pg_lo_open
Name
pg_lo_open -- open a large object
Synopsis
pg_lo_open conn loid mode
Description
   pg_lo_open opens a large object.
  
Arguments
- conn
-       The handle of a connection to the database in which the large object
      exists.
      
- loid
-       The OID of the large object.
      
- mode
-       Specifies the access mode for the large object.  Mode can be
      either r, w, or rw.
      
Return Value
   A descriptor for use in later large-object commands.