liuxian created SPARK-20569:
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Summary: In spark-sql,Some functions can execute successfully,
when the number of input parameter is wrong
Key: SPARK-20569
URL: https://issues.apache.org/jira/browse/SPARK-20569
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.1.0
Reporter: liuxian
Priority: Trivial
>select Nvl(null,'1',3);
>3
The function of "Nvl" has Only two input parameters,so, when input three
parameters, i think it should notice that:"Error in query: Invalid number of
arguments for function nvl".
Such as "nvl2", "nullIf","IfNull",these have a similar problem
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