PgDay Paris https://fightforinfo.com/c/16445bc9-1832-4623-9509-b45607e1cca8@aperi.tube/videos Tue, 10 Nov 2026 19:04:43 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://fightforinfo.com PgDay Paris https://fightforinfo.com/lazy-static/avatars/e6d0b1b5-2847-4047-a2ea-8b13a2c5ee00.png https://fightforinfo.com/c/16445bc9-1832-4623-9509-b45607e1cca8@aperi.tube/videos All rights reserved, unless otherwise specified in the terms specified at https://fightforinfo.com/about and potential licenses granted by each content's rightholder. <![CDATA[Large Databases, Lots of Servers, on Premises, in the Cloud - Get Them All! — Flavio Gurgel]]> https://fightforinfo.com/w/hvqmdiJGaBT7hU5951PgqM https://fightforinfo.com/w/hvqmdiJGaBT7hU5951PgqM Mon, 23 Dec 2019 17:30:41 GMT This talk is an overview of the leboncoin's real infrastructure and how we manage PostgreSQL to be webscale as the database of choice of the 5th most accessed web site in France:

  • handling tens of databases and servers using automation
  • guaranteeing availability at the network and database levels
  • distributing charge amongst servers
  • taking backups of multi-terabyte databases
  • monitoring and alerting tools
  • moving data between databases
  • low to (almost) zero downtime version upgrades
  • deploying DDL
  • move to the cloud? When, what and why
  • the impact of GDPR in database operations
  • the impact of recent PostgreSQL versions features like logical replication and parallel query
  • incidents? Well, that happens...
  • when the NoSQL talk arrives

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2376-large-databases-lots-of-servers-on-premises-on-the-cloud-get-them-all/

]]> PgDay Paris Science & Technology nonadult Large Databases, Lots of Servers, on Premises, in the Cloud - Get Them All! — Flavio Gurgel This talk is an overview of the leboncoin's real infrastructure and how we manage PostgreSQL to be webscale as the database of choice of the 5th most accessed web site in France: handling tens of databases and servers using automation, guar... <![CDATA[Bitemporality in PostgreSQL: Update Your Data Without Losing Information — Miroslav Šedivý]]> https://fightforinfo.com/w/sQiqDhBAgj8tAnBAKx9s1H https://fightforinfo.com/w/sQiqDhBAgj8tAnBAKx9s1H Mon, 23 Dec 2019 16:13:24 GMT So you finally have your database model for your application and you fill it in with current data. How do you keep it up to date? While INSERT may still be transparent, UPDATE and DELETE will overwrite your previous data, so you won't be able to reproduce them. Cloning the whole huge content for each minor update is not an option. For rich and complex data about hundreds of thousands of power generators in Germany and worldwide, I built a model using range data types in recent PostgreSQL which allows me to insert, update and delete data while granting the full access to the whole state of the database at any historical moment. I'll present a very simplified version of the database so the audience will be immediately able to apply it for their cases. I'll also show a few tricks in Python and Psycopg2 that will allow a whole team to prepare, review, and deploy all revisions to this database without merge conflicts. And I'll give a few ideas on how to retrieve this data efficiently.

]]> PgDay Paris Science & Technology nonadult Bitemporality in PostgreSQL: Update Your Data Without Losing Information — Miroslav Šedivý So you finally have your database model for your application and you fill it in with current data. How do you keep it up to date? While INSERT may still be transparent, UPDATE and DELETE will overwrite your previous data, so you won't be able to r... <![CDATA[PostgreSQL As Data Integration Tool — Stefanie Janine Stölting]]> https://fightforinfo.com/w/aPbhdUnQ5s7qeJ4Eh4eu5q https://fightforinfo.com/w/aPbhdUnQ5s7qeJ4Eh4eu5q Mon, 23 Dec 2019 14:47:26 GMT Instead of using ETL Tools, which consume tons of memory on their own system, you will learn how to do ETL jobs directly in and with a database. The PostgreSQL implementation of the the standard ISO/IEC 9075-9:2016, Management of External Data (SQL/MED), is also known as Foreign Data Wrapper (FDW). With Foreign Data Wrapper, there is nearly no limit of external data, that you could use directly inside a PostgreSQL database.

