pgsql: Support CREATE TABLE (LIKE ...) with foreign tables and views

Support CREATE TABLE (LIKE ...) with foreign tables and views

Composite types are not yet supported, because parserOpenTable()
rejects them.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/a9f2e31cf653bad72debae616521130065e55077

Modified Files
--------------
doc/src/sgml/ref/create_table.sgml              |    5 +++++
src/backend/parser/parse_utilcmd.c              |    6 ++++--
src/test/regress/expected/create_table_like.out |   19 +++++++++++++++++++
src/test/regress/sql/create_table_like.sql      |   20 ++++++++++++++++++++
4 files changed, 48 insertions(+), 2 deletions(-)