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AMQP Support for Postgres

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pg_amqp 0.3.0

The pg_amqp package provides the ability for postgres statements to directly publish messages to an AMQP broker.


To build pg_amqp, just do this:

make install

If you encounter an error such as:

"Makefile", line 8: Need an operator

You need to use GNU make, which may well be installed on your system as gmake:

gmake install

If you encounter an error such as:

make: pg_config: Command not found

Be sure that you have pg_config installed and in your path. If you used a package management system such as RPM to install PostgreSQL, be sure that the -devel package is also installed. If necessary tell the build process where to find it:

env PG_CONFIG=/path/to/pg_config make && make install

Some prepackaged Mac installs of postgres might need a little coaxing with modern XCodes. If you encounter an error such as:

make: /Applications/ No such file or directory

Then you'll need to link the toolchain

sudo ln -s /Applications/ /Applications/

And if you encounter an error about a missing /usr/bin/postgres:

ld: file not found: /usr/bin/postgres

You might need to link in your real postgres:

sudo ln -s /usr/bin/postgres_real /usr/bin/postgres


Once amqp is installed, you can add it to a database. Add this line to your postgresql config

shared_preload_libraries = ''

Then, If you're running PostgreSQL 9.1.0 or greater, loading amqp is as simple as connecting to a database as a super user and running:


If you've upgraded your cluster to PostgreSQL 9.1 and already had amqp installed, you can upgrade it to a properly packaged extension with:

CREATE EXTENSION amqp FROM unpackaged;

For versions of PostgreSQL less than 9.1.0, you'll need to run the installation script:

psql -d mydb -f /path/to/pgsql/share/contrib/amqp.sql


Insert AMQP broker information (host/port/user/pass) into the table.

A process starts and connects to PostgreSQL and runs:

SELECT amqp.publish(broker_id, '', 'foo', 'message');

Upon process termination, all broker connections will be torn down. If there is a need to disconnect from a specific broker, one can call:

select amqp.disconnect(broker_id);

which will disconnect from the broker if it is connected and do nothing if it is already disconnected.

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