Hi,
> I'm hoping someone can help me shed some light on how Hive deals with
virtual columns.
The virtual column impl is not extensible in Hive, it is a fixed set of
enums.
https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/metadata/VirtualColumn.java#L64
hope that clarifies my question a bit, thanks for your reply!
Christine
From: Mich Talebzadeh
Reply to: "user@hive.apache.org"
Date: Wednesday, 6 May 2020 at 17:11
To: user
Subject: Re: Adding a virtual column for a custom input format
Hi Christine.
Virtual column meaning a deri
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On Wed, May 6, 2020 at 10:53 AM Christine Mathiesen
wrote:
> Hello!
>
> I'm hoping someone can help me shed some light on how Hive deals with
> virtual columns. We are trying to implement some time travel features in a
> custom input format we're building and are considering the
Hi Christine.
Virtual column meaning a derived column?
can you achieve this by creating a view on Hive table?
HTH
Dr Mich Talebzadeh
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Hello!
I'm hoping someone can help me shed some light on how Hive deals with virtual
columns. We are trying to implement some time travel features in a custom input
format we're building and are considering the approach of adding a virtual
column, but I haven't been able to find much
