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Generated (Virtual) Columns in MySQL 5.7 (labs)

 | April 29, 2015 |  Posted In: MySQL

About 2 weeks ago Oracle published the MySQL 5.7.7-labs-json version which includes a very interesting feature called “Generated columns” (also know as Virtual or Computed columns). MariaDB has a similar feature as well: Virtual (Computed) Columns. The idea is very simple: if we store a column

in our table we may want to filter or group […]

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Test your knowledge: Percona XtraDB Cluster (PXC) quiz

 | April 28, 2015 |  Posted In: High-availability, Insight for DBAs, MySQL, Percona XtraDB Cluster

I often talk with people who are very interested in the features of Percona XtraDB Cluster (PXC) such as synchronous and parallel replication, multi-node writing and high availability. However some get confused when operating a real PXC cluster because they do not fully realize the implications of these features. So here is a fun way […]

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Percona Live & OpenStack Live 2015 wrap-up

 | April 24, 2015 |  Posted In: Events and Announcements, MySQL, Percona Live

With highlights that included news of Percona’s acquisition of Tokutek, a lively keynote discussion with Apple legend Steve “Woz” Wozniak, scores of technical sessions, tutorials and a festive MySQL community dinner and game night, last week’s Percona Live MySQL Conference and Expo had something for everyone. More than 1,200 attendees from around the world converged […]

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Considering Sharding with MySQL? Join my April 22 webinar. Questions welcome!

 | April 21, 2015 |  Posted In: Insight for DBAs, MySQL, Technical Webinars

MySQL sharding is one of the most used and surely the most abused MySQL scaling technology. My April 2 Dzone article, “To Shard, or Not to Shard,” proved there is indeed quite an interest in this topic. As such, I’m hosting a live webinar tomorrow (April 22) that will shed light on questions about sharding with […]

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Profiling MySQL queries from Performance Schema

 | April 16, 2015 |  Posted In: MySQL

When optimizing queries and investigating performance issues, MySQL comes with built in support for profiling queries aka SET profiling = 1; . This is already awesome and simple to use, but why the PERFORMANCE_SCHEMA alternative? Because profiling will be removed soon (already deprecated on MySQL 5.6 ad 5.7); the built-in profiling capability can only be enabled per session. This […]

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Checking table definition consistency with mysqldiff

 | April 15, 2015 |  Posted In: MySQL

Data inconsistencies in replication environments are a pretty common. There are lots of posts that explain how to fix those using pt-table-checksum and pt-table-sync. Usually we only care about the data but from time to time we receive this question in support: How can I check the table definition consistency between servers? Replication also allow […]

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Why Percona Acquired Tokutek: by Peter Zaitsev

 | April 14, 2015 |  Posted In: Tokutek, TokuView

It is my pleasure to announce that Percona has acquired Tokutek and will take over development and support for TokuDB® and TokuMX™ as well as the revolutionary Fractal Tree® indexing technology that enables those products to deliver improved performance, reliability and compression for modern Big Data applications. At Percona we have been working with the […]

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Team Tokutek is proud to join Team Percona!

 | April 14, 2015 |  Posted In: MySQL, Percona Live, Tokutek

If you haven’t already heard, on the Tuesday morning of the 2015 Percona Live MySQL Conference and Expo it was announced that Tokutek is now part of the Percona family.  This means TokuDB® for MySQL, and TokuMX™ for MongoDB are Percona products now; and that the Tokutek  team is now part of the Percona team. […]

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