// Channels — broadcast conversations (type='channel') where only the owner and
// admins post. `type` is a plain text column, so the new value needs no DDL;
// channels just add an optional description shown on the info page.

/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
exports.up = (pgm) => {
  pgm.addColumns('conversations', {
    description: { type: 'text' },
  });
};

/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
exports.down = (pgm) => {
  pgm.dropColumns('conversations', ['description']);
};