The talk will walk you through the definition of Foreign Data Wrapper as implemented in PostgreSQL. In the second part of the talk you will see how this technology does work shown by examples with several data sources.

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2349-postgresql-as-data-integration-tool/

]]> PgDay Paris Science & Technology nonadult PostgreSQL As Data Integration Tool — Stefanie Janine Stölting Instead of using ETL Tools, which consume tons of memory on their own system, you will learn how to do ETL jobs directly in and with a database. The PostgreSQL implementation of the the standard ISO/IEC 9075-9:2016, Management of External Data (SQ... <![CDATA[Breaking PostgreSQL at Scale — Christophe Pettus]]> https://fightforinfo.com/w/mGiDjSvTyk5DkSLpnveD4Q https://fightforinfo.com/w/mGiDjSvTyk5DkSLpnveD4Q Mon, 23 Dec 2019 13:38:14 GMT Database systems don't just slow down in a clear, linear way. They reach a certain point and start failing, often very suddenly and surprisingly.

This talk is about some of the most common scaling "discontinuities" in PostgreSQL, and how to plan for them and mitigate them. Why is SERIAL a bad primary key on high-insert-rate tables? What happens when autovacuum can't keep up? How do you know you don't have enough memory for your queries? What happens when a query that worked just fine before suddenly has a horrible plan?

Drawn from real-life examples, we'll go over these and show how to fix them… and avoid them in the first place.

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2369-breaking-postgresql-at-scale/

]]> PgDay Paris Science & Technology nonadult Breaking PostgreSQL at Scale — Christophe Pettus Database systems don't just slow down in a clear, linear way. They reach a certain point and start failing, often very suddenly and surprisingly. This talk is about some of the most common scaling "discontinuities" in PostgreSQL, and how to pla... <![CDATA[Don't Forget Materialized Views — Stéphanie Baltus]]> https://fightforinfo.com/w/2MyGZqXAAoGxJns22VzPH2 https://fightforinfo.com/w/2MyGZqXAAoGxJns22VzPH2 Mon, 23 Dec 2019 12:54:37 GMT When exposing data to an user interface, we often find ourselves needing to speed up the response time. PostgreSQL offers plenty of solutions for that such as different types of indexes, parallel queries and so on. But since the 9.3 version, PostgreSQL also provides a nice feature: the materialized views. Easy to setup and maintain, they are often the best choice when it comes to caching a resultset. In this talk you will learn how to get the most of materialized views, understand their behaviour and then know how to use them wisely.

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2398-dont-forget-the-materialized-views/

]]> PgDay Paris Science & Technology nonadult Don't Forget Materialized Views — Stéphanie Baltus When exposing data to an user interface, we often find ourselves needing to speed up the response time. PostgreSQL offers plenty of solutions for that such as different types of indexes, parallel queries and so on. But since the 9.3 version, Postg... <![CDATA[Be Inclusive: Welcome Non-Key Columns in B-Tree Indexes — Markus Winand]]> https://fightforinfo.com/w/iJLYNAN2eFsPRKqamzdkcx https://fightforinfo.com/w/iJLYNAN2eFsPRKqamzdkcx Mon, 23 Dec 2019 11:46:54 GMT PostgreSQL 11 introduced the INCLUDE clause for b-tree indexes. The main intention of this clause is to enable Index Only Scans without including selected columns into the index key. But the INCLUDE clause has many other interesting capabilities that might be even more useful than the support of Index Only Scans.

This talk gives you a brief introduction into b-tree indexes, Index Only Scans and what the INCLUDE clause does. It demonstrates where cases the INCLUDE clause can be beneficial and discusses a few more subtle benefits that are not commonly known. Finally, the talk also shows the limits of the INCLUDE clause in PostgreSQL 11.

