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Posted to dev@hive.apache.org by "Namit Jain (JIRA)" <ji...@apache.org> on 2009/03/12 02:27:50 UTC
[jira] Assigned: (HIVE-124) aggregation on empty table should still
return 1 row
[ https://issues.apache.org/jira/browse/HIVE-124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain reassigned HIVE-124:
-------------------------------
Assignee: Namit Jain
> aggregation on empty table should still return 1 row
> ----------------------------------------------------
>
> Key: HIVE-124
> URL: https://issues.apache.org/jira/browse/HIVE-124
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Zheng Shao
> Assignee: Namit Jain
> Priority: Blocker
>
> The query "SELECT COUNT(1) FROM f_status_update fsu WHERE FALSE" should return a single row with value 0.
> Our code treat that query as "SELECT 1, COUNT(1) FROM f_status_update fsu WHERE FALSE GROUP BY 1", but these 2 queries are not equivalent because the second query will return empty result if the input is empty.
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