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https://issues.apache.org/jira/browse/TAJO-1213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14234910#comment-14234910
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ASF GitHub Bot commented on TAJO-1213:
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GitHub user blrunner opened a pull request:
https://github.com/apache/tajo/pull/285
TAJO-1213: Implement CatalogStore::updateTableStats
I added a method to update TableStats at CatalogStore. For reference, all
unit cases for physical operators verify output row numbers and it finished
successfully with my patch. So, I didn't implement unit test cases. In
addition, HCatalogStore::updateTableStats is dummy method. Because hive don't
provide no api to update table row numbers.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/blrunner/tajo TAJO-1213
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tajo/pull/285.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #285
----
commit 400130ef27056c08d93a6385c7c7a6d74c092e5f
Author: JaeHwa Jung <[email protected]>
Date: 2014-12-04T09:08:48Z
TAJO-1213: Implement CatalogStore::updateTableStats.
commit b68195c803bbf09556e78e6194a23f8173fcaa32
Author: JaeHwa Jung <[email protected]>
Date: 2014-12-04T09:15:12Z
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into
TAJO-1213
----
> 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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