24.03.2016 16:24, Adriano dos Santos Fernandes wrote: > > If we use the new version only when the object actually uses more than > 255 contexts, it's an object that cannot be really migrated backward.
It's doable, just with minor tweaks - BLR version tag should be adjusted in-place after the whole BLR stream is composed. > But maybe instead of change the version, we can introduce BLR flags. By > default, a backward-compatible object would not generate any flag and > then generates the same BLR when created. > > The initial BLR flag we could create is: > > blr_flag, blr_flag_large_context_space > > When an object has this flag (right after blr_version), BLR parser > parses the context numbers in a different way. I'd say its handling is likely to be absolutely the same as for new BLR version, so I don't see any major difference. But I will think more about this. Dmitry ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
