Added new ANSI functions LOCALTIME, LOCALTIMESTAMP and CURRENT_USER

Added CEIL as an alias for CEILING
Cleaned up CHECK constraint handling.
(We don't anymore require braces after CHECK)
Added casting to CHAR.


mysql-test/r/bigint.result:
  Moved casting test to cast.test
mysql-test/r/func_time.result:
  Test of new functions
mysql-test/t/bigint.test:
  Moved casting test to cast.test
mysql-test/t/func_time.test:
  Test of new functions
sql/item_create.cc:
  Added casting to CHAR
sql/item_func.h:
  Added casting to CHAR
sql/item_timefunc.h:
  Added casting to CHAR
sql/lex.h:
  Added new ANSI functions LOCALTIME, LOCALTIMESTAMP and CURRENT_USER
  Added CEIL as an alias for CEILING
sql/sql_yacc.yy:
  Cleaned up CHECK constraint handling.

5 files changed, 32 insertions, 7 deletions

diff --git a/sql/item_create.cc b/sql/item_create.cc
index f28e3248c61..c5f53f0d040 100644
--- a/sql/item_create.cc
+++ b/sql/item_create.cc
@@ -425,6 +425,7 @@ Item *create_func_cast(Item *a, Item_cast cast_type)
   LINT_INIT(res);
   switch (cast_type) {
   case ITEM_CAST_BINARY: 	res= new Item_func_binary(a); break;
+  case ITEM_CAST_CHAR:	 	res= new Item_char_typecast(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;
diff --git a/sql/item_func.h b/sql/item_func.h
index 2e02d7cfd28..b7e0cee540a 100644
--- a/sql/item_func.h
+++ b/sql/item_func.h
@@ -1003,7 +1003,7 @@ public:
 enum Item_cast
 {
   ITEM_CAST_BINARY, ITEM_CAST_SIGNED_INT, ITEM_CAST_UNSIGNED_INT,
-  ITEM_CAST_DATE, ITEM_CAST_TIME, ITEM_CAST_DATETIME
+  ITEM_CAST_DATE, ITEM_CAST_TIME, ITEM_CAST_DATETIME, ITEM_CAST_CHAR
 };
 
 Item *create_func_cast(Item *a, Item_cast cast_type);
diff --git a/sql/item_timefunc.h b/sql/item_timefunc.h
index 0fe487b7983..c0255e71d27 100644
--- a/sql/item_timefunc.h
+++ b/sql/item_timefunc.h
@@ -410,6 +410,7 @@ public:
   unsigned int size_of() { return sizeof(*this);}  
 };
 
+
 class Item_extract :public Item_int_func
 {
   const interval_type int_type;
@@ -424,10 +425,12 @@ class Item_extract :public Item_int_func
   unsigned int size_of() { return sizeof(*this);}  
 };
 
+
 class Item_typecast :public Item_str_func
 {
 public:
   Item_typecast(Item *a) :Item_str_func(a) {}
+  const char *func_name() const { return "char"; }
   String *val_str(String *a)
   { a=args[0]->val_str(a); null_value=args[0]->null_value; return a; }
   void fix_length_and_dec() { max_length=args[0]->max_length; }
@@ -435,6 +438,14 @@ public:
 };
 
 
+class Item_char_typecast :public Item_typecast
+{
+public:
+  Item_char_typecast(Item *a) :Item_typecast(a) {}
+  void fix_length_and_dec() { binary=0; max_length=args[0]->max_length; }
+};
+
+
 class Item_date_typecast :public Item_typecast
 {
 public:
@@ -450,6 +461,7 @@ public:
   }  
 };
 
+
 class Item_time_typecast :public Item_typecast
 {
 public:
@@ -465,6 +477,7 @@ public:
   }
 };
 
