pgsql: DDL support for collations

DDL support for collations

- collowner field
- CREATE COLLATION
- ALTER COLLATION
- DROP COLLATION
- COMMENT ON COLLATION
- integration with extensions
- pg_dump support for the above
- dependency management
- psql tab completion
- psql \dO command

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/b313bca0afce3ab9dab0a77c64c0982835854b9a

Modified Files
--------------
doc/src/sgml/catalogs.sgml | 21 +-
doc/src/sgml/charset.sgml | 11 +-
doc/src/sgml/ref/allfiles.sgml | 3 +
doc/src/sgml/ref/alter_collation.sgml | 128 +++++++
doc/src/sgml/ref/alter_extension.sgml | 1 +
doc/src/sgml/ref/comment.sgml | 2 +
doc/src/sgml/ref/create_collation.sgml | 175 ++++++++++
doc/src/sgml/ref/drop_collation.sgml | 110 ++++++
doc/src/sgml/ref/psql-ref.sgml | 19 +
doc/src/sgml/reference.sgml | 3 +
src/backend/catalog/Makefile | 2 +-
src/backend/catalog/aclchk.c | 31 ++
src/backend/catalog/dependency.c | 46 +++
src/backend/catalog/heap.c | 9 +
src/backend/catalog/index.c | 14 +
src/backend/catalog/objectaddress.c | 9 +
src/backend/catalog/pg_collation.c | 163 +++++++++
src/backend/catalog/pg_shdepend.c | 6 +
src/backend/catalog/pg_type.c | 13 +
src/backend/commands/Makefile | 2 +-
src/backend/commands/alter.c | 17 +
src/backend/commands/collationcmds.c | 401 ++++++++++++++++++++++
src/backend/commands/comment.c | 5 +
src/backend/commands/dbcommands.c | 116 ++++---
src/backend/commands/tablecmds.c | 26 +-
src/backend/commands/typecmds.c | 1 +
src/backend/parser/gram.y | 57 +++-
src/backend/tcop/utility.c | 18 +
src/bin/initdb/initdb.c | 3 +-
src/bin/pg_dump/common.c | 6 +
src/bin/pg_dump/pg_backup_archiver.c | 4 +-
src/bin/pg_dump/pg_dump.c | 187 ++++++++++
src/bin/pg_dump/pg_dump.h | 10 +-
src/bin/pg_dump/pg_dump_sort.c | 17 +-
src/bin/psql/command.c | 3 +
src/bin/psql/describe.c | 62 ++++-
src/bin/psql/describe.h | 3 +
src/bin/psql/help.c | 1 +
src/bin/psql/tab-complete.c | 18 +-
src/include/catalog/catversion.h | 2 +-
src/include/catalog/dependency.h | 1 +
src/include/catalog/pg_collation.h | 12 +-
src/include/catalog/pg_collation_fn.h | 23 ++
src/include/catalog/pg_type_fn.h | 1 +
src/include/commands/collationcmds.h | 28 ++
src/include/commands/dbcommands.h | 2 +
src/include/nodes/parsenodes.h | 1 +
src/include/parser/kwlist.h | 1 +
src/include/utils/acl.h | 2 +
src/test/regress/expected/collate.linux.utf8.out | 93 +++++
src/test/regress/sql/collate.linux.utf8.sql | 62 ++++
51 files changed, 1860 insertions(+), 91 deletions(-)