feat: MATERIALIZED VIEW COMMENT

ir/parser.go

@@ -3802,6 +3802,40 @@ func (p *Parser) parseComment(stmt *pg_query.CommentStmt) error {
 				view.Comment = comment
 			}
 		}
+
+	case pg_query.ObjectType_OBJECT_MATVIEW:
+		if stmt.Object == nil {
+			return nil
+		}
+
+		// Extract materialized view name from object
+		var schemaName, viewName string
+		if rangeVar, ok := stmt.Object.Node.(*pg_query.Node_List); ok && rangeVar.List != nil {
+			items := rangeVar.List.Items
+			if len(items) == 2 {
+				// Schema and materialized view name
+				if s, ok := items[0].Node.(*pg_query.Node_String_); ok {
+					schemaName = s.String_.Sval
+				}
+				if v, ok := items[1].Node.(*pg_query.Node_String_); ok {
+					viewName = v.String_.Sval
+				}
+			} else if len(items) == 1 {
+				// Just materialized view name, use public schema
+				schemaName = p.defaultSchema
+				if v, ok := items[0].Node.(*pg_query.Node_String_); ok {
+					viewName = v.String_.Sval
+				}
+			}
+		}
+
+		// Set comment on materialized view (stored in Views map with Materialized=true)
+		if schemaName != "" && viewName != "" {
+			dbSchema := p.schema.getOrCreateSchema(schemaName)
+			if view, exists := dbSchema.Views[viewName]; exists && view.Materialized {
+				view.Comment = comment
+			}
+		}
 	}
 
 	return nil

testdata/include/expected_full_schema.sql

@@ -231,3 +231,70 @@ CREATE OR REPLACE VIEW order_details AS
      JOIN users u ON o.user_id = u.id;
 
 COMMENT ON VIEW order_details IS 'Order details with user info';
+
+-- Include materialized views (depend on tables)
+--
+-- Name: user_order_summary; Type: MATERIALIZED VIEW; Schema: -; Owner: -
+--
+
+CREATE MATERIALIZED VIEW IF NOT EXISTS user_order_summary AS
+ SELECT u.id AS user_id,
+    u.name,
+    u.email,
+    count(o.id) AS total_orders,
+    sum(o.amount) AS total_amount,
+    max(o.amount) AS max_order_amount,
+    avg(o.amount) AS avg_order_amount
+   FROM users u
+     LEFT JOIN orders o ON u.id = o.user_id
+  GROUP BY u.id, u.name, u.email;
+
+COMMENT ON MATERIALIZED VIEW user_order_summary IS 'Aggregated user order statistics';
+
+--
+-- Name: idx_user_order_summary_total_amount; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE INDEX IF NOT EXISTS idx_user_order_summary_total_amount ON user_order_summary (total_amount DESC);
+
+--
+-- Name: idx_user_order_summary_user_id; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_user_order_summary_user_id ON user_order_summary (user_id);
+--
+-- Name: monthly_stats; Type: MATERIALIZED VIEW; Schema: -; Owner: -
+--
+
+CREATE MATERIALIZED VIEW IF NOT EXISTS monthly_stats AS
+ SELECT date_trunc('month'::text, now()) AS month,
+    count(user_id) AS unique_customers,
+    count(id) AS total_orders,
+    sum(amount) AS total_revenue,
+    avg(amount) AS avg_order_value,
+    count(
+        CASE
+            WHEN status = 'completed'::text THEN 1
+            ELSE NULL::integer
+        END) AS completed_orders,
+    count(
+        CASE
+            WHEN status = 'pending'::text THEN 1
+            ELSE NULL::integer
+        END) AS pending_orders
+   FROM orders o
+  GROUP BY (date_trunc('month'::text, now()));
+
+COMMENT ON MATERIALIZED VIEW monthly_stats IS 'Monthly order statistics';
+
+--
+-- Name: idx_monthly_stats_month; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_monthly_stats_month ON monthly_stats (month);
+
+--
+-- Name: idx_monthly_stats_revenue; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE INDEX IF NOT EXISTS idx_monthly_stats_revenue ON monthly_stats (total_revenue DESC);

testdata/include/main.sql

@@ -30,3 +30,7 @@
 -- Include views (depend on tables and functions)
 \i views/user_summary.sql
 \i views/order_details.sql
+
+-- Include materialized views (depend on tables)
+\i materialized_views/user_order_summary.sql
+\i materialized_views/monthly_stats.sql

testdata/include/materialized_views/monthly_stats.sql

@@ -0,0 +1,36 @@
+--
+-- Name: monthly_stats; Type: MATERIALIZED VIEW; Schema: -; Owner: -
+--
+
+CREATE MATERIALIZED VIEW IF NOT EXISTS monthly_stats AS
+ SELECT date_trunc('month'::text, now()) AS month,
+    count(user_id) AS unique_customers,
+    count(id) AS total_orders,
+    sum(amount) AS total_revenue,
+    avg(amount) AS avg_order_value,
+    count(
+        CASE
+            WHEN status = 'completed'::text THEN 1
+            ELSE NULL::integer
+        END) AS completed_orders,
+    count(
+        CASE
+            WHEN status = 'pending'::text THEN 1
+            ELSE NULL::integer
+        END) AS pending_orders
+   FROM orders o
+  GROUP BY (date_trunc('month'::text, now()));
+
+COMMENT ON MATERIALIZED VIEW monthly_stats IS 'Monthly order statistics';
+
+--
+-- Name: idx_monthly_stats_month; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_monthly_stats_month ON monthly_stats (month);
+
+--
+-- Name: idx_monthly_stats_revenue; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE INDEX IF NOT EXISTS idx_monthly_stats_revenue ON monthly_stats (total_revenue DESC);

testdata/include/materialized_views/user_order_summary.sql

@@ -0,0 +1,29 @@
+--
+-- Name: user_order_summary; Type: MATERIALIZED VIEW; Schema: -; Owner: -
+--
+
+CREATE MATERIALIZED VIEW IF NOT EXISTS user_order_summary AS
+ SELECT u.id AS user_id,
+    u.name,
+    u.email,
+    count(o.id) AS total_orders,
+    sum(o.amount) AS total_amount,
+    max(o.amount) AS max_order_amount,
+    avg(o.amount) AS avg_order_amount
+   FROM users u
+     LEFT JOIN orders o ON u.id = o.user_id
+  GROUP BY u.id, u.name, u.email;
+
+COMMENT ON MATERIALIZED VIEW user_order_summary IS 'Aggregated user order statistics';
+
+--
+-- Name: idx_user_order_summary_total_amount; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE INDEX IF NOT EXISTS idx_user_order_summary_total_amount ON user_order_summary (total_amount DESC);
+
+--
+-- Name: idx_user_order_summary_user_id; Type: INDEX; Schema: -; Owner: -
+--
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_user_order_summary_user_id ON user_order_summary (user_id);