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https://issues.apache.org/jira/browse/HIVE-21238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16765391#comment-16765391
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Miklos Gergely edited comment on HIVE-21238 at 2/11/19 10:35 PM:
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[~vgarg] I agree that this is not the best method, it would be much better if
the function itself could get it from some sort of context (MapredContext
maybe?). Unfortunately I don't see how it could be done at the moment. When
I've implemented this function we faced the same issue, and at the end we chose
this not-so-good solution. I'll create a Jira for the improvement of this.
GenericUdfSurrogateKey can not be tested in the q file test envrionment as
there is no write id present in that environment.
was (Author: mgergely):
[~vgarg] I agree that this is not the best method, it would be much better if
the function itself could get it from some sort of context. Unfortunately I
don't see how it could be done at the moment. When I've implemented this
function we faced the same issue, and at the end we chose this not-so-good
solution. I'll create a Jira for the improvement of this.
> Fix Surrogate Key issue
> -----------------------
>
> Key: HIVE-21238
> URL: https://issues.apache.org/jira/browse/HIVE-21238
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 3.0.0
> Reporter: Miklos Gergely
> Assignee: Miklos Gergely
> Priority: Major
> Fix For: 3.0.1
>
> Attachments: HIVE-21238.01.patch, HIVE-21238.02.patch
>
>
> When SemanticAnalyzer is trying to set the write id for the surrogate key
> function it is looking for such functions only in the main operator, while it
> should also look for it in it's parents.
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