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Posted to issues@tajo.apache.org by "Jaehwa Jung (JIRA)" <ji...@apache.org> on 2014/12/04 08:32:12 UTC

[jira] [Updated] (TAJO-1213) Implement CatalogStore::updateTableStats

     [ https://issues.apache.org/jira/browse/TAJO-1213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jaehwa Jung updated TAJO-1213:
------------------------------
    Summary: Implement CatalogStore::updateTableStats  (was: Implement CatalogStore::updateTable)

> Implement CatalogStore::updateTableStats
> ----------------------------------------
>
>                 Key: TAJO-1213
>                 URL: https://issues.apache.org/jira/browse/TAJO-1213
>             Project: Tajo
>          Issue Type: Improvement
>          Components: catalog
>            Reporter: Jaehwa Jung
>            Assignee: Jaehwa Jung
>
> Currently, there is no method to update existing table information at CatalogStore. So, if user execute an insert query, tajo drop a table and then tajo create a table. It doesn't matter to tajo own CatalogStore like DerbyStore, MySQLStore. But it is a critical issue to HCatalogStore. if tajo drop a existing partitioned table, users will lose existing partition informations. As a result, they should repair table partition against their will. As you know, hive msck command can affect hive metastore performance.



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