On 11/1/2013 6:49 AM, Alex Peshkoff wrote: > On 10/29/13 20:01, Dimitry Sibiryakov wrote: >> Hello, All. >> >> Did someone try to cut subj off and feed metadata from system tables >> directly every >> time when they are needed? >> > May be Jim? About 25 or more years ago :)
NFW. That's crazy. All of my databases are designed share metadata except Amorphous, which doesn't have any. Maintaining per connection metadata caches is a common technique for the thread-challenged database community, but it's next to impossible to support both this and dynamically updatable metadata. NuoDB, which necessarily supports independent metadata caches on individual nodes uses a precise table event mechanism in which event types and associated data items to be passed are declared at the database level. Clients, in turn, can register handlers for table events. The engines declare table events for the system tables. Table events, of course, are cached until the updating transaction is committed. > > > ------------------------------------------------------------------------------ > Android is increasing in popularity, but the open development platform that > developers love is also attractive to malware creators. Download this white > paper to learn more about secure code signing practices that can help keep > Android apps secure. > http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk > Firebird-Devel mailing list, web interface at > https://lists.sourceforge.net/lists/listinfo/firebird-devel ------------------------------------------------------------------------------ November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
