我过去也遇到过这种错误。Pavel是正确的，这通常是pg_restore创建的脚本中某些东西失败的标志。由于所有的“/N”错误，您在输出的顶部看不到真正的问题。我建议:

插入单个小表(例如，pg_restore . table) ——表full_database =订单。转储>个订单。转储) 如果你没有一个小的，那么从恢复脚本中删除一堆记录-我只是确保./是最后一行被加载(例如，打开订单。转储和删除一堆记录) 观察标准输出，一旦发现问题，就可以随时放弃 表格和重载

在我的情况下，我还没有安装“hstore”扩展，所以脚本在顶部失败。我在目标数据库上安装了hstore，然后就可以继续工作了。

Adding my resolution, incase it helps anyone. I installed postgis but the error wasn't resolved. The --inserts option was not feasible as I had to copy a big schema having tables with thousands of rows. For the same database I didn't see this issue when pg_dump and psql (restore) were run on mac. But the issue came when pg_dump was run on linux machine, the dump file copied to mac and tried for restore. So I opened the dump file in VSCode. It detected unusual line terminators and gave option to remove them. After doing that the dump file restore ran without the invalid command \N errors.

In my recent experience, it's possible to get this error when the real problem has nothing to do with escape characters or newlines. In my case, I had created a dump from database A with pg_dump -a -t table_name > dump.sql and was trying to restore it to database B with psql < dump.sql (after updating the proper env vars, of course) What I finally figured out was that the dump, though it was data-only (the -a option, so that the table structure isn't explicitly part of the dump), was schema-specific. That meant that without manually modifying the dump, I couldn't use a dump generated from schema1.table_name to populate schema2.table_name. Manually modifying the dump was easy, the schema is specified in the first 15 lines or so.

对于我在SUSE 12上使用postgreSQL 10，我通过增加磁盘空间解决了无效命令\N错误。磁盘空间不足导致了我的错误。如果查看df -h输出中数据将要进入的文件系统，就可以判断是否耗尽了磁盘空间。如果文件系统/mount的使用率为100%，在执行类似psql -f db. mount的操作后。对于postgres(请参阅https://www.postgresql.org/docs/current/static/app-pg-dumpall.html)，您可能需要增加可用的磁盘空间。

我有同样的问题，我创建了一个新的数据库，并得到无效的命令\N恢复与psql。 我通过设置与旧数据库相同的表空间来解决这个问题。

例如，旧数据库备份有表空间“pg_default”，我给新数据库定义了相同的表空间，上面的错误已经消失了!

大多数时候，解决方案是安装postgres-contrib包。