[ https://issues.apache.org/jira/browse/HIVE-7090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jason Dere reassigned HIVE-7090: -------------------------------- Assignee: Jason Dere (was: Harish Butani) > Support session-level temporary tables in Hive > ---------------------------------------------- > > Key: HIVE-7090 > URL: https://issues.apache.org/jira/browse/HIVE-7090 > Project: Hive > Issue Type: Bug > Components: SQL > Reporter: Gunther Hagleitner > Assignee: Jason Dere > Attachments: HIVE-7090.1.patch, HIVE-7090.2.patch, HIVE-7090.3.patch > > > It's common to see sql scripts that create some temporary table as an > intermediate result, run some additional queries against it and then clean up > at the end. > We should support temporary tables properly, meaning automatically manage the > life cycle and make sure the visibility is restricted to the creating > connection/session. Without these it's common to see left over tables in > meta-store or weird errors with clashing tmp table names. > Proposed syntax: > CREATE TEMPORARY TABLE .... > CTAS, CTL, INSERT INTO, should all be supported as usual. > Knowing that a user wants a temp table can enable us to further optimize > access to it. E.g.: temp tables should be kept in memory where possible, > compactions and merging table files aren't required, ... -- This message was sent by Atlassian JIRA (v6.2#6252)