payload: {"action":"created","issue":{"url":"https://api.github.com/repos/pachyderm/pachyderm/issues/3665","repository_url":"https://api.github.com/repos/pachyderm/pachyderm","labels_url":"https://api.github.com/repos/pachyderm/pachyderm/issues/3665/labels{/name}","comments_url":"https://api.github.com/repos/pachyderm/pachyderm/issues/3665/comments","events_url":"https://api.github.com/repos/pachyderm/pachyderm/issues/3665/events","html_url":"https://github.com/pachyderm/pachyderm/issues/3665","id":435255703,"node_id":"MDU6SXNzdWU0MzUyNTU3MDM=","number":3665,"title":"Documentation for cross and union should list glob patterns","user":{"login":"kanzure","id":101238,"node_id":"MDQ6VXNlcjEwMTIzOA==","avatar_url":"https://avatars1.githubusercontent.com/u/101238?v=4","gravatar_id":"","url":"https://api.github.com/users/kanzure","html_url":"https://github.com/kanzure","followers_url":"https://api.github.com/users/kanzure/followers","following_url":"https://api.github.com/users/kanzure/following{/other_user}","gists_url":"https://api.github.com/users/kanzure/gists{/gist_id}","starred_url":"https://api.github.com/users/kanzure/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kanzure/subscriptions","organizations_url":"https://api.github.com/users/kanzure/orgs","repos_url":"https://api.github.com/users/kanzure/repos","events_url":"https://api.github.com/users/kanzure/events{/privacy}","received_events_url":"https://api.github.com/users/kanzure/received_events","type":"User","site_admin":false},"labels":[{"id":407197866,"node_id":"MDU6TGFiZWw0MDcxOTc4NjY=","url":"https://api.github.com/repos/pachyderm/pachyderm/labels/docs","name":"docs","color":"5319e7","default":false}],"state":"open","locked":false,"assignee":{"login":"svekars","id":5317992,"node_id":"MDQ6VXNlcjUzMTc5OTI=","avatar_url":"https://avatars3.githubusercontent.com/u/5317992?v=4","gravatar_id":"","url":"https://api.github.com/users/svekars","html_url":"https://github.com/svekars","followers_url":"https://api.github.com/users/svekars/followers","following_url":"https://api.github.com/users/svekars/following{/other_user}","gists_url":"https://api.github.com/users/svekars/gists{/gist_id}","starred_url":"https://api.github.com/users/svekars/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/svekars/subscriptions","organizations_url":"https://api.github.com/users/svekars/orgs","repos_url":"https://api.github.com/users/svekars/repos","events_url":"https://api.github.com/users/svekars/events{/privacy}","received_events_url":"https://api.github.com/users/svekars/received_events","type":"User","site_admin":false},"assignees":[{"login":"svekars","id":5317992,"node_id":"MDQ6VXNlcjUzMTc5OTI=","avatar_url":"https://avatars3.githubusercontent.com/u/5317992?v=4","gravatar_id":"","url":"https://api.github.com/users/svekars","html_url":"https://github.com/svekars","followers_url":"https://api.github.com/users/svekars/followers","following_url":"https://api.github.com/users/svekars/following{/other_user}","gists_url":"https://api.github.com/users/svekars/gists{/gist_id}","starred_url":"https://api.github.com/users/svekars/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/svekars/subscriptions","organizations_url":"https://api.github.com/users/svekars/orgs","repos_url":"https://api.github.com/users/svekars/repos","events_url":"https://api.github.com/users/svekars/events{/privacy}","received_events_url":"https://api.github.com/users/svekars/received_events","type":"User","site_admin":false}],"milestone":null,"comments":3,"created_at":"2019-04-19T17:54:33Z","updated_at":"2019-06-11T22:45:52Z","closed_at":null,"author_association":"NONE","body":"I would describe the documentation about cross and union as somewhat ambiguous. In particular, the examples seem to be showing (and my interpretation might be wrong) the result of a star glob pattern, and not the result of a non-star glob pattern. I think it would be helpful to show both, or explain what's going on there.\r\n\r\nThese two sections in particular:\r\n\r\n* http://docs.pachyderm.io/en/latest/reference/pipeline_spec.html#union-input\r\n* http://docs.pachyderm.io/en/latest/reference/pipeline_spec.html#cross-input\r\n\r\nWhich currently show these examples:\r\n\r\n    Union inputs take the union of other inputs. For example:\r\n\r\n    | inputA | inputB | inputA ∪ inputB |\r\n    | ------ | ------ | --------------- |\r\n    | foo    | fizz   | foo             |\r\n    | bar    | buzz   | fizz            |\r\n    |        |        | bar             |\r\n    |        |        | buzz            |\r\n\r\nand:\r\n\r\n    Cross inputs take the cross product of other inputs, in other words it creates tuples of the datums in the inputs. For example:\r\n\r\n    | inputA | inputB | inputA ⨯ inputB |\r\n    | ------ | ------ | --------------- |\r\n    | foo    | fizz   | (foo, fizz)     |\r\n    | bar    | buzz   | (foo, buzz)     |\r\n    |        |        | (bar, fizz)     |\r\n    |        |        | (bar, buzz)     |\r\n\r\nUsing a star glob pattern produces a very different result regarding which datums are available to the worker during processing. For example, without the star glob, a union will produce a union of the repositories' files available to each process, instead of separately providing datums from the union's two repositories."},"comment":{"url":"https://api.github.com/repos/pachyderm/pachyderm/issues/comments/501051406","html_url":"https://github.com/pachyderm/pachyderm/issues/3665#issuecomment-501051406","issue_url":"https://api.github.com/repos/pachyderm/pachyderm/issues/3665","id":501051406,"node_id":"MDEyOklzc3VlQ29tbWVudDUwMTA1MTQwNg==","user":{"login":"svekars","id":5317992,"node_id":"MDQ6VXNlcjUzMTc5OTI=","avatar_url":"https://avatars3.githubusercontent.com/u/5317992?v=4","gravatar_id":"","url":"https://api.github.com/users/svekars","html_url":"https://github.com/svekars","followers_url":"https://api.github.com/users/svekars/followers","following_url":"https://api.github.com/users/svekars/following{/other_user}","gists_url":"https://api.github.com/users/svekars/gists{/gist_id}","starred_url":"https://api.github.com/users/svekars/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/svekars/subscriptions","organizations_url":"https://api.github.com/users/svekars/orgs","repos_url":"https://api.github.com/users/svekars/repos","events_url":"https://api.github.com/users/svekars/events{/privacy}","received_events_url":"https://api.github.com/users/svekars/received_events","type":"User","site_admin":false},"created_at":"2019-06-11T22:45:52Z","updated_at":"2019-06-11T22:45:52Z","author_association":"CONTRIBUTOR","body":"https://github.com/pachyderm/pachyderm/pull/3821"}}
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