Is there a problem with having 2 versions of postgres for Apache-Age - postgresql

Question

I installed the Apache-Age extension for postgres and this extension specifies that it works with postgres-11 or postgres-12. However I have already installed postgres-14 on my system. Am i gonna have a problem with that? And if I am how do i only uninstall the postgres-14 version?
I tried searching the deb packages installed to see if i find postgres-14 but i can't seem to find it

Answer 1

So mainly the apache-age extension works with PostgreSQL versions 11 and 12. It creates problems with different other versions of PostgreSQL.
In order to have a smooth installation follow the below steps:
uninstall PostgreSQL version 14
reinstall PostgreSQL version 11 or 12
Uninstalling PostgreSQL version 14:
For uninstalling the PostgreSQL from ubuntu:
sudo apt remove postgresql postgresql-contrib
The output would look something like this:
After uninstalling PostgreSQL, uninstall the dependencies
sudo apt autoremove
The output of the above command would look like this:
enter Y here and the PostgreSQL will be uninstalled.
Now reinstall the PostgreSQL version 11 or 12 using the below commands:
Download the files in any folder:
wget https://ftp.postgresql.org/pub/source/v11.18/postgresql-11.18.tar.gz && tar -xvf postgresql-11.18.tar.gz && rm -f postgresql-11.18.tar.gz
The command will download and extract the tar files for Linux users from Source in the working directory.
Installing PG:
Now we will move toward installing PG
cd postgresql-11.18
# configure by setting flags
./configure --enable-debug --enable-cassert --prefix=$(path) CFLAGS="-ggdb -Og
# now install
make install
References:
For more references you can also see:
https://dev.to/talhahahae/installation-of-apache-age-and-postgresql-from-source-in-linux-part-1-gka
https://www.commandprompt.com/education/how-to-uninstall-postgresql-from-ubuntu/#:~:text=Conclusion-,To%20uninstall%20Postgres%20from%20your%20Ubuntu%20operating%20system%2C%20open%20the,“sudo%20apt%20autoremove”%20command.
https://github.com/git-guides/install-git
https://age.apache.org/age-manual/master/intro/setup.html
https://www.postgresql.org/docs/current/install-procedure.html

Answer 2

Apache AGE only supports Postgres-11 and Postgres-12. You can follow the following to install Apache AGE with Postgres:
How to install AGE extension of postgresql from source code in ubuntu?

Answer 3

While Apache Age is designed to work with PostgreSQL 11 and 12, you can have multiple versions of PostgreSQL installed in your computer. However, the installations need to be in "different directories". Each version of PostgreSQL will have its own set of binaries and configuration files.
When you install multiple versions of PostgreSQL, it is important to ensure that each version is installed in a separate directory and that the ports used by each instance do not conflict with each other. Additionally, you may need to specify the correct version of PostgreSQL when running commands, by using the appropriate version-specific binary or setting the PATH environment variable to include the correct directory.