Citus 10.2 is out! 10.2 brings you new columnar & time series features—and is ready to support Postgres 14. Read the new Citus 10.2 blog.

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Murat Tuncer

Murat Tuncer


Postgres and Citus software developer at Microsoft & Citus Data. R&D projects in distributed systems, network protocol analysis, & data mining. Builds static ship models.

Murat Tuncer

Distributed count distinct vs. HyperLogLog in Postgres

Written by By Murat Tuncer | December 22, 2017 Dec 22, 2017

Citus 7.1 shipped just a few weeks back and included a number of great new features. In case you missed the details check out Ozgun’s blog or read up on what Citus is on our site. Today though we want to drill further into an important area in Postgres, counting.

Getting a distinct count of some value out of your database is a common question. We’ve talked about how to count more quickly on our blog before, and followed that up with how you can use probabilistic algorithms like HyperLogLog to do counts faster.

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Murat Tuncer

cstore_fdw 1.4 released

Written by By Murat Tuncer | January 19, 2016 Jan 19, 2016

Citus Data is excited to announce the release of cstore_fdw 1.4. cstore_fdw is an open source columnar store extension for PostgreSQL that compresses your database tables and reduces disk I/O.

cstore_fdw Changes

The changes in this release include...

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