GitHub user gallenvara opened a pull request:
https://github.com/apache/flink/pull/1940
[FLINK-2220] Join on Pojo without hashCode() silently fails
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Add a check to verify the POJO has overridden the `hashCode()` and
`equals()` where it used as a key for operations(join,coGroup,etc).
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gallenvara/flink flink-2220
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1940.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 #1940
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commit 2f8bfe59540831f3e2e9b181f3a51f0565693cb2
Author: gallenvara <gallenv...@126.com>
Date: 2016-04-26T16:08:27Z
Check hashcode and equal method overridden in which POJO used as key.
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