Re: Timeuuid inserted with now(), how to get the value back in Java client?
Snowflake could be useful https://github.com/twitter/snowflake/ On Sat, Mar 29, 2014 at 10:50 AM, Michael Kjellman mkjell...@barracuda.comwrote: Create a new Date() and insert that instead of using the NOW CQL macro. You have the time you inserted... Also, this is the type of question for the user list in the future. Hope that helps and I understood your question correctly. On Mar 28, 2014, at 4:46 PM, Andy Atj2 andya...@gmail.com wrote: I'm writing a Java client to a Cassandra db. One of the main primary keys is a timeuuid. I plan to do INSERTs using now() and have Cassandra generate the value of the timeuuid. After the INSERT, I need the Cassandra-generated timeuuid value. Is there an easy way to get it, without having to re-query for the record I just inserted, hoping to get only one record back? Remember, I don't have the PK. Eg, in every other db there's a way to get the generated PK back. In sql it's @@identity, in oracle its...etc etc. I know Cassandra is not an RDBMS. All I want is the value Cassandra just generated. Thanks, Andy === Find out how eSigning generates significant financial benefit. Read the Barracuda SignNow ROI whitepaper at https://signnow.com/l/business/esignature_roi
Re: Timeuuid inserted with now(), how to get the value back in Java client?
Nope. Better to generate it yourself if you need it immediately. On Mar 28, 2014 6:46 PM, Andy Atj2 andya...@gmail.com wrote: I'm writing a Java client to a Cassandra db. One of the main primary keys is a timeuuid. I plan to do INSERTs using now() and have Cassandra generate the value of the timeuuid. After the INSERT, I need the Cassandra-generated timeuuid value. Is there an easy way to get it, without having to re-query for the record I just inserted, hoping to get only one record back? Remember, I don't have the PK. Eg, in every other db there's a way to get the generated PK back. In sql it's @@identity, in oracle its...etc etc. I know Cassandra is not an RDBMS. All I want is the value Cassandra just generated. Thanks, Andy
Re: Timeuuid inserted with now(), how to get the value back in Java client?
Create a new Date() and insert that instead of using the NOW CQL macro. You have the time you inserted... Also, this is the type of question for the user list in the future. Hope that helps and I understood your question correctly. On Mar 28, 2014, at 4:46 PM, Andy Atj2 andya...@gmail.com wrote: I'm writing a Java client to a Cassandra db. One of the main primary keys is a timeuuid. I plan to do INSERTs using now() and have Cassandra generate the value of the timeuuid. After the INSERT, I need the Cassandra-generated timeuuid value. Is there an easy way to get it, without having to re-query for the record I just inserted, hoping to get only one record back? Remember, I don't have the PK. Eg, in every other db there's a way to get the generated PK back. In sql it's @@identity, in oracle its...etc etc. I know Cassandra is not an RDBMS. All I want is the value Cassandra just generated. Thanks, Andy === Find out how eSigning generates significant financial benefit. Read the Barracuda SignNow ROI whitepaper at https://signnow.com/l/business/esignature_roi
