Author: dmeil
Date: Wed Feb 15 19:59:28 2012
New Revision: 1244681
URL: http://svn.apache.org/viewvc?rev=1244681&view=rev
Log:
hbase-5408. book.xml, moved "column metadata" section to top-level in Data
Model chapter.
Modified:
hbase/trunk/src/docbkx/book.xml
Modified: hbase/trunk/src/docbkx/book.xml
URL:
http://svn.apache.org/viewvc/hbase/trunk/src/docbkx/book.xml?rev=1244681&r1=1244680&r2=1244681&view=diff
==============================================================================
--- hbase/trunk/src/docbkx/book.xml (original)
+++ hbase/trunk/src/docbkx/book.xml Wed Feb 15 19:59:28 2012
@@ -290,16 +290,6 @@ try {
</para>
</section>
- <section xml:id="dm.column.metadata">
- <title>Column Metadata</title>
- <para>There is no store of column metadata outside of the internal
KeyValue instances for a ColumnFamily.
- Thus, while HBase can support not only a wide number of columns per
row, but a heterogenous set of columns
- between rows, it is your responsibility to keep track of the column
names.
- </para>
- <para>The only way to get a complete set of columns that exist for a
ColumnFamily is to process all the rows.
- For more information about how HBase stores data internally,
see <xref linkend="keyvalue" />.
- </para>
- </section>
</section>
@@ -537,6 +527,16 @@ htable.put(put);
</section>
</section>
</section>
+ <section xml:id="dm.column.metadata">
+ <title>Column Metadata</title>
+ <para>There is no store of column metadata outside of the internal
KeyValue instances for a ColumnFamily.
+ Thus, while HBase can support not only a wide number of columns per row,
but a heterogenous set of columns
+ between rows as well, it is your responsibility to keep track of the
column names.
+ </para>
+ <para>The only way to get a complete set of columns that exist for a
ColumnFamily is to process all the rows.
+ For more information about how HBase stores data internally, see <xref
linkend="keyvalue" />.
+ </para>
+ </section>
<section xml:id="joins"><title>Joins</title>
<para>Whether HBase supports joins is a common question on the
dist-list, and there is a simple answer: it doesn't,
at not least in the way that RDBMS' support them (e.g., with equi-joins
or outer-joins in SQL). As has been illustrated
