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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21165) ACID: pass query hint to the writers to write hive.acid.key.index
Date Tue, 19 Mar 2019 03:50:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795644#comment-16795644
] 

Eugene Koifman commented on HIVE-21165:
---------------------------------------

The logic in HIVE-20738 relies on this index.

> ACID: pass query hint to the writers to write hive.acid.key.index
> -----------------------------------------------------------------
>
>                 Key: HIVE-21165
>                 URL: https://issues.apache.org/jira/browse/HIVE-21165
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 3.1.1
>            Reporter: Vaibhav Gumashta
>            Assignee: Vaibhav Gumashta
>            Priority: Major
>
> For the query based compactor from HIVE-20699, the compaction runs as a sql query. However,
this mechanism skips over writing hive.acid.key.index for each stripe, which is used to skip
over stripes that are not supposed to be read. We need a way to pass a query hint to the writer
so that it can write this index data, when invoked from a sql query.



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