connect
psql -h HOST -U USER -d DB
change the password
\password
show database
\l
SELECT datname FROM pg_database;
connect database
\connect thumbnail
list schemas
\dn
list tables in the schema
\dt thumbnail_service.
list all tables
SELECT table_schema,table_name FROM information_schema.tables;
desc table
\d thumbnail_service.thumbnail
vertical result
\x
quit
\q