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Posted to issues@spark.apache.org by "Peter Lee (JIRA)" <ji...@apache.org> on 2016/08/02 06:16:20 UTC
[jira] [Created] (SPARK-16850) Improve error message for
greatest/least
Peter Lee created SPARK-16850:
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Summary: Improve error message for greatest/least
Key: SPARK-16850
URL: https://issues.apache.org/jira/browse/SPARK-16850
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Peter Lee
Greatest/least function does not have the most friendly error message for data types:
Error in SQL statement: AnalysisException: cannot resolve 'greatest(CAST(1.0 AS DECIMAL(2,1)), "1.0")' due to data type mismatch: The expressions should all have the same type, got GREATEST (ArrayBuffer(DecimalType(2,1), StringType)).; line 1 pos 7
We should report the human readable data type instead, rather than having "ArrayBuffer" and "StringType".
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