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https://issues.apache.org/jira/browse/HIVE-14943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15638474#comment-15638474
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Eugene Koifman edited comment on HIVE-14943 at 11/5/16 4:08 AM:
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The AND <boolean expr> in WHEN is unrestricted
The implementation ensures that every row can only go down one branch by
appending AND NOT X to the 2nd WHEN MATCHED clause where X is the AND X of
previous WHEN MATCHED. That is why it's required.
VALUES is required by the standard.
I don't plan to add .q tests except perhaps to test Tez when things are nearing
completion.
Other replies on RB
was (Author: ekoifman):
The AND <boolean expr> in WHEN is unrestricted
The implementation ensures that every row can only go down one branch by
appending AND NOT X to the 2nd WHEN MATCHED clause where X is the AND X of
previous WHEN MATCHED. That is why it's required.
VALUES is required by the standard.
I don't plan to add .q tests except perhaps to test Tez when things are nearing
completion.
> Base Implementation
> -------------------
>
> Key: HIVE-14943
> URL: https://issues.apache.org/jira/browse/HIVE-14943
> Project: Hive
> Issue Type: Sub-task
> Components: Transactions
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Attachments: HIVE-14943.2.patch, HIVE-14943.3.patch,
> HIVE-14943.4.patch, HIVE-14943.5.patch, HIVE-14943.6.patch,
> HIVE-14943.7.patch, HIVE-14943.8.patch, HIVE-14943.9.patch, HIVE-14943.patch
>
>
> Create the 1st pass functional implementation of MERGE
> This should run e2e and produce correct results.
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