GitHub user HeartSaVioR opened a pull request:
https://github.com/apache/storm/pull/1734
STORM-2141 UDAFWrapper needs to provide parameter information when error
invoking method
While developing UDF and UDAF, users should be aware of association between
Calcite RelType and Java Type.
Though Calcite validates SQL statement, there seems be the chance for UDAF
to be called for unexpected parameter types, and
"java.lang.IllegalArgumentException: argument type mismatch" is thrown.
We can grab it and provide expected parameters and actual parameters so
that users can investigate why.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HeartSaVioR/storm STORM-2141
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/1734.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 #1734
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commit eef9538f84366e7bc23f57d185b08331891f3bb0
Author: Jungtaek Lim <kabh...@gmail.com>
Date: 2016-10-10T19:59:20Z
STORM-2141 UDAFWrapper needs to provide parameter information when error
invoking method
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