Drinking Games with PostgreSQL: GIN and RUM

Fulltext support is a very important feature of most modern relational databases. For one, they enable fast information retrieval and for another, they simply allow application designers and operators to remain inside the known relational world. No need for a second database-like system, no need for additional maintenance, no need for yet another library, no need for a fundamentally different query language. You get the point.

Starting with version 8.3, PostgreSQL supports the tsvector and tsquery constructs and with it indexing support for the matching operator. This post will cover more of those indexing technology which we can utilize for accelerating regular expressions, LIKE-queries, fulltext and even JSON-related queries.

PostgreSQL: production-ready Hash Indexes

Up to PostgreSQL 9.6, hash indexes were second class. Using them in production was not recommended; they weren't crash-safe. That's going to change with PostgreSQL 10. And here's what's gonna change.

PostgreSQL 10 is on its way

A multitude of features and fascinating details.

The next major release of PostgreSQL is on its way. It's a huge release in terms of features, improvements and bugfixes.

First things first

Versioning has been changed to a simpler scheme using only two numbers: major and minor version. So, this will be PostgreSQL 10 followed by 10.1 and 10.2 and so on. Okay, now let's get to the real deal 😉

PostgreSQL 9.6 Released

We are finally there. There is a new major version of PostgreSQL - 9.6.

Here are the news, so go ahead and read what they've done for the community. It's just great!

Cheers!

PostgreSQL: Optimizing Aggregates

Aggregation of vast energy: our sun.

It's time to write about PostgreSQL 9.6 again. With the Release Candidate 1 out in the wild, we slowly approach the end of a very interesting development cycle. Here I would like to talk about the development in the field of aggregates. So, two commits, 9/552 and 9/435, will improve the performance of queries using aggregate functions and GROUP BY clauses:

PostgreSQL: Index-Only Scans with Partial Indexes

Partial sun lurking out of the water.

Another posts of my PostgreSQL 9.6 series. This time, I am talking about commit 9/299.  The complete discussion can be found here.

PostgreSQL: Parallel Aggregate

With PostgreSQL 9.6 looming on the horizon, I went out to sift through some of PostgreSQL's commitfests to find some interesting bits and pieces. This post is the start of a series covering commits of the next generation of the venerable database management system.

Outflow made parallel.

PostgreSQL 9.5 released

Congratulation to the PostgreSQL Global Development Group for finishing another release of a great piece of software. There is pretty massive set of release notes online of which I'd like to cover the most notably changes and additions.