const { Pool } = require('pg');

const pool = new Pool({
  connectionString: 'postgres://postgres:csh%402018@localhost:5432/ai_pharmacy'
});

async function run() {
  try {
    await pool.query('ALTER TABLE dispensing_records ADD COLUMN IF NOT EXISTS prescription_id VARCHAR(50)');
    console.log('Successfully added prescription_id column.');
  } catch (err) {
    console.error('Error:', err);
  } finally {
    pool.end();
  }
}
run();