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https://issues.apache.org/jira/browse/HIVE-2228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13470017#comment-13470017
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Namit Jain commented on HIVE-2228:
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Isn't it true for other clauses also ?
I mean, order by, sort by, distribute by etc.
It is OK if you want to do that in a follow-up, but wanted to confirm.
> Can't use DB qualified column names in WHERE or GROUP BY clauses
> ----------------------------------------------------------------
>
> Key: HIVE-2228
> URL: https://issues.apache.org/jira/browse/HIVE-2228
> Project: Hive
> Issue Type: Bug
> Components: Database/Schema, Query Processor, SQL
> Affects Versions: 0.7.0
> Reporter: Carl Steinbach
> Assignee: Zhenxiao Luo
> Attachments: HIVE-2228.1.patch.txt
>
>
> Hive doesn't allow you to use DB qualified column names in the WHERE or GROUP
> BY clauses. The workaround is to define a table alias:
> {noformat}
> hive> CREATE DATABASE db1;
> OK
> hive> CREATE TABLE db1.t(a INT, b INT);
> OK
> hive> SELECT * FROM db1.t WHERE db1.t.a > 100;
> FAILED: Error in semantic analysis: Line 1:26 Invalid table alias or column
> reference 'db1'
> hive> SELECT * FROM db1.t t WHERE t.a > 100;
> OK
> hive> SELECT * FROM db1.t GROUP BY db1.t.a;
> FAILED: Error in semantic analysis: Line 1:29 Invalid table alias or column
> reference 'db1'
> hive> SELECT * FROM db1.t t GROUP BY t.a;
> OK
> {noformat}
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