PostgreSQL Archives - 2ndQuadrant

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PostgreSQL 12: Partitioning is now faster

September 17, 2019/0 Comments/in 2ndQuadrant, David's PlanetPostgreSQL /by David Rowley

Table partitioning has been evolving since the feature was added to PostgreSQL in version 10. Version 11 saw some vast improvements, as I mentioned in a previous blog post. During the PostgreSQL 12 development cycle, there was a big focus on scaling partitioning to make it not only perform better, but perform better with a […]

Webinar: Business Intelligence with Window Functions in PostgreSQL [Follow up]

August 29, 2019/0 Comments/in PostgreSQL, Webinars /by Bilal Ibrar

Window functions are a very useful tool; and since their introduction 10 years ago, they have been gradually adopted for various use cases where a simple aggregation is not flexible enough: for example incremental totals, moving averages, etc. The latest features introduced in PostgreSQL complete the implementation according to the SQL:2011 standard, adding capabilities such […]

Developing on many versions of PostgreSQL at once

August 19, 2019/0 Comments/in Craig's PlanetPostgreSQL /by craig.ringer

In a developer’s ideal world there’s only one stable and one development version of the product. Everyone updates immediately to the next stable version and nobody cares about anything older. As far as I can tell this has never actually happened, ever, in the history of anything. Working on many versions PostgreSQL is a mature […]

PostgreSQL: Regular expressions and pattern matching

July 31, 2019/0 Comments/in Haroon's PlanetPostgreSQL /by Muhammad Haroon

A regular expression is a special text string used to describe a search pattern. PostgreSQL’s regular expressions supports three separate approaches to pattern matching: POSIX-style regular expressions (BREs and EREs) SIMILAR TO operator added in SQL:1999 SQL LIKE operator There are some more advanced techniques for advanced pattern matching requirements but those will very likely […]

Webinar: Postgres Vacuuming Through Pictures [Follow up]

July 25, 2019/0 Comments/in Liaqat's PlanetPostgreSQL, Webinars /by Liaqat Andrabi

Vacuuming is a key feature of PostgreSQL databases to keep databases healthy and optimized. For this, Autovacuum is configured to conserve space by removing obsolete disk usage, and to optimize database performance by speeding up sequential scans, just as one example. To discuss this topic in-depth, 2ndQuadrant hosted the “Postgres Vacuuming Through Pictures” webinar. The […]

Partitioning enhancements in PostgreSQL 12

July 15, 2019/0 Comments/in 2ndQuadrant, Kirk’s PlanetPostgreSQL /by Kirk Roybal

Declarative partitioning got some attention in the PostgreSQL 12 release, with some very handy features. There has been some pretty dramatic improvement in partition selection (especially when selecting from a few partitions out of a large set), referential integrity improvements, and introspection. In this article, we’re going to tackle the referential integrity improvement first. This […]

Webinar: Migration to PostgreSQL [Follow up]

June 27, 2019/0 Comments/in 2ndQuadrant, Webinars /by Nouman

Among the many reasons to Migrate to PostgreSQL, available support is a key driver for many businesses deciding to migrate. PostgreSQL is an open source software which is also extendable. You can implement missing features in it as per your business need. Migration to PostgreSQL, however, can be a tricky decision as it requires planning, […]

Swoop de Dupe

May 29, 2019/10 Comments/in Elein’s PlanetPostgreSQL /by Elein

The problem: duplicate rows Once upon a time, there was a database person who knows about referential integrity and its importance for creating database tables. The interesting part is that referential integrity, including primary keys, enable keeping with the standard of not having duplicate rows. However, they just wanted a private little table on their […]

Webinar: Security and Compliance with PostgreSQL [Follow Up]

April 25, 2019/0 Comments/in PostgreSQL, Webinars /by Bilal Ibrar

For businesses handling personal data, security of their database is a serious matter. Faced with an increasing number of attacks, an organization must improve their security and compliance policies, improve their database infrastructure and ensure all proper security protocols are in place.

Webinar: Achieving High Availability with PostgreSQL [Follow Up]

February 27, 2019/0 Comments/in Liaqat's PlanetPostgreSQL /by Liaqat Andrabi