GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/741
[FLINK-2104] [ml] Fixes problem with type inference for fallback implicits
The solution seems to be to fix the output type to `Any`. This has the
consequence that all following operations will also be fallback operations if
they don't support `Any` inputs. But this should be fine since only the first
fallback operation will throw an exception stating why the operator could not
find a suitable operation.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink fixFallbackImplicits
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/741.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #741
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commit 48d3003036a0d049b73fd40278a1470b99f87c2b
Author: Till Rohrmann <trohrm...@apache.org>
Date: 2015-05-27T18:08:19Z
[FLINK-2104] [ml] Fixes problem with type inference for fallback implicits
where Nothing is not correctly treated (see SI-1570)
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