Hi Guys,
Recently I have started reading about Cassandra from the material available
on net. But I have very confused with the basic understanding of Cassandra.
I understand columnFamilies, supper columnFamilies but I have no clear
understanding of
<Keyspace Name="Twitter">
<ColumnFamily CompareWith="UTF8Type" Name="Statuses" />
<ColumnFamily CompareWith="UTF8Type" Name="StatusAudits" />
<ColumnFamily CompareWith="UTF8Type" Name="StatusRelationships"
CompareSubcolumnsWith="TimeUUIDType" ColumnType="Super" />
<ColumnFamily CompareWith="UTF8Type" Name="Users" />
<ColumnFamily CompareWith="UTF8Type" Name="UserRelationships"
CompareSubcolumnsWith="TimeUUIDType" ColumnType="Super" />
</Keyspace>
<ColumnFamily Name = "LocationUserIndexSCF"
CompareWith = "UTF8Types"
CompareSubcolumnsWith= "UTF8Type"
ColumnType = "Super"/>
1. I don't understand what is this *"CompareWith", "CompareSuperColumnWith",
"CompareSubcolumnsWith"* etc is?
2. What is *"UTF8Type", "TimeUUIDType", "LongType", "ASCIIType" *etc.. is
these are datatypes? as we have datatype in SQL, if so then is this is
datatype of value stored in this column family?
May be I am getting confused because I am mixing my Relational databases
fundamentals with distributed.
Please If someone can explain me significance of these things then it would
be very helpful.
Thanks in advance.
Please reply.
Sonia
