pgsql: Support arrays of composite types, including the rowtypes of

Log Message:
-----------
Support arrays of composite types, including the rowtypes of regular tables
and views (but not system catalogs, nor sequences or toast tables). Get rid
of the hardwired convention that a type's array type is named exactly "_type",
instead using a new column pg_type.typarray to provide the linkage. (It still
will be named "_type", though, except in odd corner cases such as
maximum-length type names.)

Along the way, make tracking of owner and schema dependencies for types more
uniform: a type directly created by the user has these dependencies, while a
table rowtype or auto-generated array type does not have them, but depends on
its parent object instead.

David Fetter, Andrew Dunstan, Tom Lane

Modified Files:
--------------
pgsql/doc/src/sgml:
array.sgml (r1.60 -> r1.61)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/array.sgml.diff?r1=1.60&r2=1.61)
catalogs.sgml (r2.150 -> r2.151)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/catalogs.sgml.diff?r1=2.150&r2=2.151)
syntax.sgml (r1.117 -> r1.118)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/syntax.sgml.diff?r1=1.117&r2=1.118)
pgsql/doc/src/sgml/ref:
create_type.sgml (r1.69 -> r1.70)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_type.sgml.diff?r1=1.69&r2=1.70)
pgsql/src/backend/catalog:
README (r1.10 -> r1.11)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/README.diff?r1=1.10&r2=1.11)
heap.c (r1.318 -> r1.319)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/heap.c.diff?r1=1.318&r2=1.319)
pg_shdepend.c (r1.17 -> r1.18)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/pg_shdepend.c.diff?r1=1.17&r2=1.18)
pg_type.c (r1.111 -> r1.112)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/pg_type.c.diff?r1=1.111&r2=1.112)
pgsql/src/backend/commands:
tablecmds.c (r1.219 -> r1.220)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/tablecmds.c.diff?r1=1.219&r2=1.220)
typecmds.c (r1.101 -> r1.102)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/typecmds.c.diff?r1=1.101&r2=1.102)
pgsql/src/backend/parser:
parse_type.c (r1.89 -> r1.90)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_type.c.diff?r1=1.89&r2=1.90)
pgsql/src/backend/utils/cache:
lsyscache.c (r1.151 -> r1.152)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/cache/lsyscache.c.diff?r1=1.151&r2=1.152)
pgsql/src/bin/pg_dump:
pg_dump.c (r1.467 -> r1.468)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.c.diff?r1=1.467&r2=1.468)
pg_dump.h (r1.134 -> r1.135)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.h.diff?r1=1.134&r2=1.135)
pgsql/src/include/catalog:
catversion.h (r1.405 -> r1.406)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h.diff?r1=1.405&r2=1.406)
pg_attribute.h (r1.130 -> r1.131)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_attribute.h.diff?r1=1.130&r2=1.131)
pg_class.h (r1.100 -> r1.101)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_class.h.diff?r1=1.100&r2=1.101)
pg_type.h (r1.182 -> r1.183)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_type.h.diff?r1=1.182&r2=1.183)
pgsql/src/include/commands:
typecmds.h (r1.18 -> r1.19)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/commands/typecmds.h.diff?r1=1.18&r2=1.19)
pgsql/src/test/regress/expected:
alter_table.out (r1.101 -> r1.102)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/alter_table.out.diff?r1=1.101&r2=1.102)
oidjoins.out (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/oidjoins.out.diff?r1=1.19&r2=1.20)
type_sanity.out (r1.29 -> r1.30)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/type_sanity.out.diff?r1=1.29&r2=1.30)
pgsql/src/test/regress/sql:
oidjoins.sql (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/oidjoins.sql.diff?r1=1.19&r2=1.20)
type_sanity.sql (r1.29 -> r1.30)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/type_sanity.sql.diff?r1=1.29&r2=1.30)
pgsql/src/tools/findoidjoins:
README (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/findoidjoins/README.diff?r1=1.3&r2=1.4)