> is there any downside using text as primary key? any performance impact on > the partition ? Nope.
> There is no way to alter a table's primary key with a cql command, that is > what i have read, migrating to a new table seems to be the only way. Yup. > Is there any good recommendation how to do this? cqlsh copy or jsonsttable > seems like will all result in same datatype as before. * create the new table * backfill data to it while your app is writing to both the old and the new * stop writing to the old * drop the old. Cheers ----------------- Aaron Morton New Zealand @aaronmorton Co-Founder & Principal Consultant Apache Cassandra Consulting http://www.thelastpickle.com On 28/09/2013, at 4:05 AM, Jimmy Lin <y2klyf+w...@gmail.com> wrote: > hi, > we have a table that its primary key is uuid type. Now we decide that we need > to use text type as it is more flexible for our application. > > #1 > is there any downside using text as primary key? any performance impact on > the partition ? > > #2 > There is no way to alter a table's primary key with a cql command, that is > what i have read, migrating to a new table seems to be the only way. > Is there any good recommendation how to do this? cqlsh copy or jsonsttable > seems like will all result in same datatype as before. > > thanks >
