{"action":"reopened","number":2263,"pull_request":{"url":"https://api.github.com/repos/druid-io/druid/pulls/2263","id":55979611,"html_url":"https://github.com/druid-io/druid/pull/2263","diff_url":"https://github.com/druid-io/druid/pull/2263.diff","patch_url":"https://github.com/druid-io/druid/pull/2263.patch","issue_url":"https://api.github.com/repos/druid-io/druid/issues/2263","number":2263,"state":"open","locked":false,"title":"Allow IncrementalIndex to store Long/Float dimensions","user":{"login":"jon-wei","id":8729063,"avatar_url":"https://avatars.githubusercontent.com/u/8729063?v=3","gravatar_id":"","url":"https://api.github.com/users/jon-wei","html_url":"https://github.com/jon-wei","followers_url":"https://api.github.com/users/jon-wei/followers","following_url":"https://api.github.com/users/jon-wei/following{/other_user}","gists_url":"https://api.github.com/users/jon-wei/gists{/gist_id}","starred_url":"https://api.github.com/users/jon-wei/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jon-wei/subscriptions","organizations_url":"https://api.github.com/users/jon-wei/orgs","repos_url":"https://api.github.com/users/jon-wei/repos","events_url":"https://api.github.com/users/jon-wei/events{/privacy}","received_events_url":"https://api.github.com/users/jon-wei/received_events","type":"User","site_admin":false},"body":"This PR updates IncrementalIndex such that it can ingest and store Long/Float dimensions in addition to Strings. It is intended as a step towards the larger goals being discussed in the following topic:\r\n\r\nhttps://groups.google.com/forum/#!topic/druid-development/obtfNJnXPDg/discussion\r\n\r\n* DimDim is now a generic class instead of assuming String values. The TimeAndDims grouping key class now stores dimension values as Comparable[] instead of String[].\r\n\r\n* The PR does not change the DimensionSelector or *Adapter interfaces to support non-String types, so query/index persist behavior is unchanged, nor does this PR provide a way for the user to specify non-String dimension types in the ingestion schema. \r\n\r\n* Schema-less dimension type discovery is not enabled in the PR (newly discovered dims are assumed to be Strings). \r\n\r\n* The PR includes a JMH benchmark that adds rows with Long/Float/String columns to an IncrementalIndex.\r\n\r\nI ran the row-adding benchmark with type discovery enabled for testing purposes and the numbers are shown below:\r\n\r\n```\r\njava -jar target/benchmarks.jar IncrementalIndexAddRowsBenchmark -f 1 -i 20 -wi 10\r\n```\r\n\r\nWith patch, non-String dims:\r\n```\r\nRun complete. Total time: 00:08:05\r\n\r\nBenchmark                                       Mode  Cnt   Score   Error  Units\r\nIncrementalIndexAddRowsBenchmark.normalFloats   avgt   20  18.918 ± 3.063  us/op\r\nIncrementalIndexAddRowsBenchmark.normalLongs    avgt   20  10.783 ± 0.394  us/op\r\nIncrementalIndexAddRowsBenchmark.normalStrings  avgt   20  28.218 ± 2.513  us/op\r\n```\r\nWithout patch, String dims only:\r\n```\r\nRun complete. Total time: 00:09:34\r\n\r\nBenchmark                                       Mode  Cnt   Score   Error  Units\r\nIncrementalIndexAddRowsBenchmark.normalFloats   avgt   20  19.977 ± 2.803  us/op\r\nIncrementalIndexAddRowsBenchmark.normalLongs    avgt   20  20.520 ± 3.298  us/op\r\nIncrementalIndexAddRowsBenchmark.normalStrings  avgt   20  29.656 ± 3.261  us/op\r\n```","created_at":"2016-01-14T00:59:28Z","updated_at":"2016-01-22T00:16:17Z","closed_at":null,"merged_at":null,"merge_commit_sha":"d9a17e29e880b6689cf3abe12d442e8f25da2dc1","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/druid-io/druid/pulls/2263/commits","review_comments_url":"https://api.github.com/repos/druid-io/druid/pulls/2263/comments","review_comment_url":"https://api.github.com/repos/druid-io/druid/pulls/comments{/number}","comments_url":"https://api.github.com/repos/druid-io/druid/issues/2263/comments","statuses_url":"https://api.github.com/repos/druid-io/druid/statuses/f5843fcb0c777a15d97bbc3a1063e38911d850ae","head":{"label":"jon-wei:flex_dims3","ref":"flex_dims3","sha":"f5843fcb0c777a15d97bbc3a1063e38911d850ae","user":{"login":"jon-wei","id":8729063,"avatar_url":"https://avatars.githubusercontent.com/u/8729063?v=3","gravatar_id":"","url":"https://api.github.com/users/jon-wei","html_url":"https://github.com/jon-wei","followers_url":"https://api.github.com/users/jon-wei/followers","following_url":"https://api.github.com/users/jon-wei/following{/other_user}","gists_url":"https://api.github.com/users/jon-wei/gists{/gist_id}","starred_url":"https://api.github.com/users/jon-wei/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jon-wei/subscriptions","organizations_url":"https://api.github.com/users/jon-wei/orgs","repos_url":"https://api.github.com/users/jon-wei/repos","events_url":"https://api.github.com/users/jon-wei/events{/privacy}","received_events_url":"https://api.github.com/users/jon-wei/received_events","type":"User","site_admin":false},"repo":{"id":41450391,"name":"druid","full_name":"jon-wei/druid","owner":{"login":"jon-wei","id":8729063,"avatar_url":"https://avatars.githubusercontent.com/u/8729063?v=3","gravatar_id":"","url":"https://api.github.com/users/jon-wei","html_url":"https://github.com/jon-wei","followers_url":"https://api.github.com/users/jon-wei/followers","following_url":"https://api.github.com/users/jon-wei/following{/other_user}","gists_url":"https://api.github.com/users/jon-wei/gists{/gist_id}","starred_url":"https://api.github.com/users/jon-wei/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jon-wei/subscriptions","organizations_url":"https://api.github.com/users/jon-wei/orgs","repos_url":"https://api.github.com/users/jon-wei/repos","events_url":"https://api.github.com/users/jon-wei/events{/privacy}","received_events_url":"https://api.github.com/users/jon-wei/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/jon-wei/druid","description":"Column 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