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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2017/02/17 20:55:41 UTC

[jira] [Updated] (HIVE-15970) Fix merge to work in presence of AST rewrites

     [ https://issues.apache.org/jira/browse/HIVE-15970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eugene Koifman updated HIVE-15970:
----------------------------------
    Summary: Fix merge to work in presence of AST rewrites  (was: Fix merge to work in presents of AST rewrites)

> Fix merge to work in presence of AST rewrites
> ---------------------------------------------
>
>                 Key: HIVE-15970
>                 URL: https://issues.apache.org/jira/browse/HIVE-15970
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>    Affects Versions: 2.2.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Critical
>         Attachments: HIVE-15970.01.patch
>
>
> The issue is that Context.getDestNamePrefix() caches ASTNode objects to figure out if a given insert branch of multi-insert is insert, update or delete but objects change when the tree is modified.  For example, row-filtering/column-masking does this, but also other optimizations/features.



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