Add multi-bucket support for tables and update reports

reports.yml

@@ -75,47 +75,78 @@
   label: Top Paths
   icon: map
   chart: table
-  bucket: path
-  bucket_label: Path
+  buckets:
+    - domain
+    - path
+  bucket_label:
+    - Domain
+    - Path
   query: |
-    SELECT path AS path,
-           COUNT(*) AS value
-    FROM (
-        SELECT substr(substr(request, instr(request, ' ') + 1), 1,
+    WITH paths AS (
+        SELECT host AS domain,
+               substr(substr(request, instr(request, ' ') + 1), 1,
                       instr(substr(request, instr(request, ' ') + 1), ' ') - 1) AS path
         FROM logs
+    ), ranked AS (
+        SELECT domain, path, COUNT(*) AS value,
+               ROW_NUMBER() OVER (PARTITION BY domain ORDER BY COUNT(*) DESC) AS rn
+        FROM paths
+        GROUP BY domain, path
     )
-    GROUP BY path
-    ORDER BY value DESC
-    LIMIT 20
+    SELECT domain, path, value
+    FROM ranked
+    WHERE rn <= 20
+    ORDER BY domain, value DESC
 
 - name: user_agents
   label: User Agents
   icon: user
   chart: table
-  bucket: user_agent
-  bucket_label: User Agent
+  buckets:
+    - domain
+    - user_agent
+  bucket_label:
+    - Domain
+    - User Agent
   query: |
-    SELECT user_agent AS user_agent,
-           COUNT(*) AS value
-    FROM logs
-    GROUP BY user_agent
-    ORDER BY value DESC
-    LIMIT 20
+    WITH ua AS (
+        SELECT host AS domain, user_agent
+        FROM logs
+    ), ranked AS (
+        SELECT domain, user_agent, COUNT(*) AS value,
+               ROW_NUMBER() OVER (PARTITION BY domain ORDER BY COUNT(*) DESC) AS rn
+        FROM ua
+        GROUP BY domain, user_agent
+    )
+    SELECT domain, user_agent, value
+    FROM ranked
+    WHERE rn <= 20
+    ORDER BY domain, value DESC
 
 - name: referrers
   label: Referrers
   icon: link
   chart: table
-  bucket: referrer
-  bucket_label: Referrer
+  buckets:
+    - domain
+    - referrer
+  bucket_label:
+    - Domain
+    - Referrer
   query: |
-    SELECT referer AS referrer,
-           COUNT(*) AS value
-    FROM logs
-    GROUP BY referrer
-    ORDER BY value DESC
-    LIMIT 20
+    WITH ref AS (
+        SELECT host AS domain, referer AS referrer
+        FROM logs
+    ), ranked AS (
+        SELECT domain, referrer, COUNT(*) AS value,
+               ROW_NUMBER() OVER (PARTITION BY domain ORDER BY COUNT(*) DESC) AS rn
+        FROM ref
+        GROUP BY domain, referrer
+    )
+    SELECT domain, referrer, value
+    FROM ranked
+    WHERE rn <= 20
+    ORDER BY domain, value DESC
 
 - name: status_distribution
   label: HTTP Statuses