{"action":"created","comment":{"url":"https://api.github.com/repos/pivotalsoftware/quickstep/pulls/comments/56083647","id":56083647,"diff_hunk":"@@ -322,6 +322,62 @@ void StorageBlock::selectSimple(const std::vector<attribute_id> &selection,\n                                                       accessor.get());\n }\n \n+void StorageBlock::selectSample(const bool is_block_sample,\n+                                const int percentage,\n+                                InsertDestinationInterface *destination) const {\n+  std::unique_ptr<ValueAccessor> accessor;\n+  // Bulk insert if the sampling method is block sample or if the sample\n+  // percent is 100\n+  if (is_block_sample || percentage == 100) {\n+    accessor.reset(tuple_store_->createValueAccessor());\n+    destination->bulkInsertTuples(accessor.get());\n+  } else {\n+    int needed_percentage = percentage;\n+    std::random_device rd;","path":"storage/StorageBlock.cpp","position":15,"original_position":15,"commit_id":"310f83fd30e561db270ac7d25e75b59833e7d175","original_commit_id":"310f83fd30e561db270ac7d25e75b59833e7d175","user":{"login":"zuyu","id":2245572,"avatar_url":"https://avatars.githubusercontent.com/u/2245572?v=3","gravatar_id":"","url":"https://api.github.com/users/zuyu","html_url":"https://github.com/zuyu","followers_url":"https://api.github.com/users/zuyu/followers","following_url":"https://api.github.com/users/zuyu/following{/other_user}","gists_url":"https://api.github.com/users/zuyu/gists{/gist_id}","starred_url":"https://api.github.com/users/zuyu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zuyu/subscriptions","organizations_url":"https://api.github.com/users/zuyu/orgs","repos_url":"https://api.github.com/users/zuyu/repos","events_url":"https://api.github.com/users/zuyu/events{/privacy}","received_events_url":"https://api.github.com/users/zuyu/received_events","type":"User","site_admin":false},"body":"Rename `rd` to `random_number_generator`.","created_at":"2016-03-14T21:58:43Z","updated_at":"2016-03-14T21:58:43Z","html_url":"https://github.com/pivotalsoftware/quickstep/pull/84#discussion_r56083647","pull_request_url":"https://api.github.com/repos/pivotalsoftware/quickstep/pulls/84","_links":{"self":{"href":"https://api.github.com/repos/pivotalsoftware/quickstep/pulls/comments/56083647"},"html":{"href":"https://github.com/pivotalsoftware/quickstep/pull/84#discussion_r56083647"},"pull_request":{"href":"https://api.github.com/repos/pivotalsoftware/quickstep/pulls/84"}}},"pull_request":{"url":"https://api.github.com/repos/pivotalsoftware/quickstep/pulls/84","id":62761001,"html_url":"https://github.com/pivotalsoftware/quickstep/pull/84","diff_url":"https://github.com/pivotalsoftware/quickstep/pull/84.diff","patch_url":"https://github.com/pivotalsoftware/quickstep/pull/84.patch","issue_url":"https://api.github.com/repos/pivotalsoftware/quickstep/issues/84","number":84,"state":"open","locked":false,"title":"Quickstep sample operator","user":{"login":"rogersjeffreyl","id":5336122,"avatar_url":"https://avatars.githubusercontent.com/u/5336122?v=3","gravatar_id":"","url":"https://api.github.com/users/rogersjeffreyl","html_url":"https://github.com/rogersjeffreyl","followers_url":"https://api.github.com/users/rogersjeffreyl/followers","following_url":"https://api.github.com/users/rogersjeffreyl/following{/other_user}","gists_url":"https://api.github.com/users/rogersjeffreyl/gists{/gist_id}","starred_url":"https://api.github.com/users/rogersjeffreyl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rogersjeffreyl/subscriptions","organizations_url":"https://api.github.com/users/rogersjeffreyl/orgs","repos_url":"https://api.github.com/users/rogersjeffreyl/repos","events_url":"https://api.github.com/users/rogersjeffreyl/events{/privacy}","received_events_url":"https://api.github.com/users/rogersjeffreyl/received_events","type":"User","site_admin":false},"body":"This PR is for adding  operator support for the sample operator.  For now support is available only for sample on the stored relations. 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