[Developers] Steps Toward a Complete History Export in Freebase

John Giannandrea jg at metaweb.com
Tue Jun 2 17:50:09 UTC 2009


Iain Sproat wrote:
> Modifying that query slightly, I've looked at the history for a  
> particular deleted topic ( say this example for the List of Cheers  
> Episodes, which I know has been deleted).  I notice that the  
> operations for adding delete flags or for removing /wikipedia/en_id  
> keys don't seem to be shown in the mql results

If you want to track value links (keys and such) dont specify the  
target clause.   /type/link has source, target and target_value  
properties.
This will let you see the entire history of that object:

[{
   "type":      "/type/link",
   "source": {
     "id": "/guid/9202a8c04000641f800000000552fb38"
   },
   "operation": null,
   "*":         null,
   "timestamp": null,
   "sort":      "-timestamp"
}]

-jg



More information about the Developers mailing list