pg_lo_open() opens a large object in the database and returns large object resource so that it can be manipulated.
Warning |
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.
Note: This function used to be called pg_loopen().
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().
The OID of the large object in the database.
Can be either "r" for read-only, "w" for write only or "rw" for read and write.