Useful files
==============
loadfile.c   inserts a unix file into the postgres file system by copying
	     it there.  The unix file is then part of postgres and can
	     be removed.

filetest.c   tests p_read/p_write/p_seek commands.  Any bad 
	     output indicates bugs in p_read p_write or p_seek.
path.c	     when resolve_path in fe-pqufs.c is not static, tests the 
	     correct operation of resolve_path (used in chdir).

Examples
========
dump.c 	     reads a file using a specified buffer length.  Performance
	     under a range of buffer sizes shows overhead of transferring
	     data through PQ.
ren.c	-- simple wrapper for p_rename
unlink.c	-- another wrapper for p_unlink
