### Prepared statements - [x] [PREPARE](https://www.postgresql.org/docs/current/sql-prepare.html) - [x] `PREPARE name AS statement` - [x] `PREPARE name (data_type, ...) AS statement` - [x] [EXECUTE](https://www.postgresql.org/docs/current/sql-execute.html) - [x] `EXECUTE name` - [x] `EXECUTE name (parameter, ...)` - [x] [DEALLOCATE](https://www.postgresql.org/docs/current/sql-deallocate.html) `[ PREPARE ] { name | ALL }`