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.

Postgres使用\N作为NULL值的替代符号。但是所有psql命令都以反斜杠\符号开始。当复制语句失败，但转储的加载仍在继续时，您可以获得这些消息。这条消息是假警报。如果希望看到COPY语句失败的真正原因，则必须搜索此错误之前的所有行。

可以切换psql到“第一个错误停止”模式，并找到错误:

psql -v ON_ERROR_STOP=1

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。

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!

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.

我的解决办法是:

psql -U your_user your_db < your.file.here.sql  2>&1|more

这样我就可以读取错误消息

我希望这能对大家有所帮助。