pgsql: Convert index-related tuple handling routines from char 'n'/' '

Log Message:
-----------
Convert index-related tuple handling routines from char 'n'/' ' to bool
convention for isnull flags. Also, remove the useless InsertIndexResult
return struct from index AM aminsert calls --- there is no reason for
the caller to know where in the index the tuple was inserted, and we
were wasting a palloc cycle per insert to deliver this uninteresting
value (plus nontrivial complexity in some AMs).
I forced initdb because of the change in the signature of the aminsert
routines, even though nothing really looks at those pg_proc entries...

Modified Files:
--------------
pgsql/doc/src/sgml:
indexam.sgml (r2.1 -> r2.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/indexam.sgml.diff?r1=2.1&r2=2.2)
pgsql/src/backend/access/common:
heaptuple.c (r1.98 -> r1.99)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/common/heaptuple.c.diff?r1=1.98&r2=1.99)
indextuple.c (r1.72 -> r1.73)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/common/indextuple.c.diff?r1=1.72&r2=1.73)
pgsql/src/backend/access/gist:
gist.c (r1.112 -> r1.113)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gist/gist.c.diff?r1=1.112&r2=1.113)
pgsql/src/backend/access/hash:
hash.c (r1.76 -> r1.77)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/hash/hash.c.diff?r1=1.76&r2=1.77)
hashinsert.c (r1.35 -> r1.36)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/hash/hashinsert.c.diff?r1=1.35&r2=1.36)
pgsql/src/backend/access/heap:
tuptoaster.c (r1.48 -> r1.49)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/heap/tuptoaster.c.diff?r1=1.48&r2=1.49)
pgsql/src/backend/access/index:
indexam.c (r1.77 -> r1.78)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/index/indexam.c.diff?r1=1.77&r2=1.78)
pgsql/src/backend/access/nbtree:
nbtinsert.c (r1.119 -> r1.120)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/nbtree/nbtinsert.c.diff?r1=1.119&r2=1.120)
nbtree.c (r1.125 -> r1.126)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/nbtree/nbtree.c.diff?r1=1.125&r2=1.126)
pgsql/src/backend/access/rtree:
rtree.c (r1.87 -> r1.88)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/rtree/rtree.c.diff?r1=1.87&r2=1.88)
pgsql/src/backend/catalog:
index.c (r1.248 -> r1.249)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/index.c.diff?r1=1.248&r2=1.249)
indexing.c (r1.108 -> r1.109)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/indexing.c.diff?r1=1.108&r2=1.109)
pgsql/src/backend/commands:
analyze.c (r1.83 -> r1.84)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/analyze.c.diff?r1=1.83&r2=1.84)
pgsql/src/backend/executor:
execUtils.c (r1.118 -> r1.119)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execUtils.c.diff?r1=1.118&r2=1.119)
pgsql/src/include/access:
genam.h (r1.47 -> r1.48)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/genam.h.diff?r1=1.47&r2=1.48)
hash.h (r1.59 -> r1.60)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/hash.h.diff?r1=1.59&r2=1.60)
heapam.h (r1.97 -> r1.98)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/heapam.h.diff?r1=1.97&r2=1.98)
itup.h (r1.41 -> r1.42)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/itup.h.diff?r1=1.41&r2=1.42)
nbtree.h (r1.83 -> r1.84)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/nbtree.h.diff?r1=1.83&r2=1.84)
tuptoaster.h (r1.21 -> r1.22)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/tuptoaster.h.diff?r1=1.21&r2=1.22)
pgsql/src/include/catalog:
catversion.h (r1.258 -> r1.259)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h.diff?r1=1.258&r2=1.259)
index.h (r1.60 -> r1.61)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/index.h.diff?r1=1.60&r2=1.61)
pg_proc.h (r1.352 -> r1.353)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_proc.h.diff?r1=1.352&r2=1.353)