Multi partitions LWT is not supported currently on purpose. To support it, we would have to emulate a distributed lock which is pretty bad for performance.
On Mon, Sep 7, 2015 at 10:38 PM, Marek Lewandowski < marekmlewandow...@gmail.com> wrote: > Hello there, > > would you be interested in having multi-partition support for lightweight > transactions in order words to have ability to express something like: > > INSERT INTO … IF NOT EXISTS AND > UPDATE … IF EXISTS AND > UPDATE … IF colX = ‘xyz’ > > where each statement refers to a row living potentially on different set > of nodes. > In yet another words: imagine batch with conditions, but which allows to > specify multiple statements with conditions for rows in different > partitions. > > Do you find it very useful, moderately useful or you don’t need that > because you have some superb business logic handling of such cases for > example? > > Let me know. > Regards, > Marek
