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Great write-up! Which of these features are new in 8.0 and not in 5.7?
by caleblloyd 10y ago
Great write-up! Which of these features are new in 8.0 and not in 5.7?
- morgo 10y agoMy goal is to explicitly state something as "new" when it is first in 8.0; but not mention the version when referring to older (mostly because it makes readability harder). So you can see the invisible indexes page does this (8.0 only): http://www.unofficialmysqlguide.com/invisible-indexes.html http://www.unofficialmysqlguide.com/invisible-indexes.html But there are subtitles where I don't go into full detail. For example here it didn't seem right to say that descending indexes are 8.0 only: http://www.unofficialmysqlguide.com/composite-indexes.html#determining-the-order-for-composite-indexes http://www.unofficialmysqlguide.com/composite-indexes.html#d... (In my next update I'll have a section on descending indexes and I'll be specific here.) The format of OPTIMIZER_TRACE looks different around things like sorting data. I'll always use the newer diagnostics which are more verbose.