Update README.md

README.md

@@ -94,41 +94,71 @@ Here is the SQL query that answers the question: `{natural language question}`
 ### **Example Schemas**
 
 ```sql
- CREATE TABLE
-      table_1_11545282_6 (
-        "No." numeric,
-        Nationality text,
-        "Years for Jazz" text
-      );
-    
-    CREATE TABLE
-      table_2_17383560_1 (
-        Pick numeric,
-        Round numeric,
-        Player text,
-        "School/Club Team" text,
-        Position text
-      );
-    
-    CREATE TABLE
-      table_1_10581768_2 (
-        Institution text,
-        Enrollment numeric,
-        Nickname text,
-        Founded numeric
-      );
+CREATE TABLE users (
+        user_id SERIAL PRIMARY KEY,
+        username VARCHAR(50) NOT NULL,
+        email VARCHAR(100) NOT NULL,
+        password_hash TEXT NOT NULL,
+        created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+    );
+
+CREATE TABLE projects (
+    project_id SERIAL PRIMARY KEY,
+    project_name VARCHAR(100) NOT NULL,
+    description TEXT,
+    start_date DATE,
+    end_date DATE,
+    owner_id INTEGER REFERENCES users(user_id)
+);
+
+CREATE TABLE tasks (
+    task_id SERIAL PRIMARY KEY,
+    task_name VARCHAR(100) NOT NULL,
+    description TEXT,
+    due_date DATE,
+    status VARCHAR(50),
+    project_id INTEGER REFERENCES projects(project_id)
+);
+
+CREATE TABLE taskassignments (
+    assignment_id SERIAL PRIMARY KEY,
+    task_id INTEGER REFERENCES tasks(task_id),
+    user_id INTEGER REFERENCES users(user_id),
+    assigned_date DATE NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE comments (
+    comment_id SERIAL PRIMARY KEY,
+    content TEXT NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    task_id INTEGER REFERENCES tasks(task_id),
+    user_id INTEGER REFERENCES users(user_id)
+);
 ```
 
-**Question**: **What is the round of pick 63?**
+**Question**: **Show me the day with the most users joining**
 ```sql
-SELECT "Round" FROM table_2_17383560_1 WHERE Pick=63;
+SELECT created_at::DATE AS day, COUNT(*) AS user_count
+FROM users
+GROUP BY day
+ORDER BY user_count DESC
+LIMIT 1;
 ```
-**Question**: **What is the most popular position among players?**
+**Question**: **Show me the project that has a task with the most comments**
 ```sql
-SELECT COUNT("Position") FROM "table_2_17383560_1" GROUP BY "Position" ORDER BY COUNT("Position") DESC LIMIT 1;
+SELECT p.project_name, t.task_name, COUNT(c.comment_id) AS comment_count
+FROM projects p
+JOIN tasks t ON p.project_id = t.project_id
+JOIN comments c ON t.task_id = c.task_id
+GROUP BY p.project_name, t.task_name
+ORDER BY comment_count DESC
+LIMIT 1;
 ```
 
-**Question**: **What is the most recent year an institution was founded?**
+**Question**: **What is the ratio of users with gmail addresses vs without?**
 ```sql
-SELECT MAX("Founded") FROM table_1_10581768_2;
+SELECT 
+    SUM(CASE WHEN email ILIKE '%@gmail.com%' THEN 1 ELSE 0 END)::FLOAT / NULLIF(SUM(CASE WHEN email NOT ILIKE '%@gmail.com%' THEN 1 ELSE 0 END), 0) AS gmail_ratio
+FROM 
+    users;
 ```