[GitHub] incubator-trafodion pull request #1261: [TRAFODION-1715] Improve memory use ...

[asfgit]

Github user asfgit closed the pull request at:

https://github.com/apache/incubator-trafodion/pull/1261


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[GitHub] incubator-trafodion pull request #1261: [TRAFODION-1715] Improve memory use ...

[DaveBirdsall]

GitHub user DaveBirdsall opened a pull request:

https://github.com/apache/incubator-trafodion/pull/1261

[TRAFODION-1715] Improve memory use in UPDATE STATS when sample table…

… is used

UPDATE STATISTICS allocates memory for columns before deciding whether to 
create and populate a sample table. (It may turn out that creating one is 
unnecessary.)

This change deallocates that memory when a sample table is created and 
populated, improving the amount of memory available for the latter. The memory 
is reallocated again once the sample table is populated.

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/DaveBirdsall/incubator-trafodion Trafodion1715

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/incubator-trafodion/pull/1261.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 #1261


commit 2d2643c5c9fe93448f454554195cb23c5ebc79b9
Author: Dave Birdsall 
Date:   2017-10-10T19:29:50Z

[TRAFODION-1715] Improve memory use in UPDATE STATS when sample table is 
used




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