql-2021-08-09_000000.csv -f cvs
[========================>] Parsed 58191613 bytes of 58191613 (100.00%), queries: 0, events: 0
LOG: Ok, generating html report...

根据"queries: 0, events: 0"也可以看出来有问题。

然后，将选项"-f cvs"换成了"-f csv",再次执行，却成功了：

$  /bin/pgbadger /abce/11/log/postgresql-2021-08-09_000000.csv -f csv
[========================>] Parsed 28324055 bytes of 28324055 (100.00%), queries: 2328, events: 10209
LOG: Ok, generating html report...
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12057.
Wide character in print at /bin/pgbadger line 12312.
Wide character in print at /bin/pgbadger line 12312.
Wide character in print at /bin/pgbadger line 12312.