Linux: How to install DBD::Pg module? - perl

Question

Postgres DB is already installed. I'm not using system perl I have installed another perl in "/srv/data203806/Migration/CPAN/localperl/bin". When I'm trying to install, It is asking for PATH TO pg_config:
[root1#frmrszvwb023 bin]# ./cpan install DBD::Pg
Reading '/root/.cpan/Metadata'
Database was generated on Fri, 07 Mar 2014 03:53:02 GMT
Running install for module 'DBD::Pg'
Running make for T/TU/TURNSTEP/DBD-Pg-3.0.0.tar.gz
Checksum for /root/.cpan/sources/authors/id/T/TU/TURNSTEP/DBD-Pg-3.0.0.tar.gz ok
CPAN.pm: Building T/TU/TURNSTEP/DBD-Pg-3.0.0.tar.gz
Configuring DBD::Pg 3.0.0
Path to pg_config?
No POSTGRES_HOME defined, cannot find automatically
Warning: No success on command[/srv/data203806/MUXmh-Migration/CPAN/localperl/bin/perl Makefile.PL]
'YAML' not installed, will not store persistent state
TURNSTEP/DBD-Pg-3.0.0.tar.gz
/srv/data203806/MUXmh-Migration/CPAN/localperl/bin/perl Makefile.PL -- NOT OK
Running make test
Make had some problems, won't test
Running make install
Make had some problems, won't install
Could not read metadata file. Falling back to other methods to determine prerequisites
Please help me to install DBD::Pg? How to get path to pg_config?

Answer 1

Just ran into this issue, and on Ubuntu 16.04 Xenial the package you're looking for is:
apt-get install libdbd-pg-perl

Answer 2

You have to install libpq-dev, e.g. on Ubuntu:
sudo apt-get install libpq-dev

Answer 3

On CentOS/RH you can fix it by installing perl-DBD-Pg package with yum
sudo yum install perl-DBD-Pg

Answer 4

From the README:
INSTALLATION:
Before installing, please use the "cpansign -v" program to
cryptographically verify that your copy of DBD::Pg is complete and
valid. The program "cpansign" is part of Module::Signature, available
from CPAN.
By default Makefile.PL uses App::Info to find the location of the
PostgreSQL library and include directories. However, if you want to
control it yourself, define the environment variables POSTGRES_INCLUDE
and POSTGRES_LIB, or define just POSTGRES_HOME. Note that if you have
compiled PostgreSQL with SSL support, you must define the POSTGRES_LIB
environment variable and add "-lssl" and "-lcrypto" to it, like this:
export POSTGRES_LIB="/usr/local/pgsql/lib -lssl -lcrypto"
The usual steps to install DBD::Pg:
perl Makefile.PL
make
make test
make install
Do steps 1 to 2 as a normal user, not as root!
If the script cannot find the pg_config information itself, it will
ask you for the path to it. Enter the complete path to the pg_config
file here, including the name of the file itself.
If you want to use a module, read the documentation.

Answer 5

Before installing perl module, you must install client for accessing Postgres DB. I just install server and header files:
sudo apt-get install postgresql
sudo apt-get install libpq-dev

Answer 6

You can try:
locate pg_config
This will show something like:
/usr/pgsql-10/bin/pg_config
/usr/pgsql-10/include/ecpg_config.h
/usr/pgsql-10/include/ecpg_config_x86_64.h
Then run:
POSTGRES_HOME=/usr/pgsql-10 ./cpan install DBD::Pg
UPD
If you still encounter issues with pg_config, you may need to add it to your PATH, e.g.:
export PATH=$PATH:/usr/pgsql-x.x/bin
where x.x is your version, such as /usr/pgsql-9.2./bin.

Answer 7

Fedora 29, plenv, perl v5.18.0
Once I got plenv working, I was able to install DBD::Pg with cpanm using these commands:
sudo dnf install postgresql postgresql-devel
cpanm --quiet --notest DBD::Pg

Answer 8

For ArchLinux (or any Distro using Pacman):
pacman -S perl-dbd-pg

Answer 9

For my Ubuntu 22 worked this:
sudo apt install build-essential
sudo apt install cpanminus
sudo apt-get install -y postgresql-server-dev-all
sudo cpanm DBD::Pg