How do I count the occurrences of each distinct requestId and plot it over time. First time the requestId was found will be fine for a datetime.
With this query I can plot count of each distinct requestId vs requestId. But I need it over time not requestId.
| stats count by requestId
e.g. search result event
2016-02-19 16:49:14,335 INFO [requestId=c4c6f44b-d28f-4cae-b679-2b1589584a06] [pool-48946-thread-1]
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