GitHub user selvaganesang opened a pull request:
https://github.com/apache/incubator-trafodion/pull/15
Changes related to JIRA [TRAFODION-14]
upsert or merge into a table with indexes can result in
inconsistency between index and table
The change is to pass the recent row timestamp to the Delete
operator. However, this may not solve the above issue because
tombstone marker timestamp can be same or later than the
recently added row even with this change.
This change is pushed for the following reasons:
a) To enable Trafodion async operation concept for the merge
operation
b) To optimize delete operation by removing unwanted memory
allocation.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/selvaganesang/incubator-trafodion master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/15.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 #15
----
commit 960b8609fe94ad1c7d354545fde0dcafc81e6cbf
Author: selvaganesang <[email protected]>
Date: 2015-06-30T21:11:52Z
Changes related to JIRA [TRAFODION-14]
upsert or merge into a table with indexes can result in
inconsistency between index and table
The change is to pass the recent row timestamp to the Delete
operator. However, this may not solve the above issue because
tombstone marker timestamp can be same or later than the
recently added row even with this change.
This change is pushed for the following reasons:
a) To enable Trafodion async operation concept for the merge
operation
b) To optimize delete operation by removing unwanted memory
allocation.
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