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https://issues.apache.org/jira/browse/KUDU-1563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16723538#comment-16723538
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Mike Percy commented on KUDU-1563:
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I know I'm late to this party. I think it's worth modeling what SQL does and
INSERT IGNORE in that context operates at a batch or operation level, not a
session level. So it seems more of an impedance match to keep this type of
error handling configuration at the operation or batch level from a client API
perspective to avoid requiring SQL clients to constantly be setting session
options if they are caching sessions.
> Add support for INSERT IGNORE
> -----------------------------
>
> Key: KUDU-1563
> URL: https://issues.apache.org/jira/browse/KUDU-1563
> Project: Kudu
> Issue Type: New Feature
> Reporter: Dan Burkert
> Assignee: Brock Noland
> Priority: Major
> Labels: newbie
>
> The Java client currently has an [option to ignore duplicate row key errors|
> https://kudu.apache.org/apidocs/org/kududb/client/AsyncKuduSession.html#setIgnoreAllDuplicateRows-boolean-],
> which is implemented by filtering the errors on the client side. If we are
> going to continue to support this feature (and the consensus seems to be that
> we probably should), we should promote it to a first class operation type
> that is handled on the server side. This would have a modest perf.
> improvement since less errors are returned, and it would allow INSERT IGNORE
> ops to be mixed in the same batch as other INSERT, DELETE, UPSERT, etc. ops.
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