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https://issues.apache.org/jira/browse/HIVE-4564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stamatis Zampetakis updated HIVE-4564:
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I cleared the fixVersion field since this ticket is still open. Please review
this ticket and if the fix is already committed to a specific version please
set the version accordingly and mark the ticket as RESOLVED.
According to the [JIRA
guidelines|https://cwiki.apache.org/confluence/display/Hive/HowToContribute]
the fixVersion should be set only when the issue is resolved/closed.
> Distinct along with order by is not working when table name is part of column
> name in order by clause
> -----------------------------------------------------------------------------------------------------
>
> Key: HIVE-4564
> URL: https://issues.apache.org/jira/browse/HIVE-4564
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.9.0
> Reporter: chandra sekhar gunturi
> Priority: Major
> Labels: distinct, hive,, order
> Fix For: 0.9.1
>
>
> I have following table named 'region'.
> hive> desc region;
> r_regionkey int
> r_name string
> r_comment string
> When we use <distinct, orderby> clause combination in table_name.column_name
> format, the query throws SemanticException.
> For example, the following query throws error.
> hive> select distinct region.r_name from region order by region.r_name;
> FAILED: SemanticException [Error 10004]: Line 1:51 Invalid table alias or
> column reference 'region': (possible column names are: _col0)
> The same query works fine if the same query is used without table name in
> order by clause.
> The following query works fine for region table.
> hive> select distinct region.r_name from region order by r_name;
> This is a common scenario in actual real world scenarios.
> For example, I want to find out what are all the cities my employees are from.
> >> SELECT DISTINCT CITY.NAME FROM EMPLOYEE, CITY WHERE EMPLOYEE.CID=CITY.CID
> >> ORDER BY CITY.NAME
> Here we are forced to use CITY.NAME as it may conflict with EMPLOYEE.NAME.
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