Non-Relational Postgres

Postgres has always had strong support for relational storage. However, there are many cases where relational storage is either inefficient or overly restrictive. This talk shows the many ways that Postgres has expanded to support non-relational storage, specifically the ability to store and index multiple values, even unrelated ones, in a single database field. Such storage allows for greater efficiency and access simplicity, and can also avoid the negatives of entity-attribute-value (eav) storage. The talk will cover many examples of multiple-value-per-field storage, including arrays, range types, geometry, full text search, xml, json, and records.

Kubernetes crash course for Postgres DBAs

Kubernetes is the new way of deploying software, programmatically, on almost any infrastructure (be it cloud or on-prem). But is a complex beast. How to get started? How to dive deeper? What are the specific best-practices and special hints for Postgres DBAs dealing with Kubernetes? Join this half-day tutorial to learn, practically, among other topics:

• How to quickly get started with Kubernetes
• Manage storage
• Manage services, networking and ingress/egress
• How to make Postgres cloud-native in Kubernetes
• Do a show-run of existing Postgres operators, including Zalando, CrunchyData and StackGres.

This tutorial is very practical. BYOL! (Bring Your Own Laptop). With Kubernetes installed! (check microk8s, minikube or k3s if you don’t have any installed.

Уровни изоляции транзакций в постгресе

Про уровни изоляции транзакций обычно все что-то слышали, но, как ни странно, мало кто может внятно рассказать, что же это такое и зачем надо, в то же время для многих операций ясное понимание того, что под этим подразумевается и как это влияет на результат может быть весьма значительным. В самом деле, если клиенту выплатили двойную сумму и перед программистом встает перспектива личного возмещения нанесенных убытков, то вряд ли тогда этот параметр покажется таким уж маловажным.

Тому, как этого избежать, и посвящен этот доклад.

The performance problems related migrations from PL/SQL to PL/pgSQL

Porting applications from Oracle to Postgres is common work today. Unfortunately it is not without problems. In presentation I'll try to show the basic performance problems related to differences between Oracle and Postgres and PL/SQL and PL/pgSQL.