Haofeng Tang created DRILL-2468:
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Summary: When create a custom function, including 3rd party
library would cause the query to fail.
Key: DRILL-2468
URL: https://issues.apache.org/jira/browse/DRILL-2468
Project: Apache Drill
Issue Type: Bug
Components: Execution - Codegen, Execution - Relational Operators
Affects Versions: 0.7.0, 0.8.0
Environment: CentOS 64-bit
Reporter: Haofeng Tang
Assignee: Chris Westin
I followed these articles to create a custom function. I was able to repeat
these examples to build, and run queries using these new functions
successfully. But if I used some 3rd party libraries in my code, of cause with
all dependencies resolved with maven, although I was able to build, I receive
an error "No applicable constructor/method found for actual parameters
"java.lang.Object";"
when I tried to use the added function in my query. Seems to be a classloader
issue.
Thanks
---------------- reference articles --------------
https://cwiki.apache.org/confluence/display/DRILL/Develop+Custom+Functions
http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
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