matching UUID and ID?

[bmeck]

Given something akin to the following:

Doc=require('crdt').Doc;
dns_a = new Doc();
dns_b = new Doc();

dns_a.add({id:'?',a:1, b:3});
dns_b.add({id:'?',a:2,b:2});

Is there a guaranteed history order when the update UUIDs match the same point in time (across a network partition)? Will it pick a random UUID between the 2?

[dominictarr]

if the timestamp is equal (highly unlikely, unless adding data very rapidly) then the tie is broken by sorting on origin id.

dns_a.add({id:ID,a:1, b:3});

Here, ID only refers to that record, update with the same id will overwrite the previous, depending on which was most recent. (depends on network time accuracy being more fine grained than the update frequency) this is not a problem if each node is only updating it's own records though.

the timestamp is not exposed to the user, but doc.id is the origin id. you can set that manually when you call new Doc(id)

[bmeck]

Thanks, may add a pr tonight documenting that.

[dominictarr]

sweet!