The source code can be found at https://github.com/apache/age
Install the following essential libraries according to each OS. Building AGE from source depends on the following Linux libraries (Ubuntu package names shown below):
yum install gcc glibc glib-common readline readline-devel zlib zlib-devel flex bison
dnf install gcc glibc bison flex readline readline-devel zlib zlib-devel
sudo apt-get install build-essential libreadline-dev zlib1g-dev flex bison
You will need to install a AGE compatible version of Postgres, for now AGE supports Postgres 11, 12, 13, 14 and 15.
You can download the Postgres source code and install your own instance of Postgres. You can read instructions on how to install from source code on the offical Postgres Website
You can use a package management that your OS provides to download AGE.
sudo apt install postgresql-server-dev-11
sudo apt install postgresql-12
Clone the github repository
Run the pg_config utility and check the version of PostgreSQL, currently, PostgreSQL versions from 11 up to 15 are supported. If you have any other version of postgres, you will need to install a PostgreSQL version from 11 to 15. Follow Setting up multiple versions of PostgreSQL
pg_config
The build process will attempt to use the first path in the PATH environment variable when installing AGE. If the pg_config path is located there, run the following command in the source code directory of Apache AGE to build and install the extension.
make install
If the path to your Postgres installation is not in the PATH variable, add the path in the arguments:
make PG_CONFIG=/path/to/postgres/bin/pg_config install
Install the intended version of PostgreSQL (11, 12, 13, 14 or 15).
Use the pg_config to check if it points to the intended version of PostgreSQL, if it does we will have to PGBINROOT. Open /usr/bin/pg_config in write mode (might require root previllages) and edit the PGBINROOT value
sudo vi /usr/bin/pg_config
By default PGBINROOT is set to /usr/lib/postsgresql , the directory which contains all the postgres versions. Change this to /usr/lib/postgresql/[intended version of postgres]
Check the PostgreSQL conf file of your PostgreSQL version to figure out which port its running on. The conf file is generally located in /etc/postgresql/[intended version of postgres]/main
vi /etc/postgresql/11/main/postgresql.conf
Check the PORT the particular version of PostgreSQL runs on by default.
Restart PostgreSQL
sudo service postgresql restart
Change user to postgres connect to the PostgreSQL server
sudo su - postgres psql --port PORT
After the installation, open a connection to a running instance of your database and run the CREATE EXTENSION command to have AGE be installed on the server.
CREATE EXTENSION age;
For every connection of AGE you start you will need to load the AGE extension.
LOAD 'age';
We recommend adding ag_catalog to your search_path to simplify your queries. The rest of this document will assume you have done so. If you do not, remember to add ‘ag_catalog’ to your cypher query function calls.
SET search_path = ag_catalog, "$user", public;
$libdir/plugins/ (see https://www.postgresql.org/docs/11/sql-load.html). A symlink can be created to allow non-superusers to LOAD the Apache AGE library:sudo ln -s /usr/lib/postgresql/11/lib/age.so /usr/lib/postgresql/11/lib/plugins/age.so
Replace
11with whatever version of postgres you are working on.
USAGE privileges on the ag_catalog schema (example for user db_user):GRANT USAGE ON SCHEMA ag_catalog TO db_user;