MariaDB Blog

January 10, 2018

MariaDB ColumnStore Distributed User Defined Aggregate Functions

MariaDB ColumnStore 1.1 introduces the Distributed User Defined Aggregate Functions (UDAF) C++ API. MariaDB Server has supported UDAF (a C API) for a while, but now we have extended it to the ColumnStore Engine. This new feature allows anyone to create aggregate functions of arbitrary complexity for distributed execution in the ColumnStore Engine. These functions can also be used as Analytic (Window) functions just like any built in aggregate. You should have a working understanding of C++ to use this API.

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December 27, 2017

MariaDB Holiday Reflections and Gratitude

As we wrap up 2017, we want to take a moment to reflect on the past year. We’ve seen tremendous support from our community, customers and partners – and for that, we are grateful. Our customers across the global have shared heartwarming stories of their business success and we appreciate the opportunity to be your valued partner. For us, 2017 was a milestone year. Our progress this year reflects a global theme that brings us forward to new opportunities.

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December 23, 2017

Announcing MariaDB Server 10.3 Beta

We are happy to announce the first beta release of MariaDB Server 10.3, the fastest growing open source relational database.

MariaDB Server 10.3 is the next evolution, after MariaDB Server 10.2 with enhancements like Window Functions, Common Table Expressions, JSON functions and CHECK constraints.

For MariaDB Server 10.3 a lot of effort has been spent on database compatibility enhancements, especially for stored routines.

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December 13, 2017

Atomic Compound Statements

Recently, we had a discussion about a hypothetical feature, "START TRANSACTION ON ERROR ROLLBACK", that our users would find very useful. It would allow sending several commands to the server in one batch (a single network packet), and let the server handle the errors. This would combine efficient network use, and atomic execution. It turns out that it is already possible to do this with MariaDB, albeit with a slightly different syntax.

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