Create device specific version of account_insights

src/meta_api_grabber/db_schema.sql

@@ -448,5 +448,65 @@ FROM (
 
 
 
+DROP VIEW IF EXISTS g_account_insights_device CASCADE;
+CREATE VIEW g_account_insights_device AS
+SELECT 
+    time,
+    account_id,
+    device,
+    clicks,
+    impressions,
+    interactions,
+    cost_micros,
+    cost_micros / 1000000.0 as cost,
+    leads,
+    engagements,
+    customer_currency_code,
+    account_name,
+    
+    -- CTR (Click-Through Rate)
+    (clicks::numeric / impressions_nz) * 100 as ctr,
+    
+    -- CPM (Cost Per Mille) in micros and standard units
+    (cost_micros::numeric / impressions_nz) * 1000 as cpm_micros,
+    (cost_micros::numeric / impressions_nz) * 1000 / 1000000.0 as cpm,
+    
+    -- CPC (Cost Per Click) in micros and standard units
+    cost_micros::numeric / clicks_nz as cpc_micros,
+    cost_micros::numeric / clicks_nz / 1000000.0 as cpc,
+    
+    -- CPL (Cost Per Lead) in micros and standard units
+    cost_micros::numeric / leads_nz as cpl_micros,
+    cost_micros::numeric / leads_nz / 1000000.0 as cpl,
+    
+    -- Conversion Rate
+    (leads::numeric / clicks_nz) * 100 as conversion_rate,
+    
+    -- Engagement Rate
+    (engagements::numeric / impressions_nz) * 100 as engagement_rate
+    
+FROM (
+    SELECT 
+        segments_date as time, 
+        customer_id as account_id, 
+        segments_device as device,
+        sum(metrics_clicks) as clicks, 
+        sum(metrics_impressions) as impressions, 
+        sum(metrics_interactions) as interactions, 
+        sum(metrics_cost_micros) as cost_micros,
+        sum(metrics_conversions) as leads, 
+        sum(metrics_engagements) as engagements,
+        customer_currency_code,
+        customer_descriptive_name as account_name,
+        -- Null-safe denominators
+        NULLIF(sum(metrics_clicks), 0) as clicks_nz,
+        NULLIF(sum(metrics_impressions), 0) as impressions_nz,
+        NULLIF(sum(metrics_conversions), 0) as leads_nz
+    FROM google.account_performance_report
+    GROUP BY account_id, time, customer_currency_code, account_name, segments_device
+) base;
+
+
+