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2361-be-inclusive-welcome-non-key-columns-in-b-tree-indexes/

]]> PgDay Paris Science & Technology nonadult Be Inclusive: Welcome Non-Key Columns in B-Tree Indexes — Markus Winand PostgreSQL 11 introduced the INCLUDE clause for b-tree indexes. The main intention of this clause is to enable Index Only Scans without including selected columns into the index key. But the INCLUDE clause has many other interesting capabilities t... <![CDATA[How to Write SQL Queries — Dimitri Fontaine]]> https://fightforinfo.com/w/rrPM9ZBH6ffG4iUxMLQgmi https://fightforinfo.com/w/rrPM9ZBH6ffG4iUxMLQgmi Mon, 23 Dec 2019 10:07:26 GMT Most of the time we see finished SQL queries, either in code repositories, blog posts of talk slides. This talk focus on the process of how to write an SQL query, from a problem statement expressed in English to code review and long term maintenance of SQL code.

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2306-how-to-write-an-sql-query/

]]> PgDay Paris Science & Technology nonadult How to Write SQL Queries — Dimitri Fontaine Most of the time we see finished SQL queries, either in code repositories, blog posts of talk slides. This talk focus on the process of how to write an SQL query, from a problem statement expressed in English to code review and long term maintenan... <![CDATA[So You’ll be Working With (women or other under-represented groups) Other People! — Renee Phillips]]> https://fightforinfo.com/w/28HHpozarD2LE6T219NqjN https://fightforinfo.com/w/28HHpozarD2LE6T219NqjN Mon, 23 Dec 2019 08:53:02 GMT An introduction to the tools, sites, and concepts available to aid in working with people from a variety of backgrounds. This talk will include some sociology and some global statistics. While not Postgres specific, this talk addresses the impact of having homogeneous work teams, and of having people flee the workspace due to discomfort.

https://www.postgresql.eu/events/pgdayparis2019/schedule/session/2401-so-youll-be-working-with-delwomen-or-other-under-represented-groupsdel-other-people/

]]> PgDay Paris Science & Technology nonadult So You’ll be Working With (women or other under-represented groups) Other People! — Renee Phillips An introduction to the tools, sites, and concepts available to aid in working with people from a variety of backgrounds. This talk will include some sociology and some global statistics. While not Postgres specific, this talk addresses the impact ... <![CDATA[pgDay Paris 2019]]> https://fightforinfo.com/w/2A3snKKKeGuy7mKsjYNuqq https://fightforinfo.com/w/2A3snKKKeGuy7mKsjYNuqq Mon, 23 Dec 2019 08:29:30 GMT A look back at pgDay Paris 2019.

]]> PgDay Paris Science & Technology nonadult pgDay Paris 2019 A look back at pgDay Paris 2019. <![CDATA[Demystifying Contributing to PostgreSQL - Lætitia Avrot]]> https://fightforinfo.com/w/p8zuzBcofQoeMbNAoW49K8 https://fightforinfo.com/w/p8zuzBcofQoeMbNAoW49K8 Sat, 02 Mar 2019 12:41:40 GMT PostgreSQL is a great community. They are open-minded, friendly, agreeable and so on. You feel like helping them.

The problem is you are shy and you look at community people as gods. On top of that you don't want to mess up with their work or bother them with obvious and silly (to them) questions!

This conference talk is based on my own true story. I will tell you about how I submitted my very first patch to the community. After some background presentation about how the community works, I will try to answer the following questions:

  • What can I do to help (and you'll see that even without coding you can do a lot!)?
  • What's a contribution?
  • What's a patch? How can I create one?

And I hope that sooner or later you'll come and join the community and you'll feel so proud of yourselves!

