pg_restore无法加载转储

Question

Help! All of a sudden, I'm getting this error when trying to restore my local DB from a dump:

$ pg_restore --no-acl --no-owner --dbname my_db tmp/latest.dump
pg_restore: [archiver (db)] Error while INITIALIZING:
pg_restore: [archiver (db)] could not execute query: ERROR:  unrecognized configuration parameter "idle_in_transaction_session_timeout"
Command was: SET idle_in_transaction_session_timeout = 0;

Locally, I'm running postgresql 9.6.3. The dump comes from a server that is running 9.4. No known configuration changes to my machine since this command stopped working.

I understand that idle_in_transaction_session_timeout was introduced in 9.6, but I should still be able to load a dump generated by 9.4. So what gives?

Answer 1

The problem is that you used pg_dump from PostgreSQL 9.6 to create the dump of the 9.4 database.

If you want to create a dump that you can load into a 9.4 database, use pg_dump from PostgreSQL 9.4.