hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jerry He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15572) Adding optional timestamp semantics to HBase-Spark
Date Wed, 06 Apr 2016 22:44:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15229280#comment-15229280
] 

Jerry He commented on HBASE-15572:
----------------------------------

There is another question.

Instead of putting the timestamp range as option properties to the DF table, can we think
about putting them as 'virtual' column in a way that they can appear in SQL statement. 
For example, (select col1 from hbaseTable where rowkey = 1 and TIMESTAMP  > 123345)

> 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,
HBASE-15572-5.patch, HBASE-15572-6.patch, HBASE-15572-7.patch, HBASE-15572-8.patch
>
>
> Right now the timestamp is always latest. With this patch, users can select timestamps
they want.
> In this patch, 4 parameters, "timestamp", "minTimestamp", "maxiTimestamp" and "maxVersions"
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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message