[
https://issues.apache.org/jira/browse/TRAFODION-1714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15066995#comment-15066995
]
ASF GitHub Bot commented on TRAFODION-1714:
-------------------------------------------
GitHub user DaveBirdsall opened a pull request:
https://github.com/apache/incubator-trafodion/pull/238
[TRAFODION-1714] Sample table population plan now printed before exec…
…ution
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/DaveBirdsall/incubator-trafodion Trafodion1714
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/238.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 #238
----
commit 8a2085f2dfbf8fc6673bd7fb48099faeae3dd484
Author: Dave Birdsall <dbirds...@apache.org>
Date: 2015-12-21T19:49:35Z
[TRAFODION-1714] Sample table population plan now printed before execution
----
> ULOG debugging tool does not capture query plan until after execution
> ---------------------------------------------------------------------
>
> Key: TRAFODION-1714
> URL: https://issues.apache.org/jira/browse/TRAFODION-1714
> Project: Apache Trafodion
> Issue Type: Bug
> Components: sql-cmp
> Affects Versions: 2.0-incubating, 1.3-incubating
> Environment: All
> Reporter: David Wayne Birdsall
> Assignee: David Wayne Birdsall
>
> ULOG is a diagnostic feature that we use when debugging problems with the
> UPDATE STATISTICS utility. It logs various information about the code paths
> and decisions taken by the utility during the course of its execution. One
> useful thing it does is to dump the query plans of any queries that it
> executes. Unfortunately, for the Sample Table load query, the plan isn't
> dumped until after execution completes. This is a problem because sometimes
> (due to other issues) that load query doesn't complete. So the query plan
> doesn't get logged in this case, forcing us to use other diagnostic methods
> to obtain this information. We would improve the ability to support Trafodion
> by dumping the query plans before execution.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
