Connected successfully to PostgreSQL.
Columns in 'video_ads':
 - sort_order (integer)
 - created_at (timestamp with time zone)
 - updated_at (timestamp with time zone)
 - id (bigint)
 - bux_reward (integer)
 - is_active (boolean)
 - title (character varying)
 - video_url (text)
 - thumbnail_url (text)