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https://issues.apache.org/jira/browse/HIVE-13266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates resolved HIVE-13266.
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Resolution: Invalid
JIRA is intended for reporting bugs or recording tasks that developers are
working on. Questions should be asked on the user or dev list. This one looks
like it belongs on the user list.
Currently Hive doesn't support the concept of a primary key. ORC actually has
a primary key when being used with ACID, but it isn't exposed out to the user.
There's some work to do to make that happen and allow the user to choose which
column(s) form the primary key. If we did this it would not include the
constraint that guarantees there's no duplicates with this key, since enforcing
that would be very expensive without an in memory index to check all new
records against.
> HIVE ACIDINPUTFORMAT WITH PRIMARY KEY
> -------------------------------------
>
> Key: HIVE-13266
> URL: https://issues.apache.org/jira/browse/HIVE-13266
> Project: Hive
> Issue Type: Task
> Components: Hive
> Reporter: Marco barbieri
>
> HI,
> I want to know if there is a way to use primary key with acidInputFormat as
> Parquet or ORC (HIVE).
> Thank you.
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