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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hbase/Glossary" by EvgenyRyabitskiy
Date Sun, 05 Apr 2009 12:46:18 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 EvgenyRyabitskiy:

New page:
= Glossary =

== Table ==

HBase Table is three dimensional sorted map. It maps from Cartesian product of row key, column
key and timestamp to cell value:

'''(row:byte[] x column:byte[] x timestamp:Long) -> byte[]'''

All HBase data is stored in cell of tables.

== Row ==

One of HBase Table dimensions. I has Row Key that is arbitrary array of bytes. Table is sorted
in lexicographical order by it's Row Key.

== Column ==

One of HBase Table dimensions. A column name has the form "<family>:<label>" where
<family> and <label> can be arbitrary byte arrays. A table enforces its set of
<family>s (called "column families"). 

== Column Family ==

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