I'm going to demonstrate how it is possible to use dblink in Greenplum 188.8.131.52
The Italian PGDay 2011 will take place in Prato, on Friday November 25th, at the Monash University Prato Centre. Exactly, where it all started.The event, organised by the Italian PostgreSQL Users Group, will be a great chance for both Italian and European members of the PostgreSQL community to gather together and to promote PostgreSQL.
In this article we are going to show you how to write PL/Java functions in Greenplum.
I assume that you have a working Greenplum (or Greenplum Community Edition) at your disposal. In this example we will use version **4.0.4**, installed in /usr/local/greenplum-db-184.108.40.206 (which is the default location).
hen working with databases, one of the most common task is to load data from one or more CSV files.
Several tools are available to achieve this task. Some are executed via command line, like COPY (using psql), some are more complex, like ETL systems.
We will start today with Talend but, in the next weeks, we will proceed with Kettle (Pentaho Data Integration).
[*MADlib*](http://madlib.net) is an open-source library for scalable in-database analytics which targets the PostgreSQL and the Greenplum databases.
MADlib version 0.2beta needs to be installed properly to follow this article, so we encourage you to read the [official documentation](https://github.com/madlib/madlib/wiki/Installation-Guide-%28v0.2beta%29) to install it in a Greenplum database.
I'm going to show you how to perform Association Rules using MADlib and Greenplum.
Because of PostgreSQL Conference Europe I had to reschedule the German trainings.The next upcoming training will be the 4-Days Administration, Performance, Streaming Replication Training.There are still a few seats left.Schedule: 2011 October 7 - 10Location: BielefeldCome to the nice East-Westphalia town and join our training.Register now!Detailed informations in German you will find in our flyer:http://www.2ndquadrant.de/img/10Feel free to contact us and ask for more details:
Greenplum Community Edition is available in different flavours, including a VMWare virtual machine based on CentOS with all the fancy tools and the documentation already installed. This allows you to easily try and evaluate this powerful platform for data warehousing.
[Greg Smith from our 2ndQuadrant team, recently explained how to install this image on Linux](http://www.greenplum.com/community/forums/showthread.php?486-Getting-Started-with-VMWare-on-Linux).
This article will guide you through the installation of this image - specifically prepared for VMWare - on VirtualBox, by giving those users the opportunity to easily test and evaluate Greenplum on VirtualBox.
Picking back up this week's theme of
where you can publicize your PostgreSQL related project at, you're
probably reading this blog entry because it appeared on the Planet PostgreSQL blog aggregator. There
are "Planet" feeds around many open-source projects. The Debian and GNOME
ones spawned off the Planet software, which now powers a ton of other
blogs such as the the well regarded Planet
Python. Occasionally you'll find general open-source database news
posted both here and on Planet MySQL. And I
used to read Planet CentOS back when I used
to care if they'd ever release CentOS 6.
Planet PostgreSQL has been around since
about seven years ago, when Devrim Gündüz first made the service
available on one of his servers. Like many good open-source
projects, it has some history
the Community Edition
install it and start testing it.
One of the coolest features that Greenplum offers to Data warehousing
and Business Intelligence operators as far as ETL
is concerned, is the combination of read only external tables
with gpfdist, Greenplum's parallel file distribution server.
The typical use case for this solution is parallel data loading of text files
(coming from etherogeneous sources - databases or applications) into a Greenplum
data warehouse. For those of you who want to know more about Greenplum, I suggest that
you visit the