バックグラウンダー タスクのカスタム管理ビューを作成する

1. Tableau ユーザーとして Tableau Server PostgreSQL ワークグループ データベースに接続します。
2. 左側のデータ ソース ペインで [新しいカスタム SQL] をダブルクリックします。
3. 下のサンプル クエリをテキスト ボックスに貼り付けます。
4. [OK] をクリックします。
5. こちらから、ビジュアライゼーション用の適切なバックグラウンダー タスク条件を選択できます。

  SELECT
      tasks.id                                            AS "Job Id" ,
      tasks.job_name                                      AS "Job Name" ,
      tasks.progress                                      AS "Progress" ,
      tasks.finish_code                                   AS "Finish Code" ,
      tasks.priority                                      AS "Priority" ,
      tasks.notes                                         AS "Notes" ,
      tasks.created_at                                    AS "Created At" ,
      tasks.started_at                                    AS "Started At" ,
      tasks.completed_at                                  AS "Completed At",
      tasks.backgrounder_id                               AS "Backgrounder Id",
      tasks.created_on_worker                             AS "Created On Worker" ,
      tasks.processed_on_worker                           AS "Processed On Worker" ,
      current_timestamp                                   AS "Current Datetime" ,
      tasks.site_id                                       AS "Site Id" ,
      s.name                                              AS "Site Name" ,
      tasks.subtitle                                      AS "Item Type" ,
      tasks.item_id                                       AS "Item Id" ,
      tasks.item_name                                     AS "Item Name" ,
      tasks.repository_url                                AS "Item Repository Url" ,
      tasks.project_id                                    AS "Item Project Id" ,
      tasks.owner_id                                      AS "Item Owner Id" ,
      su_own.name                                         AS "Item Owner Name" ,
      su_own.friendly_name                                AS "Item Owner Friendly Name" ,
      p.name                                              AS "Project Name"
  FROM
      (
      SELECT
          bj.id ,
          bj.job_name ,
          bj.progress ,
          bj.finish_code ,
          bj.priority ,
          bj.notes ,
          bj.created_at ,
          bj.started_at ,
          bj.completed_at ,
          bj.site_id ,
          bj.subtitle ,
          bj.backgrounder_id ,
          bj.created_on_worker ,
          bj.processed_on_worker ,
          COALESCE(d.repository_url, w.repository_url)        AS "repository_url" ,
          COALESCE(d.project_id, w.project_id)                AS "project_id" ,
          COALESCE(d.owner_id, w.owner_id)                    AS "owner_id" ,
          COALESCE(dc.id, w.id)                               AS "item_id" ,
          COALESCE(d.name, w.name)                            AS "item_name"
      FROM background_jobs bj
          LEFT JOIN datasources d
              ON bj.title = d.name
                  AND bj.subtitle = 'Datasource'
          LEFT JOIN data_connections dc
              ON d.id = dc.owner_id
  		AND dc.owner_type = 'Datasource'
          LEFT JOIN workbooks w
              ON bj.title = w.name
                  AND bj.subtitle = 'Workbook'
      ) AS tasks
      LEFT JOIN sites s
          ON tasks.site_id = s.id
      LEFT JOIN users u_own
          ON tasks.owner_id = u_own.id
      LEFT JOIN system_users su_own
          ON u_own.system_user_id = su_own.id
      LEFT JOIN projects p
          ON tasks.project_id = p.id