New CAST syntax

Cleanup of multi-table-delete in sql_yacc.yy
Changed syntax of MAXIMUM QUERIES PER HOUR to MAX_QUERIES_PER_HOUR to
not get too many reserved words.


Docs/manual.texi:
  Updated information about CAST
mysql-test/r/bigint.result:
  New CAST syntax
mysql-test/r/create.result:
  New CAST syntax
mysql-test/r/variables.result:
  Fix after merge with 3.23
mysql-test/t/bigint.test:
  New CAST syntax
mysql-test/t/create.test:
  New CAST syntax
sql/item_create.cc:
  New CAST syntax
sql/item_func.h:
  New CAST syntax
sql/item_timefunc.cc:
  New CAST syntax
sql/item_timefunc.h:
  New CAST syntax
sql/lex.h:
  Changed syntax to MAX_QUERIES_PER_HOUR to not get too many reserved words.
sql/mysql_priv.h:
  Cleanup multi-delete
sql/sql_parse.cc:
  Cleanup multi-delete
sql/sql_yacc.yy:
  Cleanup multi-delete.
  New CAST syntax.
  Removed some restricted words.

1 files changed, 15 insertions, 0 deletions

diff --git a/sql/item_create.cc b/sql/item_create.cc
index a9567414b0b..4b60ad1bf56 100644
--- a/sql/item_create.cc
+++ b/sql/item_create.cc
@@ -393,3 +393,18 @@ Item *create_wait_for_master_pos(Item* a, Item* b)
   current_thd->safe_to_cache_query=0;
   return new Item_master_pos_wait(a, b);
 }
+
+Item *create_func_cast(Item *a, Item_cast cast_type)
+{
+  Item *res;
+  LINT_INIT(res);
+  switch (cast_type) {
+  case ITEM_CAST_BINARY: 	res= new Item_func_binary(a); break;
+  case ITEM_CAST_SIGNED_INT:	res= new Item_func_signed(a); break;
+  case ITEM_CAST_UNSIGNED_INT:  res= new Item_func_unsigned(a); break;
+  case ITEM_CAST_DATE:		res= new Item_date_typecast(a); break;
+  case ITEM_CAST_TIME:		res= new Item_time_typecast(a); break;
+  case ITEM_CAST_DATETIME:	res= new Item_datetime_typecast(a); break;
+  }
+  return res;
+}