[jira] [Commented] (HIVE-12676) [hive+impala] Alter table Rename to + Set location in a single step
[ https://issues.apache.org/jira/browse/HIVE-12676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15061378#comment-15061378 ] Lefty Leverenz commented on HIVE-12676: --- [~egmont@c], yes you should file this request separately for Impala. Thanks. > [hive+impala] Alter table Rename to + Set location in a single step > --- > > Key: HIVE-12676 > URL: https://issues.apache.org/jira/browse/HIVE-12676 > Project: Hive > Issue Type: Improvement > Components: hpl/sql >Reporter: Egmont Koblinger >Assignee: Dmitry Tolpeko >Priority: Minor > > Assume a nonstandard table location, let's say /foo/bar/table1. You might > want to rename from table1 to table2 and move the underlying data accordingly > to /foo/bar/table2. > The "alter table ... rename to ..." clause alters the table name, but in the > same step moves the data into the standard location > /user/hive/warehouse/table2. Then a subsequent "alter table ... set location > ..." can move it back to the desired location /foo/bar/table2. > This is problematic if there's any permission problem in the game, e.g. not > being able to write to /user/hive/warehouse. So it should be possible to move > the underlying data to its desired final place without intermittent places in > between. > A probably hard to discover workaround is to set the table to external, then > rename it, then set back to internal and then change its location. > It would be great to be able to do an "alter table ... rename to ... set > location ..." operation in a single step. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HIVE-12676) [hive+impala] Alter table Rename to + Set location in a single step
[ https://issues.apache.org/jira/browse/HIVE-12676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15057709#comment-15057709 ] Egmont Koblinger commented on HIVE-12676: - (Please let me know if I should file a separate jira for the same feature request in Impala.) > [hive+impala] Alter table Rename to + Set location in a single step > --- > > Key: HIVE-12676 > URL: https://issues.apache.org/jira/browse/HIVE-12676 > Project: Hive > Issue Type: Improvement > Components: hpl/sql >Reporter: Egmont Koblinger >Assignee: Dmitry Tolpeko >Priority: Minor > > Assume a nonstandard table location, let's say /foo/bar/table1. You might > want to rename from table1 to table2 and move the underlying data accordingly > to /foo/bar/table2. > The "alter table ... rename to ..." clause alters the table name, but in the > same step moves the data into the standard location > /user/hive/warehouse/table2. Then a subsequent "alter table ... set location > ..." can move it back to the desired location /foo/bar/table2. > This is problematic if there's any permission problem in the game, e.g. not > being able to write to /user/hive/warehouse. So it should be possible to move > the underlying data to its desired final place without intermittent places in > between. > A probably hard to discover workaround is to set the table to external, then > rename it, then set back to internal and then change its location. > It would be great to be able to do an "alter table ... rename to ... set > location ..." operation in a single step. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
