Alter table example

alter-schema.diff

- import { pgTable, serial, varchar } from 'drizzle-orm/pg-core';
+ import { pgTable, serial, varchar, date } from 'drizzle-orm/pg-core';

export const users = pgTable('users', {
  user_id: serial('user_id').primaryKey(),
  first_name: varchar('first_name', { length: 100 }),
  last_name: varchar('last_name', { length: 100 }),
  email: varchar('email', { length: 80 }).unique(),
  role: varchar('role', { length: 20 }),
+  date_of_birth: date('date_of_birth')
})