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Posted to dev@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2008/09/02 23:01:45 UTC
[jira] Commented: (HBASE-861) get with timestamp will return a
value if there is a version with an earlier timestamp
[ https://issues.apache.org/jira/browse/HBASE-861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627809#action_12627809 ]
Andrew Purtell commented on HBASE-861:
--------------------------------------
I noticed this behavior back at 0.1.0. I thought the semantics were "give me whatever is most current for timestamp X", then backwards from there up to max_versions?
> get with timestamp will return a value if there is a version with an earlier timestamp
> --------------------------------------------------------------------------------------
>
> Key: HBASE-861
> URL: https://issues.apache.org/jira/browse/HBASE-861
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.2.0, 0.2.1, 0.18.0
> Reporter: Jim Kellerman
> Priority: Critical
> Fix For: 0.2.1, 0.18.0
>
> Attachments: TestGetTimestamp.java
>
>
> When an explicit timestamp is specified, no results should be returned if there is no value stored at that timestamp.
> A value should be returned (as it currently is) if the timestamp is defaulted or is LATEST_TIMESTAMP (which is the same thing). This works correctly.
> Table name "web", columns: "contents:", "anchor:"
> store com.cnn.www/contents:/5 value = "t5"
> store com.cnn.www/anchor:my.look.ca:/8 value = "CNN.com"
> com.cnn.www/anchor:cnnsi.com/9 value = "CNN"
> get(com.cnn.www/contents:/8) should return nothing but returns value="t5", timestamp=5
> get(com.cnn.www/anchor:my.look.ca:/9) should return nothing, but returns value="CNN.com", timestamp=8
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