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From "Zhan Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15572) Adding optional timestamp semantics to HBase-Spark
Date Fri, 01 Apr 2016 19:53:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15222242#comment-15222242
] 

Zhan Zhang commented on HBASE-15572:
------------------------------------

[~WeiqingYang] Can you please add a description in the ./src/main/asciidoc/_chapters/spark.adoc
as requested.

[~busbey] There is a document JIRA opened for the new Dataframe user interface and features.
The PR is not sent yet, because currently there is still a number of place needed to be changed
in the DataFrame support for HBase. Once it is done, a more complete doc will be sent for
the community review. To make the work more trackable, I create a link for  this jira to https://issues.apache.org/jira/browse/HBASE-14789.


HBASE-15473: Documentation for the usage of hbase dataframe user api (JSON, Avro, etc)

> Adding optional timestamp semantics to HBase-Spark
> --------------------------------------------------
>
>                 Key: HBASE-15572
>                 URL: https://issues.apache.org/jira/browse/HBASE-15572
>             Project: HBase
>          Issue Type: New Feature
>          Components: spark
>            Reporter: Weiqing Yang
>            Assignee: Weiqing Yang
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15572-1.patch, HBASE-15572-2.patch, HBASE-15572-3.patch, HBASE-15572-4.patch
>
>
> Right now the timestamp is always latest. With this patch, users can select timestamps
they want.
> In this patch, 3 parameters, "timestamp", "minTimestamp" and "maxiTimestamp" are added
to HBaseSparkConf. Users can select a timestamp, they can also select a time range with minimum
timestamp and maximum timestamp. A new test for selecting records with different timestamps
is added.



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