pgsql: Add CREATE RECURSIVE VIEW syntax

Add CREATE RECURSIVE VIEW syntax

This is specified in the SQL standard.  The CREATE RECURSIVE VIEW
specification is transformed into a normal CREATE VIEW statement with a
WITH RECURSIVE clause.

reviewed by Abhijit Menon-Sen and Stephen Frost

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/583905269378bf41c24585773885b1e226a998ce

Modified Files
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doc/src/sgml/ref/create_view.sgml  |   29 ++++++++++++-
src/backend/parser/gram.y          |   85 ++++++++++++++++++++++++++++++++++++
src/test/regress/expected/with.out |   30 +++++++++++++
src/test/regress/sql/with.sql      |   15 ++++++
4 files changed, 158 insertions(+), 1 deletions(-)