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From John Lilley <>
Subject Questions: history of deleted records, controlling timestamps
Date Fri, 18 Dec 2015 00:50:57 GMT

I've been reading about Phoenix with an eye toward implementing a "versioned database" on
Hadoop.  It looks pretty slick, especially the ability to query at past timestamp.  But I
can't figure out what happens with deleted records.  Are all versions deleted, or can I still
go back in time and see the versions before the delete?

Also I would like to be able to make a set of changes "at the same timestamp" to a get a changeset-like
ability similar to a VCS.  It looks like the APIs allow for setting of the effective timestamp
for all change operations; is that true?

John Lilley

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