hbase-5252.  book.xml, added section in Data Model about joins
hbase-5252.  book.xml, added section in Data Model about joins

git-svn-id: 949c06ec81f1cb709fd2be51dd530a930344d7b3@1234674 13f79535-47bb-0310-9956-ffa450edef68

mapr/hbase,drewpope/hbase,juwi/hbase,toshimasa-nasu/hbase,ibmsoe/hbase,drewpope/hbase,JingchengDu/hbase,mahak/hbase,joshelser/hbase,andrewmains12/hbase,SeekerResource/hbase,joshelser/hbase,apurtell/hbase,joshelser/hbase,joshelser/hbase,Apache9/hbase,ndimiduk/hbase,ChinmaySKulkarni/hbase,HubSpot/hbase,vincentpoon/hbase,ndimiduk/hbase,bijugs/hbase,lshmouse/hbase,vincentpoon/hbase,ChinmaySKulkarni/hbase,juwi/hbase,vincentpoon/hbase,mahak/hbase,Apache9/hbase,amyvmiwei/hbase,StackVista/hbase,narendragoyal/hbase,joshelser/hbase,drewpope/hbase,toshimasa-nasu/hbase,joshelser/hbase,apurtell/hbase,apurtell/hbase,gustavoanatoly/hbase,ultratendency/hbase,amyvmiwei/hbase,ndimiduk/hbase,Apache9/hbase,lshmouse/hbase,Guavus/hbase,andrewmains12/hbase,andrewmains12/hbase,amyvmiwei/hbase,ibmsoe/hbase,StackVista/hbase,bijugs/hbase,Eshcar/hbase,Apache9/hbase,SeekerResource/hbase,ultratendency/hbase,amyvmiwei/hbase,toshimasa-nasu/hbase,francisliu/hbase,Apache9/hbase,gustavoanatoly/hbase,infospace/hbase,ibmsoe/hbase,Guavus/hbase,lshmouse/hbase,infospace/hbase,ultratendency/hbase,ndimiduk/hbase,JingchengDu/hbase,francisliu/hbase,andrewmains12/hbase,apurtell/hbase,justintung/hbase,amyvmiwei/hbase,JingchengDu/hbase,toshimasa-nasu/hbase,bijugs/hbase,gustavoanatoly/hbase,Guavus/hbase,StackVista/hbase,StackVista/hbase,Apache9/hbase,andrewmains12/hbase,JingchengDu/hbase,gustavoanatoly/hbase,vincentpoon/hbase,mapr/hbase,Eshcar/hbase,HubSpot/hbase,justintung/hbase,bijugs/hbase,ChinmaySKulkarni/hbase,drewpope/hbase,juwi/hbase,SeekerResource/hbase,ChinmaySKulkarni/hbase,infospace/hbase,bijugs/hbase,HubSpot/hbase,francisliu/hbase,justintung/hbase,joshelser/hbase,intel-hadoop/hbase-rhino,Guavus/hbase,justintung/hbase,StackVista/hbase,vincentpoon/hbase,francisliu/hbase,Guavus/hbase,JingchengDu/hbase,StackVista/hbase,Eshcar/hbase,HubSpot/hbase,toshimasa-nasu/hbase,intel-hadoop/hbase-rhino,ultratendency/hbase,ibmsoe/hbase,lshmouse/hbase,bijugs/hbase,mahak/hbase,andrewmains12/hbase,juwi/hbase,Eshcar/hbase,lshmouse/hbase,justintung/hbase,StackVista/hbase,andrewmains12/hbase,ultratendency/hbase,intel-hadoop/hbase-rhino,SeekerResource/hbase,JingchengDu/hbase,mahak/hbase,JingchengDu/hbase,vincentpoon/hbase,intel-hadoop/hbase-rhino,HubSpot/hbase,Guavus/hbase,narendragoyal/hbase,Guavus/hbase,infospace/hbase,drewpope/hbase,mapr/hbase,ChinmaySKulkarni/hbase,narendragoyal/hbase,SeekerResource/hbase,juwi/hbase,ibmsoe/hbase,justintung/hbase,intel-hadoop/hbase-rhino,apurtell/hbase,francisliu/hbase,toshimasa-nasu/hbase,intel-hadoop/hbase-rhino,SeekerResource/hbase,StackVista/hbase,Eshcar/hbase,mapr/hbase,narendragoyal/hbase,juwi/hbase,gustavoanatoly/hbase,ultratendency/hbase,mahak/hbase,intel-hadoop/hbase-rhino,JingchengDu/hbase,vincentpoon/hbase,StackVista/hbase,intel-hadoop/hbase-rhino,amyvmiwei/hbase,drewpope/hbase,bijugs/hbase,SeekerResource/hbase,ndimiduk/hbase,infospace/hbase,StackVista/hbase,intel-hadoop/hbase-rhino,ibmsoe/hbase,lshmouse/hbase,SeekerResource/hbase,Eshcar/hbase,Guavus/hbase,amyvmiwei/hbase,SeekerResource/hbase,ultratendency/hbase,andrewmains12/hbase,toshimasa-nasu/hbase,Apache9/hbase,gustavoanatoly/hbase,andrewmains12/hbase,ibmsoe/hbase,drewpope/hbase,mapr/hbase,bijugs/hbase,Apache9/hbase,gustavoanatoly/hbase,narendragoyal/hbase,Eshcar/hbase,apurtell/hbase,apurtell/hbase,mahak/hbase,ultratendency/hbase,ultratendency/hbase,ibmsoe/hbase,francisliu/hbase,lshmouse/hbase,HubSpot/hbase,juwi/hbase,narendragoyal/hbase,mapr/hbase,amyvmiwei/hbase,ndimiduk/hbase,francisliu/hbase,justintung/hbase,Eshcar/hbase,mahak/hbase,justintung/hbase,JingchengDu/hbase,HubSpot/hbase,justintung/hbase,vincentpoon/hbase,amyvmiwei/hbase,ndimiduk/hbase,lshmouse/hbase,mahak/hbase,HubSpot/hbase,ndimiduk/hbase,drewpope/hbase,ultratendency/hbase,francisliu/hbase,HubSpot/hbase,ibmsoe/hbase,francisliu/hbase,SeekerResource/hbase,infospace/hbase,andrewmains12/hbase,Apache9/hbase,mapr/hbase,Apache9/hbase,lshmouse/hbase,mapr/hbase,ndimiduk/hbase,ChinmaySKulkarni/hbase,gustavoanatoly/hbase,Guavus/hbase,ChinmaySKulkarni/hbase,bijugs/hbase,lshmouse/hbase,narendragoyal/hbase,ChinmaySKulkarni/hbase,toshimasa-nasu/hbase,bijugs/hbase,joshelser/hbase,joshelser/hbase,francisliu/hbase,ChinmaySKulkarni/hbase,JingchengDu/hbase,HubSpot/hbase,toshimasa-nasu/hbase,juwi/hbase,mapr/hbase,infospace/hbase,ibmsoe/hbase,Guavus/hbase,juwi/hbase,joshelser/hbase,ndimiduk/hbase,gustavoanatoly/hbase,justintung/hbase,amyvmiwei/hbase,apurtell/hbase,narendragoyal/hbase,narendragoyal/hbase,mahak/hbase,vincentpoon/hbase,Eshcar/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,mahak/hbase,Eshcar/hbase,narendragoyal/hbase,vincentpoon/hbase,drewpope/hbase,apurtell/hbase,intel-hadoop/hbase-rhino,gustavoanatoly/hbase