Den 2011-12-31 15:08 skrev Dmitry Yemanov såhär: > 31.12.2011 17:57, Alexander Peshkov wrote: > >> This will make each version of the record (not the record- but EACH >> version of it) 4 bytes longer. > Not strictly necessary. We could use a variable-length encoding for txn > ids longer than 32 bits and mark such records with a new flag. It would > add zero storage/performance overhead for all the current applications > but allow longer txn ids for the slightly bigger cost. It would increase > the code complexity though.
Are there unused flag bits available in the current record format, that could be used for this purpose? Or how are such flag bits encoded? Kjell -- -------------------------------------- Kjell Rilbe DataDIA AB E-post: kj...@datadia.se Telefon: 08-761 06 55 Mobil: 0733-44 24 64 ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
