PL/Swift Installation

PL/Swift should install fine on pretty much any Unix system that can run PostgreSQL. Including exotic setups like Raspberry Pi systems.

We also provide a macOS Homebrew tap which makes it really easy to install PL/Swift and its dependencies on macOS. We highly recommend that over a custom install.

On the Linux side we test w/ Ubuntu Trusty and Xenial, though it should work pretty much anywhere.

Install on macOS using Homebrew

Got no Homebrew? Get it!

Then add the PL/Swift tap and install plswift:

brew tap PL-Swift/plswift
brew install plswift

Install using Docker

There is also a Docker image w/ Swift, PostgreSQL and PL/Swift.

Simply run it using:

docker run --rm -it --name plswift helje5/swift-pgdev /bin/bash

You may want to expose the PG port (-p, or not.

Within the image, start PostgreSQL (swift user pwd is just swift):

sudo /etc/init.d/postgresql start
swift pl validate

And you are good. The image contains Emacs, Swift, PL/Swift, psql, and all the other stuff you need to play.

Install on Linux (or macOS w/o Homebrew)

On macOS: We strongly advise that you rather use Homebrew, more importantly the Apache provided by Homebrew.

Ubuntu packages required (assuming you have Swift installed already):

sudo apt-get update
sudo apt-get install \
   curl pkg-config postgresql libpq-dev postgresql-server-dev-all

Install PL/Swift:

curl -L -o plswift.tgz \
tar zxf plswift.tgz && cd PLSwift-0.5.1
sudo make install

That puts PL/Swift into /usr/local. If you want to have it in /usr, do:

sudo make prefix=/usr install

Check whether the installation is OK

You can call swift pl validate to make sure the installation is OK:

The Swift PostgreSQL build environment looks sound.

  srcroot:   /Users/helge
  module:    helge
  config:    debug
  product:   /Users/helge/.build/
  pg_config: /usr/local/bin/pg_config
  moddir:    /usr/local/lib/postgresql
  extdir:    /usr/local/share/postgresql/extension/
  PL/Swift:  /usr/local
  swift:     5.0.1
  tools:     5.0

ERROR: Missing extension control file: PLSwift.control
ERROR: Missing setup file:

(you can ignore the ERRORs at the bottom, they are only relevant within extensions)


If something isn't working in a Homebrew setup, check whether:

brew doctor

outputs anything unusual.

Sometimes, you may have both, PostgreSQL binaries via Homebrew, and for example the This can result in such:

    helge=# CREATE EXTENSION "hello";
    ERROR:  incompatible library "/Applications/": version mismatch
    DETAIL:  Server is version 9.4, library is version 10.0.

Here, is at 9.4, while Brew already has PostgreSQL 10 and hence produces a conflict. When you run into this, it is probably easiest to link /usr/local/bin/pg_config to the one you want to use. For example:

ln -sf `which pg_config` /usr/local/bin/pg_config

and reinstall plswift:

brew reinstall plswift

Recompile/reinstall the extension and all should be good.

Finding Help

If you need any help, feel free to ask on the Mailing List or our Slack channel.