It will do its best to throw an exception if duplicate names are produced within one pane. Otherwise, it will overwrite.
On Tue, Feb 13, 2018 at 11:58 AM Carlos Alonso <car...@mrcalonso.com> wrote: > Cool, thanks. > > What if the destination is not properly coded and the File naming policy > then produces a duplicated path? Will it throw an exception? Overwrite? > > Thanks! > > On Tue, Feb 13, 2018 at 6:23 PM Eugene Kirpichov <kirpic...@google.com> > wrote: > >> Dynamic file writes generate 1 set of files (shards) for every pane >> firing of every window of every destination. File naming policy is required >> to produce different names for every combination of (destination, shard >> index, window, pane) so you never have to append or overwrite. A new >> element arriving for a destination after something for that destination has >> already been written will simply be in the next pane, or in a different >> window. >> >> On Tue, Feb 13, 2018, 6:33 AM Carlos Alonso <car...@mrcalonso.com> wrote: >> >>> Hi everyone!! >>> >>> I'm wondering how a TextIO with dynamic routing knows/decides when to >>> finalise a file and what happens if after it is finalised, another element >>> routed for the same file appears. >>> >>> Thanks! >>> >>
