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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hbase/HbaseFeatureRequests" by stack
Date Sat, 19 Jan 2008 17:29:39 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The following page has been changed by stack:

The comment on the change is:
Feature Requests have been implemented or added to JIRA

- = Feature Requests =
+ deleted
- Feel free to add feature or enhancement requests below. Note that only in rare occasions
will a request be considered for the initial release to keep the effort focused.
- ----
-  * Add ability for the user to specify the timestamp of a row, much like in bigtable. (our
dataset is already mapped to a specific timestamp). Added ''2007-05-29 16:21:06 by johanoskarsson''
-   * '''Implemented'''.  See org.apache.hadoop.hbase.!TestTimestamp unit test.
-  * Add to HClient something like `HClient#getNearest(Text row, Text [] column, long timestamp)`
to return the results that fall closest to provided timestamp (Use case: wayback machine type
applications).   Also `HClient#getNearest(Text row, Text [] column, long timestamp, long delta)`
where `delta` is a maximum for how far to go into the future -- or past -- beyond the supplied
timestamp.  Added ''2007-05-29 by stack''
-  * Clients should be able to open an !OutputStream for putting a value into a table. Right
now the only interface for insertion is via a byte[], which severely limits the flexibility
of the system. Added ''2007-10-08 by stuhood''
-   * Tell us more Stu why you need this feature?  (Because you want to write BLOBs of multiple
Gigabytes into an hbase cell?)
-  * Add ability to read a cell's timestamp. This can be used for sorting columns or removing
old columns.
-   This is possible with scanners as next() returns the row key and the time stamp in the
H!StoreKey. Are you asking for a similar mechanism for get?

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