{"action":"created","issue":{"url":"https://api.github.com/repos/linkedin/pinot/issues/330","repository_url":"https://api.github.com/repos/linkedin/pinot","labels_url":"https://api.github.com/repos/linkedin/pinot/issues/330/labels{/name}","comments_url":"https://api.github.com/repos/linkedin/pinot/issues/330/comments","events_url":"https://api.github.com/repos/linkedin/pinot/issues/330/events","html_url":"https://github.com/linkedin/pinot/pull/330","id":168728500,"number":330,"title":"add hll column in segment with startree","user":{"login":"victor2100","id":1632918,"avatar_url":"https://avatars.githubusercontent.com/u/1632918?v=3","gravatar_id":"","url":"https://api.github.com/users/victor2100","html_url":"https://github.com/victor2100","followers_url":"https://api.github.com/users/victor2100/followers","following_url":"https://api.github.com/users/victor2100/following{/other_user}","gists_url":"https://api.github.com/users/victor2100/gists{/gist_id}","starred_url":"https://api.github.com/users/victor2100/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/victor2100/subscriptions","organizations_url":"https://api.github.com/users/victor2100/orgs","repos_url":"https://api.github.com/users/victor2100/repos","events_url":"https://api.github.com/users/victor2100/events{/privacy}","received_events_url":"https://api.github.com/users/victor2100/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-08-01T19:58:12Z","updated_at":"2016-08-23T20:56:52Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/linkedin/pinot/pulls/330","html_url":"https://github.com/linkedin/pinot/pull/330","diff_url":"https://github.com/linkedin/pinot/pull/330.diff","patch_url":"https://github.com/linkedin/pinot/pull/330.patch"},"body":"This PR is the first step in integration of hyperloglog with startree index.\r\nThe detailed changes are follows:\r\n\r\n1. Update MetricBuffer to support hll column, and the merge process. The hll column is stored in byte array and under type String, so all existing logic remains untacted.\r\n\r\n2. Add hll column initialization logic in OffHeapStarTreeBuilder.\r\n\r\n3. Add configs of hll column.\r\n\r\n4. Unit Tests to ensure hll column and aggregation works. Integration tests will be added after query execution logic being updated in startree related operators."},"comment":{"url":"https://api.github.com/repos/linkedin/pinot/issues/comments/241875848","html_url":"https://github.com/linkedin/pinot/pull/330#issuecomment-241875848","issue_url":"https://api.github.com/repos/linkedin/pinot/issues/330","id":241875848,"user":{"login":"Jackie-Jiang","id":17555551,"avatar_url":"https://avatars.githubusercontent.com/u/17555551?v=3","gravatar_id":"","url":"https://api.github.com/users/Jackie-Jiang","html_url":"https://github.com/Jackie-Jiang","followers_url":"https://api.github.com/users/Jackie-Jiang/followers","following_url":"https://api.github.com/users/Jackie-Jiang/following{/other_user}","gists_url":"https://api.github.com/users/Jackie-Jiang/gists{/gist_id}","starred_url":"https://api.github.com/users/Jackie-Jiang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Jackie-Jiang/subscriptions","organizations_url":"https://api.github.com/users/Jackie-Jiang/orgs","repos_url":"https://api.github.com/users/Jackie-Jiang/repos","events_url":"https://api.github.com/users/Jackie-Jiang/events{/privacy}","received_events_url":"https://api.github.com/users/Jackie-Jiang/received_events","type":"User","site_admin":false},"created_at":"2016-08-23T20:56:52Z","updated_at":"2016-08-23T20:56:52Z","body":"LGTM."}}
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