Postgresql 9.2 pg_dump version mismatch

I am trying to dump a Postgresql database using the pg_dump tool.

$ pg_dump books > books.out

How ever i am getting this error.

pg_dump: server version: 9.2.1; pg_dump version: 9.1.6
pg_dump: aborting because of server version mismatch

The --ignore-version option is now deprecated and really would not be a a solution to my issue even if it had worked.

How can I upgrade pg_dump to resolve this issue?

francs

You can either install PostgreSQL 9.2.1 in the pg_dump client machine or just copy the $PGHOME from the PostgreSQL server machine to the client machine. Note that there is no need to initdb a new cluster in the client machine.

After you have finished installing the 9.2.1 software, remember to edit some environment variables in your .bash_profile file.

I encountered this while using Heroku on Ubuntu, and here's how I fixed it:

Add the PostgreSQL apt repository as described at "Linux downloads (Ubuntu) ". (There are similar pages for other operating systems.)
Upgrade to the latest version (9.3 for me) with:
```
sudo apt-get install postgresql
```
Recreate the symbolic link in /usr/bin with:
```
sudo ln -s /usr/lib/postgresql/9.3/bin/pg_dump /usr/bin/pg_dump --force
```
The version number in the /usr/lib/postgresql/... path above should match the server version number in the error you received. So if your error says, pg_dump: server version: 9.9, then link to /usr/lib/postgresql/9.9/....

Omer Aslam

Check the installed version(s) of pg_dump:

find / -name pg_dump -type f 2>/dev/null

My output was:

/usr/pgsql-9.3/bin/pg_dump
/usr/bin/pg_dump

There are two versions installed. To update pg_dump with the newer version:
```
sudo ln -s /usr/pgsql-9.3/bin/pg_dump /usr/bin/pg_dump --force
```

This will create the symlink to the newer version.

user2148301

Macs have a builtin /usr/bin/pg_dump command that is used as default.

With the postgresql install you get another binary at /Library/PostgreSQL/<version>/bin/pg_dump

You can just locate pg_dump and use the full path in command

locate pg_dump

/usr/bin/pg_dump
/usr/bin/pg_dumpall
/usr/lib/postgresql/9.3/bin/pg_dump
/usr/lib/postgresql/9.3/bin/pg_dumpall
/usr/lib/postgresql/9.6/bin/pg_dump
/usr/lib/postgresql/9.6/bin/pg_dumpall

Now just use the path of the desired version in the command

/usr/lib/postgresql/9.6/bin/pg_dump books > books.out

If you're on Ubuntu, you might have an old version of postgresql-client installed. Based on the versions in your error message, the solution would be the following:

sudo apt-get remove postgresql-client-9.1
sudo apt-get install postgresql-client-9.2

Every time you upgrade or re install a new version of PostgreSQL, a latest version of pg_dump is installed.

There must be a PostgreSQL/bin directory somewhere on your system, under the latest version of PostgreSQL that you've installed ( 9.2.1 is latest) and try running the pg_dump from in there.

For those running Postgres.app:

Add the following code to your .bash_profile:

export PATH=/Applications/Postgres.app/Contents/Versions/latest/bin:$PATH

Restart terminal.

For mac users put to the top of .profile file.

export PATH="/Applications/Postgres.app/Contents/MacOS/bin:$PATH"

then run

. ~/.profile

For Macs with Homebrew. I had this problem when fetching the db from Heroku. I've fixed it just running:

brew upgrade postgresql

ThangTD

As explained, this is because your postgresql is in old version -> update it For Mac via homebrew:

brew tap petere/postgresql,

brew install <formula> (eg: brew install petere/postgresql/postgresql-9.6)

Remove old postgre:

brew unlink postgresql

brew link -f postgresql-9.6

If any error happen, don't forget to read and follow brew instruction in each step.

Check this out for more: https://github.com/petere/homebrew-postgresql

The answer sounds silly but if you get the above error and wanna run the pg_dump for earlier version go to bin directory of postgres and type

./pg_dump servername > out.sql ./ ignores the root and looks for pg_dump in current directory

** after install postgres version is match(9.2) Create a symbolic link or new shortcut

**- on '/usr/bin'

syntag is = sudo ln -s [path for use] [new shortcut name]

example

sudo ln -s /usr/lib/postgresql/9.2/bin/pg_dump new_pg_dump

-- how to call : new_pg_dump -h 192.168.9.88 -U postgres database

If you have docker installed you can do something like:

$ docker run postgres:9.2 pg_dump books > books.out

That will download the Docker container with Postgres 9.2 in it, run pg_dump inside of the container, and write the output.

Well, I had the same issue as I have two postgress versions installed.

Just use the proper pg_dump and you don't need to change anything, in your case:

 $> /usr/lib/postgresql/9.2/bin/pg_dump books > books.out

An alternative answer that I don't think anyone else has covered.

If you have multiple PG clusters installed (as I do), then you can view those using pg_lsclusters.

You should be able to see the version and cluster from the list displayed.

From there, you can then do this:

pg_dump --cluster=9.6/main books > books.out

Obviously, replace the version and cluster name with the appropriate one for your circumstances from what is returned by pg_lsclusters separating the version and cluster with a /. This targets the specific cluster you wish to run against.

I had same error and this is how I solved it in my case. This means your postgresql version is 9.2.1 but you have started postgresql service of 9.1.6.

If you run psql postgres you will see:

psql (9.2.1, server 9.1.6)

What I did to solve this problem is:

brew services stop postgresql@9.1.6
brew services restart postgresql@9.2.1

Now run psql postgres and you should have: psql (9.2.1)

You can also run brew services list to see the status of your postgres.

If you're using Heroku's Postgres.app the pg_dump (along with all the other binaries) is in /Applications/Postgres.app/Contents/MacOS/bin/

so in that case it's

ln -s /Applications/Postgres.app/Contents/MacOS/bin/pg_dump /usr/local/bin/pg_dump

ln -s /Applications/Postgres.app/Contents/MacOS/bin/* /usr/local/bin/.

to just grab them all

Try that:

export PATH=/usr/local/bin:$PATH

If the database is installed on a different machine it has probably correct version of pg_dump installed. This means that you can execute pg_dump command remotely with SSH: ssh username@dbserver pg_dump books > books.out

You can also use public key authentication for passwordless execution. Steps to achieve that:

Generate (if not yet done) a pair of keys with ssh-keygen command.
Copy the public key to the database server, usually ~/.ssh/authorized_keys.
Test if the connection works with ssh command.

For macs, use find / -name pg_dump -type f 2>/dev/null find the location of pg_dump

For me, I have following results:

Applications/Postgres.app/Contents/Versions/9.5/bin/pg_dump
/usr/local/Cellar/postgresql/9.4.5_2/bin/pg_dump

If you don't want to use sudo ln -s new_pg_dump old_pg_dump --force, just use:

Applications/Postgres.app/Contents/Versions/9.5/bin/pg_dump to replace with pg_dump in your terminal

For example:

Applications/Postgres.app/Contents/Versions/9.5/bin/pg_dump books > books.out

It works for me!

I experienced a similar problem on my Fedora 17 installation. This is what I did to get around the issue

Delete the builtin pg_dump at /usr/bin/pg_dump (as root: "rm /usr/bin/pg_dump")
Now make a symbolic link of the postgresql installation

Again as root ln -s /usr/pgsql-9.2/bin/pg_dump /usr/bin/pg_dump

That should do the trick

来源：https://stackoverflow.com/questions/12836312/postgresql-9-2-pg-dump-version-mismatch

标签

postgresql

backup

pg-dump

postgresql-9.2