Example

externcrate postgres;externcrate postgres_large_object;use std::fs::File;use std::io;use postgres::{Connection,TlsMode};use postgres_large_object::{LargeObjectExt,LargeObjectTransactionExt,Mode};fnmain(){let conn =Connection::connect("postgres://postgres@localhost",TlsMode::None).unwrap();letmut file =File::open("vacation_photos.tar.gz").unwrap();let trans = conn.transaction().unwrap();let oid = trans.create_large_object().unwrap();{letmut large_object = trans.open_large_object(oid,Mode::Write).unwrap();        io::copy(&mut file,&mut large_object).unwrap();}    trans.commit().unwrap();letmut file =File::create("vacation_photos_copy.tar.gz").unwrap();let trans = conn.transaction().unwrap();letmut large_object = trans.open_large_object(oid,Mode::Read).unwrap();    io::copy(&mut large_object,&mut file).unwrap();}

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