I installed PostgreSQL and the php PDO driver on my 14.04 Ubuntu like this:

sudo apt-get install postgresql postgresql-contrib
sudo apt-get install php5-pgsql

Which installed PostgreSQL 9.3 and worked fine, but now I want to run 9.5. So I updated the postgresql packages by adding the PostgreSQL repo following this guide and updating the packages.

However phpinfo still reports 9.3 after restarting apache:

PostgreSQL(libpq) Version 9.3.10

I can imagine that I somehow also have to update the php5-pgsql package? But then how? Or should I do something else?


Ok I resolved this issue but was struggling for some time, so I don't know exactly what the easiest method is to do. But I will describe a recipe which will probably work for others as well.

The first important note is: I think I resolved the issue since I can use the new upsert feature introduced in 9.5 (INSERT .. ON CONFLICT DO UPDATE ..). However my phpinfo() still reports version 9.3.

One more word about the problem situation: After adding the PostgreSQL repo and doing apt-get upgrade I had two version of PostgreSQL apparently.

ls /usr/share/postgresql
9.3  9.5  

So to fix I did:

dpkg --get-selections | grep postgresql

You will get a list of all the related packages installed. I deinstalled them all with --purge (this will probably remove all your databases as well, no problem in my case since they were empty).

sudo apt-get remove --purge postgresql postgresql-9.5 postgresql-contrib etc.

It gave me errors on some packages but when I repeated it, in the end all packages were gone. Also do this for the php pdo driver:

sudo apt-get remove --purge php5-pgsql

Now install postgresql again, only 9.5 will be installed.

sudo apt-get install postgresql postgresql-contrib php5-pgsql 

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.