Requested by Bryan

explicitly.

Changes:

        * Unique index capability works using the syntax 'create unique
          index'.

        * Duplicate OID's in the system tables are removed.  I put
          little scripts called 'duplicate_oids' and 'find_oid' in
          include/catalog that help to find and remove duplicate OID's.
          I also moved 'unused_oids' from backend/catalog to
          include/catalog, since it has to be in the same directory
          as the include files in order to work.

        * The backend tries converting the name of a function or aggregate
          to all lowercase if the original name given doesn't work (mostly
          for compatibility with ODBC).

        * You can 'SELECT NULL' to your heart's content.

        * I put my _bt_updateitem fix in instead, which uses
          _bt_insertonpg so that even if the new key is so big that
          the page has to be split, everything still works.

        * All literal references to system catalog OID's have been
          replaced with references to define'd constants from the catalog
          header files.

        * I added a couple of node copy functions.  I think this was a
          preliminary attempt to get rules to work.

miscadmin.h.

to be sleazy and reach into other subsystems' directories.  First entry in
this directory is the PG_VERSION file interface, which must be used by the
backend and also the pg_version program (which is used by initdb).

|After sending my previous changes I found one more thing in Makefile.global.
|Any tests should be done after including Makefile.custom or else there
|won't be anything, particularly the port name, to base the tests on.
|
-----

more changes to makefile.global from D'Arcy

    following is the patch to libpq's large object interface that
    removes the requirement to  include  fmgr.h  into  fe-lobj.c.
    The  large object interface now ask's the backend to tell the
    OID's of all the required functions in pg_proc.

From: wieck@sapserv.debis.de (Jan Wieck)

called, it dumps core...

ABORT_ON_ASSERT must be defined, as I don't know if this is the correct
way to do this...