MySQl 5.7 New Features


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Slides at

I'm not sure if this talk was for beginners or for advanced users. Beginners (if any) probably had a hard time while trying to understand the big amount of staff mentioned during the talk. And advanced users want to see something more: examples, benchmarks, etc.

For example: Sys Schema. I'm happy to hear that it exists, but what does it? Also, it is built upon information_schema and performance_schema. But then, I cannot accept statements like "its overhead is 2-5%", this is simply impossible, because p_s can be MUCH slower than 5%, and i_s acquires a lot of metadata locks.

I was really excited when I entered the room to attend the talk, but... I'm sorry to say that I expected much more.