pgsql: Require VALUE keyword when extending an enum type. Based on a pa

Require VALUE keyword when extending an enum type. Based on a patch from Alvaro Herrera.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=b7fcf68e8632e757a50352c9567bb630ed285201

Modified Files
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doc/src/sgml/ref/alter_type.sgml   |    8 ++--
src/backend/parser/gram.y          |   16 ++++----
src/test/regress/expected/enum.out |   74 ++++++++++++++++++------------------
src/test/regress/sql/enum.sql      |   74 ++++++++++++++++++------------------
4 files changed, 86 insertions(+), 86 deletions(-)