Better error message for UDF parameter handling
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Key: HIVE-508
URL: https://issues.apache.org/jira/browse/HIVE-508
Project: Hadoop Hive
Issue Type: Bug
Reporter: Zheng Shao
{code}
CREATE TABLE x (a map<string,string>);
SELECT round(a) FROM x;
{code}
This will show an error message:
FAILED: Unknown exception : org.apache.hadoop.hive.serde2.typeinfo.MapTypeInfo
cannot be cast to org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo
We need better error messsage like:
FAILED: Unable to pass a (type: map<string,string>) to function round.
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