I strongly believe in the community. Communities are the real strength of open source. Not just the theoretical ability to study, modify and share code – but the fact that other people out there are doing these things. Creating a base of knowledge and a network of relations.These can become work relationships, valuable discussions, open […]
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As mentioned in a previous post, I gave a talk at Percona Live Europe 2018 about system-versioned tables. This is a new MariaDB 10.3 feature, which consists of preserving old versions of a table rows. Each version has two timestamps that indicate the start (INSERT,UPDATE) of the validity of that version, and its end (DELETE, […]
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One of the most common questions about privileges in MySQL and MariaDB is how would a user revoke access to a particular table, in a large database with hundreds or thousands of tables, while keeping the rest available. Currently, there is no easy solution. Just grant access to everything else, individually. Not only does this […]
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System-versioned tables, or temporal tables, are a typical feature of proprietary database management systems like DB2, Oracle and SQL Server. They also appeared at some point in PostgreSQL, but only as an extension; and also in CockroachDB, but in a somewhat limited fashion. The MariaDB® implementation is the first appearance of temporal tables in the MySQL […]
Read MoreHaving spent my recent years “in the real world”, working with many users, I’ve learnt that a particular new feature does not necessarily excite users as much as one might expect. MariaDB 10.3 however actually has some very interesting features that users do get excited about. So that’s great! My session at Percona Live Europe […]
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For Percona Live Europe this year, I got accepted a workshop on query optimization and a 50-minute talk covering TLS for MySQL at Large Scale, talking about our experiences at the Wikimedia Foundation. Workshop The 3-hour workshop on Monday, titled Query Optimization with MySQL 8.0 and MariaDB 10.3: The Basics is a beginners’ tutorial–though dense […]
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