twitter/zipkin — pull request #356 by sprsquish (2014-03-09 16:18:31+00:00)
Title: de-duplicate span records in anormdb

The AnormDB data model is a bit wrong. Spans don't get stored as unique records. Because of this a span from the server and a span from the server get saved to the span table as two different records. Reading them out then causes duplicate data to be displayed in the UI.