pg_lo_open Open a large object &reftitle.description; resourcepg_lo_open resourceconnection intoid stringmode pg_lo_open opens a large object in the database and returns large object resource so that it can be manipulated. Do not close the database connection before closing the large object resource. To use the large object interface, it is necessary to enclose it within a transaction block. This function used to be called pg_loopen. &reftitle.parameters; connection PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect or pg_pconnect. oid The OID of the large object in the database. mode Can be either "r" for read-only, "w" for write only or "rw" for read and write. &reftitle.returnvalues; A large object resource or &false; on error. &reftitle.examples; ]]> &reftitle.seealso; pg_lo_close pg_lo_create