Add a HTable get method that retrieves all versions of a particular column and
row between two timestamps
---------------------------------------------------------------------------------------------------------
Key: HADOOP-2554
URL: https://issues.apache.org/jira/browse/HADOOP-2554
Project: Hadoop
Issue Type: New Feature
Components: contrib/hbase
Reporter: Peter Dolan
Priority: Minor
The use case:
* A weblog application for which rows are user ids and posts are stored in a
single column, with post date specified by the cell's timestamp. The
application would then need to be able to display all posts for the last week
or month.
* A feedfetcher for which rows are URLs and feed posts are stored in a single
column with the post publish date or fetch time stored in the cell's timestamp.
The application would then need to be able to display all posts for the last
week or month.
Proposed API:
/**
* Get all versions of the specified row and column whose timestamps are in
[minTimestamp, maxTimestamp]
*/
Map<long, byte[]> getRowTimestamps(Text row, Text column, long minTimestamp,
long maxTimestamp);
/**
* Get all versions of the specified row and column whose timestamps are >=
minTimestamp
*/
Map<long, byte[]> getRowTimestamps(Text row, Text column, long minTimestamp);
I'd be happy to take this on myself, as I need it for the above use cases
before migrating my application over to HBase.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
