pg_lo_read_all() reads a large object and passes it straight through to the browser after sending all pending headers. Mainly intended for sending binary data like images or sound. It returns number of bytes read. It returns FALSE, if an error occurred.
To use the large object (lo) interface, it is necessary to enclose it within a transaction block.
Megjegyzés: This function used to be called pg_loreadall().
See also pg_lo_read().