Hi, If I am not wrong, Cassandra supports composite keys [1]. You will find the documentation at [2].
HBase doesn't support composite keys [3]. I don't know about the rest of the backends :( [1] - https://issues.apache.org/jira/browse/GORA-267 [2] - http://gora.apache.org/current/gora-cassandra.html [3] - https://github.com/apache/gora/blob/apache-gora-0.8/gora-hbase/src/main/java/org/apache/gora/hbase/util/HBaseByteInterface.java#L179 Regards, Alfonso Nishikawa 2018-06-26 4:08 GMT-01:00 carlos muñoz <carlosr...@gmail.com>: > Hi. > > While implementing some functionalities of the new Ignite backend, I > noticed that Ignite supports composite primary keys. So I wondered if such > feature could be useful within Gora or it is better to restrict persistent > entities to have a single primary key field. Have other backends already > dealt with that?. > > Regards. > Carlos >