rather than just being aliases for int4in/int4out.  Give type Oid a
full set of comparison operators that do proper unsigned comparison,
instead of reusing the int4 comparators.  Since pg_dump is now doing
unsigned comparisons of OIDs, it is now *necessary* that we play by
the rules here.  In fact, given that btoidcmp() has been doing unsigned
comparison for quite some time, it seems likely that we have index-
corruption problems in 7.0 and before once the Oid counter goes past
2G.  Fixing these operators is a necessary step before we can think
about 8-byte Oid, too.

(should fix OID bootstraping).

new separate relkind for views (per some discussion back in September).
I didn't force initdb, but rules regress test will show differences
until you do one.

per bug report from Don Baccus.

Thanks to Martin A. Marques <martin@math.unl.edu.ar> for the tip.

in pghackers list.  Support for oldstyle internal functions is gone
(no longer needed, since conversion is complete) and pg_language entry
'internal' now implies newstyle call convention.  pg_language entry
'newC' is gone; both old and newstyle dynamically loaded C functions
are now called language 'C'.  A newstyle function must be identified
by an associated info routine.  See src/backend/utils/fmgr/README.

'long long int' portions of ecpg if the type or these functions don't
exist.

of user-defined functions (forget 'C' vs 'newC', instead require an info
function to be present for new-style functions).  Also update some other
out-of-date commentary.

option conventions.  (E.g., "pg_passwd -?" should not write to a file named
"-?".)

'b' prefixes.

a > comparison against INT_MIN may do the wrong thing.  Per suggestion
from Andreas.

where char is signed by default.

with an -fsigned-char/-funsigned-char setting opposite to that of libc,
thus breaking the convention that 'undefined' values returned by
localeconv() are represented by CHAR_MAX.  It is sheer stupidity that
gcc even has such a switch --- it's just as bad as the structure-packing
control switches offered by the more brain-dead PC compilers --- and
as for the behavior of Linux distribution vendors who set RPM_OPT_FLAGS
differently from the way they built libc, well, words fail me...

Also, add some comments about what it's for...

function calls to work.

by Chih-Chang Hsi. See "A Patch for MIC to EUC_TW code converting in
mb support" posting in pgsql-patches list dated 09 Nov 2000.

race condition --- old backend may not have shut down by the time we
try to do the DROP.

'make test' target.

wise the next bit string in the same command clobbers the previous ones.

maintained for each cache entry.  A cache entry will not be freed until
the matching ReleaseSysCache call has been executed.  This eliminates
worries about cache entries getting dropped while still in use.  See
my posting to pg-hackers of even date for more info.