PDXPUG June Meetup: Accessing Postgres with Java

When: 6-8pm Thursday June 20, 2019
Where: PSU Business Accelerator (Parking is open after 5pm.)
Who: Will McLean

To follow the presentations on accessing Postgres from Python and Scala, I will lead a discussion on accessing Postgres with Java. I’ll start with a jdbc tutorial and finish with adding data access to a springboot webapp.

I have twenty years experience in e-commerce applications, the last eight here in Portland, mostly at Nike.For the last few years everything has been moving to Amazon RDS Postgres, that’s a trend pdxpug can get behind!  I am currently working for Navis on CRM applications for the hospitality industry.


May 16 2019 Meetup

When: 6-8pm Thursday May 16, 2019
Where: PSU Business Accelerator (Parking is open after 5pm.)
Who: Mark Wong
What: Disaster Recovery and High Availability Planning

Learn about the considerations in planning for disaster recovery in order to maintain business continuity. There are solutions available that can help you achieve your backup and recovery objectives by taking advantage of PostgreSQL features, such as point-in-time recovery, and help implement retention policies.

Also learn how to take advantage of PostgreSQL’s replication features to keep your database highly-available, and the basic cluster architectures to consider to keep a PostgreSQL cluster up and running.

Mark works at 2ndQuadrant as a consultant for English Speaking Territories, based out of Oregon. He is a Contributor to PostgreSQL, co-organizer of the Portland PostgreSQL User Group, and serves as a Director and Treasurer for the United States PostgreSQL Association.

PDXPUG April Meetup: Postgres with non-blocking IO and Scala

2019 April 18th Meeting 6pm-8pm


PSU Business Accelerator
2828 SW Corbett Ave · Portland, OR
Parking is open after 5pm.

Speaker: Grant Holly

This month I will be demonstrating using non-blocking IO database access using Scala and the Slick library.  No really, the library is called Slick AND it is very cool to use.  Slick and Scala are great for working with Postgres with either straight SQL, or using the FRM (that’s a Functional Relation Mapper like in functional programming).  After Hannah gave a great talk talk about Python, Postgres, and ORMs, I got to thinking that I could do a language and ORM talk.  Thanks Hannah, that was great.


Hi, it’s me still Grant.  I work at New Relic as an engineer on the database engineering team.  I’ve been using Postgres in production since 9.2 and have been using and enjoying Scala for about two years having worked on a couple of production high throughput applications.

PDXPUG: March Meetup: Let’s talk databases in python!

2019 March 21 Meeting 6pm-8pm


PSU Business Accelerator
2828 SW Corbett Ave · Portland, OR
Parking is open after 5pm.

Speaker: Hannah Stepanek

Let’s talk databases in python! What’s an ORM? Is there a way to write database queries so that they are compatible with multiple types of databases? How do you make database changes (such as adding a new table or a new column) safely? What is a connection pool and why is it useful? What are some things that can go wrong when operating at scale? In this talk we’ll take a deep dive into how the python libraries sqlalchemy and alembic make managing production databases simple, efficient, and painless so you can get back to feature development.
Hannah has been working in industry for over 6 years as a python software engineer. She currently works at Hypothesis, a web application for annotating web pages and pdfs. In her spare time she enjoys riding her horse Sophie and playing board games.

PDXPUG: February Meetup: Temporal Databases: Theory and Postgres

2019 February 21 Meeting 6pm-8pm (Note: Back to third Thursday this month!)


PSU Business Accelerator
2828 SW Corbett Ave · Portland, OR
Parking is open after 5pm.

Speaker: Paul Jungwirth

Temporal databases let you record history: either a history of the database (what the table used to say), a history of the thing itself (what it used to be), or both at once. The theory of temporal databases goes back to the 90s, but standardization has only just begun with some modest recommendations in SQL:2011, and database products (including Postgres) are still missing major functionality.

This talk will cover how temporal tables are structured, how they are queried and updated, what SQL:2011 offers (and doesn’t), what functionality Postgres has already, and what remains to be built.

Paul started programming on a Tandy 1000 at age 8 and hasn’t been able to stop since. He helped build one of the Mac’s first web servers in 1994 and has founded software companies in politics and technical hiring. He works as an independent consultant specializing in Rails, Postgres, and Chef.

January 2019 meetup and new location

When: 6-8pm Thursday January 24, 2018
Where: New Relic
Who: Mark Wong
What: Multi master replication

Happy new year everyone.  As always the new year brings changes.  For instance, we are moving meetup locations.  We will be meeting at PDX Code Guild (https://pdxcodeguild.com/contact_pdx_code_guild/).  They are located at the Business Accelerator at 2828 SW Corbett Ave (https://www.google.com/maps?q=2828+SW+Corbett+Ave,+Number+208+Portland,+OR+97201).  I think you will find the new accommodations quite nice.  And while the location may have changed, some things have not.  We will still have food and beverages available and interesting topics of discussion with other interesting people.

Mark Wong will be giving a talk on the always-vexing topic of multi-master replication with Postgres.

Mark leads the 2ndQuadrant performance practice as a Performance Consultant for English Speaking Territories, based out of Oregon in the USA. He is a long time Contributor to PostgreSQL, co-organizer of the Portland PostgreSQL User Group, and serves as a Director and Treasurer
for the United States PostgreSQL Association, and a pretty nice guy too.

If you have a job posting or event you would like me to announce at the meeting, please send it along. The deadline for inclusion is 5pm the day before the meeting.

Our meeting will be held at New Relic on the 27th floor of the US Bancorp Tower at 111 SW 5th (5th & Oak). It’s right on the Green & Yellow Max lines. Underground bike parking is available in the parking garage; outdoors all around the block in the usual spots. No bikes in the office, sorry! Please the elevator to the 27th floor.  It will be the last elevator bank on the North side of the building. There will be a front desk where you can sign in.

Thanks to everyone for PostgreSQL Day 2018

Thanks again everyone for a great day of presentations and discussion.

First, to our volunteers Michelle, Erik, and Mary Anne: you guys helped make this day possible.  Second, to our sponsors 2nd Quadrant (https://www.2ndquadrant.com/en/), PGExperts (https://pgexperts.com/): thanks for refreshments and support of the conference.  Thanks to Portland State University School of Computer Science for providing us a wonderful space.  Lastly, a huge ‘thanks a ton’ to Mark Wong for helping organize all of us and leading.

As we get in touch with speakers, we will post links here to any slides sample code here.

Grant Holly – What’s new in PostgreSQL 11 (https://github.com/grantholly/postgres_day_2018)