+
 class Item_datetime_typecast :public Item_typecast
 {
 public:
diff --git a/sql/lex.h b/sql/lex.h
index 49b6a3811e5..717e8a355ca 100644
--- a/sql/lex.h
+++ b/sql/lex.h
@@ -210,6 +210,8 @@ static SYMBOL symbols[] = {
   { "LIMIT",		SYM(LIMIT),0,0},
   { "LOAD",		SYM(LOAD),0,0},
   { "LOCAL",		SYM(LOCAL_SYM),0,0},
+  { "LOCALTIME",	SYM(NOW_SYM),0,0},
+  { "LOCALTIMESTAMP",	SYM(NOW_SYM),0,0},
   { "LOCK",		SYM(LOCK_SYM),0,0},
   { "LOCKS",		SYM(LOCKS_SYM),0,0},
   { "LOGS",		SYM(LOGS_SYM),0,0},
@@ -394,7 +396,9 @@ static SYMBOL sql_functions[] = {
   { "BIT_OR",		SYM(BIT_OR),0,0},
   { "BIT_AND",		SYM(BIT_AND),0,0},
   { "CAST",		SYM(CAST_SYM),0,0},
+  { "CEIL",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ceiling)},
   { "CEILING",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ceiling)},
+  { "CURRENT_USER",	SYM(USER),0,0},
   { "BIT_LENGTH",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_bit_length)},
   { "CHAR_LENGTH",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_char_length)},
   { "CHARACTER_LENGTH", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_char_length)},
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index f6a0c483bb9..c3c6d8ad66b 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -899,7 +899,7 @@ field_list:
 
 
 field_list_item:
-	  field_spec
+	  field_spec check_constraint
 	| field_spec references
 	  {
 	    Lex->col_list.empty();		/* Alloced by sql_alloc */
@@ -914,10 +914,16 @@ field_list_item:
 	  {
 	    Lex->col_list.empty();		/* Alloced by sql_alloc */
 	  }
-	| opt_constraint CHECK_SYM '(' expr ')'
+	| opt_constraint check_constraint
 	  {
 	    Lex->col_list.empty();		/* Alloced by sql_alloc */
-	  };
+	  }
+	;
+
+check_constraint:
+	/* empty */
+	| CHECK_SYM expr
+	;
 
 opt_constraint:
 	/* empty */
@@ -1986,13 +1992,15 @@ in_sum_expr:
 
 cast_type:
 	BINARY 			{ $$=ITEM_CAST_BINARY; }
+	| CHAR_SYM		{ $$=ITEM_CAST_CHAR; }
 	| SIGNED_SYM		{ $$=ITEM_CAST_SIGNED_INT; }
 	| SIGNED_SYM INT_SYM	{ $$=ITEM_CAST_SIGNED_INT; }
 	| UNSIGNED		{ $$=ITEM_CAST_UNSIGNED_INT; }
 	| UNSIGNED INT_SYM	{ $$=ITEM_CAST_UNSIGNED_INT; }
 	| DATE_SYM		{ $$=ITEM_CAST_DATE; }
 	| TIME_SYM		{ $$=ITEM_CAST_TIME; }
-	| DATETIME		{ $$=ITEM_CAST_DATETIME; };
+	| DATETIME		{ $$=ITEM_CAST_DATETIME; }
+	;
 
 expr_list:
 	{ Select->expr_list.push_front(new List<Item>); }
@@ -2437,7 +2445,7 @@ table_name:
 	{ if (!add_table_to_list($1,NULL,1)) YYABORT; };
 
 if_exists:
-	/* empty */ { $$=0; }
+	/* empty */ { $$= 0; }
 	| IF EXISTS { $$= 1; }
 	;
 
@@ -3154,7 +3162,6 @@ keyword:
 	| CACHE_SYM		{}
 	| CHANGED		{}
 	| CHECKSUM_SYM		{}
-	| CHECK_SYM		{}
 	| CIPHER_SYM		{}
 	| CLIENT_SYM		{}
 	| CLOSE_SYM		{}