once for all derived functions.
I also reverted my patch for MONTH() and added a test case.
My MONTH() patch was too specific. This is a general fix.

Plus a fix for security flaw in database hash


Docs/manual.texi:
  Fixed bugs with create table from ITEM_FUNC and make it over
  once for all derived functions.
  I also reverted my patch for MONTH() and added a test case.
  My MONTH() patch was too specific. This is a general fix.
mysql-test/r/create.result:
  Fixed bugs with create table from ITEM_FUNC and make it over
  once for all derived functions.
  I also reverted my patch for MONTH() and added a test case.
  My MONTH() patch was too specific. This is a general fix.
mysql-test/t/create.test:
  Fixed bugs with create table from ITEM_FUNC and make it over
  once for all derived functions.
  I also reverted my patch for MONTH() and added a test case.
  My MONTH() patch was too specific. This is a general fix.
sql/item_func.h:
  Fixed bugs with create table from ITEM_FUNC and make it over
  once for all derived functions.
  I also reverted my patch for MONTH() and added a test case.
  My MONTH() patch was too specific. This is a general fix.
sql/item_timefunc.h:
  Fixed bugs with create table from ITEM_FUNC and make it over
  once for all derived functions.
  I also reverted my patch for MONTH() and added a test case.
  My MONTH() patch was too specific. This is a general fix.
sql/sql_acl.cc:
  Fixed a security flaw in database hash