Composite key with sequence

问题

I have a composite key in my table and part of it needs to be generated by a sequence.
I tried the following, but it doesn't work - the line that sets the sequence name seems to be overridden by the composite key declaration that follows:

mapping.Id(x => x.Id).GeneratedBy.SequenceIdentity("SQ_TRANSFORM_ITEMDEL_IDDID");
mapping.CompositeId().KeyProperty(x => x.Id, "ITEMDELIVERYDETAIL_ID")
                     .KeyReference(x => x.ItemDelivery, "ITEMDELIVERY_ID",
                                                        "PARTITIONDATE");

How to solve that problem?

回答1:

Don't map ItemDelivery in a CompositeId but as a Reference see answer in your other question. It's much easier overall.

来源：https://stackoverflow.com/questions/8493128/composite-key-with-sequence