cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Donal Zang <>
Subject Re: CompositeType for row Keys
Date Fri, 22 Jul 2011 15:38:46 GMT
If you are using OPP, then you can use CompositeType on both key and 
column name; otherwise(Random Partition), just use it for columns.
On 22/07/2011 17:10, Patrick Julien wrote:
> With the current implementation of CompositeType in Cassandra 0.8.1,
> is it recommended practice to try to use a CompositeType as the key?
> Or are both, column and key, equally well supported?
> The documentation on CompositeType is light, well non-existent really, with
> key_validation_class set to CompositeType (UUIDType, IntegerType)
> can we query all matching rows just by using CompositeType(UUIDType)?
> In my specific use case, what would work best is to have a composite
> key that is a CompositeType with thousands of columns each.

Donal Zang
Computing Center, IHEP
19B YuquanLu, Shijingshan District,Beijing, 100049
86 010 8823 6018

View raw message