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https://issues.apache.org/jira/browse/SPARK-7149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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haiyang updated SPARK-7149:
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Comment: was deleted
(was: This is SqlParser problem,when we give no alias to a function in project,
the parser will give it a default alias like c0,c1....so, when we execute the
sql statement like "select isnull(key), key as c0 from testData order by c0",
it will throw exception.)
> Defalt system alias problem
> ---------------------------
>
> Key: SPARK-7149
> URL: https://issues.apache.org/jira/browse/SPARK-7149
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: haiyang
>
> Fix default system alias problem.
> execute the sql statement will cause problem:
> select substr(value, 0, 2), key as c0 from testData order by c0
> org.apache.spark.sql.AnalysisException: Reference 'c0' is ambiguous, could
> be: c0#42, c0#41.;
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