]]> PgDay Paris Science & Technology nonadult Demystifying Contributing to PostgreSQL - Lætitia Avrot PostgreSQL is a great community. They are open-minded, friendly, agreeable and so on. You feel like helping them. The problem is you are shy and you look at community people as gods. On top of that you don't want to mess up with their work or b... <![CDATA[DBA Appreciation Day - Stéphane Schildknecht]]> https://fightforinfo.com/w/4T6qcemaiUKf1uov15YcjQ https://fightforinfo.com/w/4T6qcemaiUKf1uov15YcjQ Sat, 02 Mar 2019 12:41:40 GMT PgDay Paris Science & Technology nonadult DBA Appreciation Day - Stéphane Schildknecht <![CDATA[Triggers - Friends to Handle With Care - Charles Clavadetscher]]> https://fightforinfo.com/w/pMfySEC8r9E7AKogfKuMsh https://fightforinfo.com/w/pMfySEC8r9E7AKogfKuMsh Sat, 02 Feb 2019 12:45:30 GMT The discussion on triggers, their usage and helpfulness in a database, similarly to functions, tend to polarize experts. Some find them evil, others, the solution for almost all problems. On a closer look, arguments in favor or against them basically converge on topics that are more fundamental than triggers themselves, such as bad programming practices or missing knowledge on the way they are executed and how they relate to SQL.

In this talk you will get an introduction on the creation and management of triggers in PostgreSQL and an overview of best practices, potential pitfalls as well as some insights on using them in combination with other features. Some knowledge of plpgsql is an advantage but not a killer criterium for attending the talk.

]]> PgDay Paris Science & Technology nonadult Triggers - Friends to Handle With Care - Charles Clavadetscher The discussion on triggers, their usage and helpfulness in a database, similarly to functions, tend to polarize experts. Some find them evil, others, the solution for almost all problems. On a closer look, arguments in favor or against them basica... <![CDATA[Postgres Women - Lætitia Avrot & Louise Grandjonc]]> https://fightforinfo.com/w/kuQG7fhmJAUMtmjygDdZL4 https://fightforinfo.com/w/kuQG7fhmJAUMtmjygDdZL4 Sat, 02 Feb 2019 12:45:30 GMT PgDay Paris Science & Technology nonadult Postgres Women - Lætitia Avrot & Louise Grandjonc <![CDATA[Herd of Containers - Saâd Dif]]> https://fightforinfo.com/w/vaxay8pamXh1oJomu3T2Tx https://fightforinfo.com/w/vaxay8pamXh1oJomu3T2Tx Sat, 02 Feb 2019 12:43:30 GMT With a community of over 40 million members, BlaBlaCar has to scale and automate its platform continuously to keep it fast and reliable. Two years ago year, the foundations team at BlaBlaCar has decided to optimize the core infrastructure by going all-in on containers. Now we have been running all our production services with rkt and CoreOS for several months. This talk is about how BlaBlaCar changed the PostgreSQL default topology to make a node expendable in a containerized environment.

Subjects: Service Discovery - Containers (rkt) - Multi Master Logical Replication (BDR) - Monitoring and alerting with Prometheus - Backup and Recovery

]]> PgDay Paris Science & Technology nonadult Herd of Containers - Saâd Dif With a community of over 40 million members, BlaBlaCar has to scale and automate its platform continuously to keep it fast and reliable. Two years ago year, the foundations team at BlaBlaCar has decided to optimize the core infrastructure by going... <![CDATA[Constraints - a Developer's Secret Weapon - Will Leinweber]]> https://fightforinfo.com/w/cbFXgCiyNXZsh25hVWqsaV https://fightforinfo.com/w/cbFXgCiyNXZsh25hVWqsaV Sat, 02 Feb 2019 12:39:30 GMT Of all my regrets while building database-backed applications, not fully embracing database constraints sooner is one of the bigger ones. For far too long, I treated the db as little more than a dumb key-value store with joins.

Strong constraints turn your database into the last line of defense against bad data. Applications change several orders of magnitude more often than db schemas, and each change is a chance for corruption.

