{"action":"created","comment":{"url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/comments/31142159","id":31142159,"diff_hunk":"@@ -46,6 +46,22 @@ message TimeSeriesData {\n   repeated TimeSeriesDatapoint datapoints = 3;\n }\n \n+// TimeSeriesQueryAggregator describes a set of aggregation functions which are\n+// applied to data points before returning them as part of a query. \n+//\n+// Cockroach does not store data points at full fidelity, instead \"downsampling\"\n+// data points into fixed-length sample periods. The value returned for each\n+// sample period is equivalent to applying the supplied aggregator function to\n+// the original data points that fell within the sample period.\n+enum TimeSeriesQueryAggregator {\n+  // AVG returns the average value of points within the sample period.\n+  AVG = 1;\n+  // AVG_RATE returns the differential of the average for the sample period.","path":"proto/timeseries.proto","position":14,"original_position":14,"commit_id":"bd713808c843da814c2a3c1b08ab76d36886f07c","original_commit_id":"bd713808c843da814c2a3c1b08ab76d36886f07c","user":{"login":"tamird","id":1535036,"avatar_url":"https://avatars.githubusercontent.com/u/1535036?v=3","gravatar_id":"","url":"https://api.github.com/users/tamird","html_url":"https://github.com/tamird","followers_url":"https://api.github.com/users/tamird/followers","following_url":"https://api.github.com/users/tamird/following{/other_user}","gists_url":"https://api.github.com/users/tamird/gists{/gist_id}","starred_url":"https://api.github.com/users/tamird/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tamird/subscriptions","organizations_url":"https://api.github.com/users/tamird/orgs","repos_url":"https://api.github.com/users/tamird/repos","events_url":"https://api.github.com/users/tamird/events{/privacy}","received_events_url":"https://api.github.com/users/tamird/received_events","type":"User","site_admin":false},"body":"nit: differential is not the right term here. How about \"time derivative\"?","created_at":"2015-05-27T14:57:27Z","updated_at":"2015-05-27T14:57:27Z","html_url":"https://github.com/cockroachdb/cockroach/pull/1153#discussion_r31142159","pull_request_url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/1153","_links":{"self":{"href":"https://api.github.com/repos/cockroachdb/cockroach/pulls/comments/31142159"},"html":{"href":"https://github.com/cockroachdb/cockroach/pull/1153#discussion_r31142159"},"pull_request":{"href":"https://api.github.com/repos/cockroachdb/cockroach/pulls/1153"}}},"pull_request":{"url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/1153","id":36269032,"html_url":"https://github.com/cockroachdb/cockroach/pull/1153","diff_url":"https://github.com/cockroachdb/cockroach/pull/1153.diff","patch_url":"https://github.com/cockroachdb/cockroach/pull/1153.patch","issue_url":"https://api.github.com/repos/cockroachdb/cockroach/issues/1153","number":1153,"state":"open","locked":false,"title":"Add Time Series Rate Aggregator","user":{"login":"mrtracy","id":6969858,"avatar_url":"https://avatars.githubusercontent.com/u/6969858?v=3","gravatar_id":"","url":"https://api.github.com/users/mrtracy","html_url":"https://github.com/mrtracy","followers_url":"https://api.github.com/users/mrtracy/followers","following_url":"https://api.github.com/users/mrtracy/following{/other_user}","gists_url":"https://api.github.com/users/mrtracy/gists{/gist_id}","starred_url":"https://api.github.com/users/mrtracy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mrtracy/subscriptions","organizations_url":"https://api.github.com/users/mrtracy/orgs","repos_url":"https://api.github.com/users/mrtracy/repos","events_url":"https://api.github.com/users/mrtracy/events{/privacy}","received_events_url":"https://api.github.com/users/mrtracy/received_events","type":"User","site_admin":false},"body":"Introduces the concept of an Aggregator function to time series queries. Time\r\nseries now have a choice of two aggregation functions, Average and Rate.\r\n\r\nAverage captures the previous behavior, where queries return the average value\r\nof each sample period. Rate returns the rate of change for the series at each\r\nsample period; the rate denominator is the length of the sample period\r\n(currently 10 seconds for all metrics).\r\n\r\nMore work needs to be done to expose the sample period length in queries,\r\nespecially in the case of Rate; this should be considered a partially complete\r\nwork, which is desired to support upcoming product demos.","created_at":"2015-05-27T04:46:30Z","updated_at":"2015-05-27T14:57:27Z","closed_at":null,"merged_at":null,"merge_commit_sha":"cf1c4c9db87ee2a7aac512c2afc1b53f6d1ca8a4","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/1153/commits","review_comments_url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/1153/comments","review_comment_url":"https://api.github.com/repos/cockroachdb/cockroach/pulls/comments{/number}","comments_url":"https://api.github.com/repos/cockroachdb/cockroach/issues/1153/comments","statuses_url":"https://api.github.com/repos/cockroachdb/cockroach/statuses/bd713808c843da814c2a3c1b08ab76d36886f07c","head":{"label":"cockroachdb:mtracy/time_series_rate","ref":"mtracy/time_series_rate","sha":"bd713808c843da814c2a3c1b08ab76d36886f07c","user":{"login":"cockroachdb","id":6748139,"avatar_url":"https://avatars.githubusercontent.com/u/6748139?v=3","gravatar_id":"","url":"https://api.github.com/users/cockroachdb","html_url":"https://github.com/cockroachdb","followers_url":"https://api.github.com/users/cockroachdb/followers","following_url":"https://api.github.com/users/cockroachdb/following{/other_user}","gists_url":"https://api.github.com/users/cockroachdb/gists{/gist_id}","starred_url":"https://api.github.com/users/cockroachdb/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cockroachdb/subscriptions","organizations_url":"https://api.github.com/users/cockroachdb/orgs","repos_url":"https://api.github.com/users/cockroachdb/repos","events_url":"https://api.github.com/users/cockroachdb/events{/privacy}","received_events_url":"https://api.github.com/users/cockroachdb/received_events","type":"Organization","site_admin":false},"repo":{"id":16563587,"name":"cockroach","full_name":"cockroachdb/cockroach","owner":{"login":"cockroachdb","id":6748139,"avatar_url":"https://avatars.githubusercontent.com/u/6748139?v=3","gravatar_id":"","url":"https://api.github.com/users/cockroachdb","html_url":"https://github.com/cockroachdb","followers_url":"https://api.github.com/users/cockroachdb/followers","following_url":"https://api.github.com/users/cockroachdb/following{/other_user}","gists_url":"https://api.github.com/users/cockroachdb/gists{/gist_id}","starred_url":"https://api.github.com/users/cockroachdb/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cockroachdb/subscriptions","organizations_url":"https://api.github.com/users/cockroachdb/orgs","repos_url":"https://api.github.com/users/cockroachdb/repos","events_url":"https://api.github.com/users/cockroachdb/events{/privacy}","received_events_url":"https://api.github.com/users/cockroachdb/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/cockroachdb/cockroach","description":"A 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