Azalea buds
The MySQL 5.4 “Azalea” version was scheduled for a feature freeze last week. Thus it’s getting clearer what will come with the next milestone in a few months. The following is not official information but it is what I can actually see.
What’s not in
Some features, which I expected and predicted would be in, are not in.
* WL#2360 Performance Schema. We’re now in the fifth month of the first code review.
* WL#2649 Number-to-string conversions. We’re still using VARBINARY a lot.
* WL#1326, WL#2377 GIS
* WL#4803 Pluggable Query Cache module
* WL#1213 Supplementary Characters. This feature works great but could disrupt upgrades.
I apologize if I got anyone’s hopes up. The tasks are not cancelled and I’m hopeful about the next milestone releases.
What’s in
BACKUP and RESTORE are in, provided you start the server with mysqld –new. Some people say the feature is disabled, but it’s not disabled in the latest download.
There will be changes related to the Innodb plugin made by our Oracle partners.
Other changes that I’ve blogged about previously are in, including SIGNAL/RESIGNAL. OUT parameters in prepared statements, Sinhala collation, and changes to INFORMATION_SCHEMA.PARAMETERS. Of course we’re billing Azalea as a bouquet of performance enhancements, but these visible features alone are a big deal, people have wanted them for a long time.

July 13th, 2009 at 10:04 pm
Hi Peter!
I’m very happy with these new features! Thanks for the information, this was really helpful.
kind regards,
Roland