Dominic Ricard created SPARK-14666:
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Summary: Using DISTINCT on a UDF (like CONCAT) is not supported
Key: SPARK-14666
URL: https://issues.apache.org/jira/browse/SPARK-14666
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.6.1
Reporter: Dominic Ricard
Priority: Minor
The following query fails with:
{noformat}
Java::JavaSql::SQLException: org.apache.spark.sql.AnalysisException: cannot
resolve 'column_1' given input columns: [_c0]; line # pos ##
{noformat}
Query:
{noformat}
select
distinct concat(column_1, ' : ', column_2)
from
table
order by
concat(column_1, ' : ', column_2);
{noformat}
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