On 09/12/2011 16:34, Vlad Khorsun wrote: >> CORE-3073 [1] requires special BLR verb meaning "get the default value >> of a field". There is request to expose the same functionality in SQL >> too, but doesn't matter here. >> >> These cascade triggers are system triggers but are backed-up and >> restored. If we use new BLR on them, downgrades via gbak will not work. >> >> So is this acceptable, that in some cases people must recreate database >> from script to downgrade? > Is it possible to make v2.5.2 also understand and execute (but not > generate) > this new blr verb ? It will enable to downgrade 3.0 -> 2.5.2. > > Yes, but AFAIK we had such type of discussion (of add new blrs for backward compatibility reason) in the past and choose to not do it in a specific case.
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