[jira] Commented: (HIVE-1517) ability to select across a database

["John Sichi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12896703#action_12896703 ] 

John Sichi commented on HIVE-1517:
----------------------------------

This case needs to work:

{noformat}
use db1;
create table t(...);

create view v as select * from t;

use db2;
select * from db1.v;
{noformat}

What this means is that when we store the definition of v, we need to store a fully-qualified db1.t reference.  Otherwise, when we expand the view in the later query, we'll look for t in db2 (incorrect) rather than db1 (correct).


> ability to select across a database
> -----------------------------------
>
>                 Key: HIVE-1517
>                 URL: https://issues.apache.org/jira/browse/HIVE-1517
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Carl Steinbach
>
> After  https://issues.apache.org/jira/browse/HIVE-675, we need a way to be able to select across a database for this feature to be useful.
> For eg:
> use db1
> create table foo(....);
> use db2
> select .. from db1.foo.....

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