Constraints in Postgres come in many forms, from literally using the CONSTRAINT keyword to a large choice of datatypes. You'll come away from this talk understanding the pros and cons of type of constraint, and be ready to transform your application into a safer and more resilient system.

]]> PgDay Paris Science & Technology nonadult Constraints - a Developer's Secret Weapon - Will Leinweber Of all my regrets while building database-backed applications, not fully embracing database constraints sooner is one of the bigger ones. For far too long, I treated the db as little more than a dumb key-value store with joins. Strong constrain... <![CDATA[Change Data Capture for a Brand New World - Hannu Valtonen]]> https://fightforinfo.com/w/5rsXLwx9zH4TK6m7kL1Q5F https://fightforinfo.com/w/5rsXLwx9zH4TK6m7kL1Q5F Sat, 02 Feb 2019 12:35:30 GMT ow that you've stored your data into the database… you're done with it right? No.

Typically storing data into your database is only the beginning of its journey through your company's systems.

There's often a need to act on the data: from providing the service the customer actually wanted to sending emails to to doing complex data analytics on the data. PostgreSQL's logical replication features have made it much easier to do change data capture than ever before.

Change Data Capture allows you to easily act on the data that you store in your database. In this talk we'll go through the latest developments in the CDC landscape from a PostgreSQL point of view.

]]> PgDay Paris Science & Technology nonadult Change Data Capture for a Brand New World - Hannu Valtonen ow that you've stored your data into the database… you're done with it right? No. Typically storing data into your database is only the beginning of its journey through your company's systems. There's often a need to act on the data: from pr... <![CDATA[Being a Better Developer With EXPLAIN - Louise Grandjonc]]> https://fightforinfo.com/w/g3EdcmUciPf9Vq1zqgBd32 https://fightforinfo.com/w/g3EdcmUciPf9Vq1zqgBd32 Sat, 02 Feb 2019 12:32:30 GMT Developers use ORMs and here the question is not "is it good or bad" nor is it to convince them to rewrite years of technical debt but to show them that queries can be optimized by understanding what is happening behind their code.

So any developer at the end of the talk should be able to:

  • know where to find the queries executed by the ORMs
  • understand the different algorithm of filtering, sorting and joining.

So basically, understand the output of a simple EXPLAIN.

]]> PgDay Paris Science & Technology nonadult Being a Better Developer With EXPLAIN - Louise Grandjonc Developers use ORMs and here the question is not "is it good or bad" nor is it to convince them to rewrite years of technical debt but to show them that queries can be optimized by understanding what is happening behind their code. So any devel... <![CDATA[A Look at the Elephant's Trunk - PostgreSQL 11 - Magnus Hagander]]> https://fightforinfo.com/w/fCpaZjToSdtYieVMpCrPtN https://fightforinfo.com/w/fCpaZjToSdtYieVMpCrPtN Sat, 02 Feb 2019 12:29:30 GMT PostgreSQL 11 is not done yet. In fact, most people have not upgraded to 10 yet! But many of the things that will be in the next version, targeted for release later in 2018, are already done. This talk will outline some of the bigger and more interesting features to look forward to!

]]> PgDay Paris Science & Technology nonadult A Look at the Elephant's Trunk - PostgreSQL 11 - Magnus Hagander PostgreSQL 11 is not done yet. In fact, most people have not upgraded to 10 yet! But many of the things that will be in the next version, targeted for release later in 2018, are already done. This talk will outline some of the bigger and more inte... <![CDATA[A Distributed Geospatial Time Series Database - Marco Slot]]> https://fightforinfo.com/w/9ibJKD4379dSRpgHcUeJ1D https://fightforinfo.com/w/9ibJKD4379dSRpgHcUeJ1D Sat, 02 Feb 2019 12:28:30 GMT PgDay Paris Science & Technology nonadult A Distributed Geospatial Time Series Database - Marco Slot