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https://issues.apache.org/jira/browse/KUDU-237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15254300#comment-15254300
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Mike Percy commented on KUDU-237:
---------------------------------
Worth noting that REINSERT is currently represented in memory (in the
MemRowSet) but there is currently no serialization format for them on disk, so
on-disk history is truncated prior to the REINSERT when flushing.
> Support for encoding REINSERT
> -----------------------------
>
> Key: KUDU-237
> URL: https://issues.apache.org/jira/browse/KUDU-237
> Project: Kudu
> Issue Type: Sub-task
> Components: tablet
> Affects Versions: M3
> Reporter: David Alves
>
> REINSERTS make us loose all previous row history. In-order for this not to
> happen we need to store them somehow. The concern is that if stored as
> regular mutations REINSERTS are rowwise and not column wise, which could
> represent a serious perf hit.
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