pgsql: refactor ALTER some-obj SET OWNER implementation

refactor ALTER some-obj SET OWNER implementation

Remove duplicate implementation of catalog munging and miscellaneous
privilege and consistency checks.  Instead rely on already existing data
in objectaddress.c to do the work.

Author: KaiGai Kohei
Tweaked by me
Reviewed by Robert Haas

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/994c36e01d19dece2b0c76fb781e1d08a6e1c814

Modified Files
--------------
src/backend/catalog/pg_largeobject.c  |  102 ------------
src/backend/catalog/pg_shdepend.c     |   64 ++++----
src/backend/commands/aggregatecmds.c  |   15 --
src/backend/commands/alter.c          |  288 +++++++++++++++++++++++++++------
src/backend/commands/collationcmds.c  |  101 ------------
src/backend/commands/conversioncmds.c |  101 ------------
src/backend/commands/extension.c      |   92 -----------
src/backend/commands/functioncmds.c   |  137 ----------------
src/backend/commands/opclasscmds.c    |  248 ----------------------------
src/backend/commands/operatorcmds.c   |   93 -----------
src/backend/commands/proclang.c       |  117 -------------
src/backend/commands/tablespace.c     |   99 -----------
src/backend/commands/tsearchcmds.c    |  120 --------------
src/backend/nodes/copyfuncs.c         |    1 -
src/backend/nodes/equalfuncs.c        |    1 -
src/backend/parser/gram.y             |    4 +-
src/include/catalog/pg_largeobject.h  |    1 -
src/include/commands/alter.h          |    4 +
src/include/commands/collationcmds.h  |    2 -
src/include/commands/conversioncmds.h |    2 -
src/include/commands/defrem.h         |   12 --
src/include/commands/proclang.h       |    2 -
src/include/commands/tablespace.h     |    1 -
src/include/nodes/parsenodes.h        |    1 -
24 files changed, 270 insertions(+), 1338 deletions(-)