Hi Stephan, I set the "filterFactor" in the CompilerHints of the mapper to 0.5, I hope that was what you meant. Nevertheless, it seems to have no effect on the output plan.
Sebastian 2014-09-01 13:56 GMT+02:00 Stephan Ewen <[email protected]>: > Hi! > > The optimizer pushes certain strategies down before the map operators. That > is correct, but it would be good to have a bias to not do that unless it > yields a clear advantage. > > For that case, the simplest fix would be to give the mapper a selectivity > smaller than one. That should do it. > > Stephan > > > > On Mon, Sep 1, 2014 at 1:47 PM, Sebastian Kunert <[email protected]> > wrote: > > > Hi, > > > > I have different plans for the DOPChangeTest in java 7 and 8. Here are > the > > two plans that are generated: > > > > Java 7: http://pastebin.com/krzF0gmJ > > Java 8: http://pastebin.com/a6TuBjzB > > > > The plans are equivalent and both okay. The question is how to deal with > > this in a testcase when we have to expect a specific plan. The problem > > arises in this pull request: > > https://github.com/apache/incubator-flink/pull/83 > > > > Sebastian > > >
