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MySQL 5.6.10 Optimizer Limitations: Index Condition Pushdown

 | March 14, 2013 |  Posted In: Events and Announcements, Insight for Developers, MySQL

While preparing the webinar I will deliver this Friday, I ran into a quite interesting (although not very impacting) optimizer issue: a “SELECT *” taking half the time to execute than the same “SELECT one_indexed_column” query in MySQL 5.6.10. This turned into a really nice exercise for checking the performance and inner workings of one […]

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