const { Pool } = require('pg');
require('dotenv').config();

const pool = new Pool({
  host: process.env.DB_HOST,
  port: parseInt(process.env.DB_PORT),
  user: process.env.DB_USER,
  password: process.env.DB_PASSWORD,
  database: process.env.DB_NAME,
});

async function listColumns() {
  try {
    const res = await pool.query(`
      SELECT column_name, data_type 
      FROM information_schema.columns 
      WHERE table_schema = 'bw_scheddebrock' AND table_name = 'Nutzung'
    `);
    console.log("Columns in Nutzung table:");
    res.rows.forEach(row => console.log(`- ${row.column_name} (${row.data_type})`));
  } catch (err) {
    console.error("Error:", err);
  } finally {
    await pool.end();
  }
}

listColumns();