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https://issues.apache.org/jira/browse/HIVE-26054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa resolved HIVE-26054.
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Resolution: Fixed
Merged to master. Thanks [~lvegh] for review!
> Distinct + Groupby with column alias is failing
> -----------------------------------------------
>
> Key: HIVE-26054
> URL: https://issues.apache.org/jira/browse/HIVE-26054
> Project: Hive
> Issue Type: Bug
> Reporter: Naresh P R
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> After [HIVE-16924|https://issues.apache.org/jira/browse/HIVE-16924], below
> query is failing.
> {code:java}
> create table table1 (col1 bigint, col2 string);
> create table table2 (t2_col1 string);
> Select distinct col1 as alias_col1
> from table1
> where col2 = (SELECT max(t2_col1) as currentdate from table2 limit 1)
> order by col1;
> Error: Error while compiling statement: FAILED: SemanticException Line 0:-1
> Unsupported SubQuery Expression '1': Only SubQuery expressions that are top
> level conjuncts are allowed (state=42000,code=40000) {code}
> Workaround is either remove distinct column alias "alias_col1" or use alias
> in order by.
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