Category “PostgreSQL” — 131 articles

If you’ve been following along at home the newer statistics developments, you might have heard about this new State of The Art Cardinality Estimation Algorithm called HyperLogLog. This technique is now available for PostgreSQL in the extension postgresql-hll available at https://github.com/aggregateknowledge/postgresql-hll and soon to be in debian.

In a recent article titled Inline Extensions we detailed the problem of how to distribute an extension’s package to a remote server without having access to its file system at all. The solution to that problem is non trivial, let’s say. But thanks to the awesome PostgreSQL Community we finaly have some practical ideas on how to address the problem as discussed on pgsql-hackers, our development mailing list. *PostgreSQL is first an Awesome Community* The solution we talked about is to use templates, and so I’ve been working on a patch to bring templates for extensions to PostgreSQL.

We’ve been having the CREATE EXTENSION feature in PostgreSQL for a couple of releases now, so let’s talk about how to go from here. The first goal of the extension facility has been to allow for a clean dump and restore process of contrib modules. As such it’s been tailored to the needs of deploying files on the file system because there’s no escaping from that when you have to ship binary and executable files, those infamous .

It’s been a long time since I last had some time to spend on the prefix PostgreSQL extension and its prefix_range data type. With PostgreSQL 9.2 out, some users wanted me to update the extension for that release, and hinted me that it was high time that I fix that old bug for which I already had a patch. prefix_range release 1.2.0 I’m sorry it took that long. It’s now done, you can have prefix 1.

I’ve been given a nice puzzle that I think is a good blog article opportunity, as it involves some thinking and window functions.