amall fix

mysql-test/r/derived.result

@@ -227,6 +227,4 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	THEMAX.E2	1	Using where
 2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
 3	DEPENDENT SUBQUERY	B	ALL	NULL	NULL	NULL	NULL	2	Using where
-Warnings:
-Note	1275	Field or reference 'A.E2' of SELECT #3 was resolved in SELECT #2
 drop table t1;

mysql-test/r/func_in.result

@@ -146,7 +146,7 @@ explain extended select * from t1 where 'a' in (a,b,c collate latin1_bin);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
 Warnings:
-Note	1003	select high_priority test.t1.a AS `a`,test.t1.b AS `b`,test.t1.c AS `c` from test.t1 where (_latin1'a' IN (test.t1.a,test.t1.b,(test.t1.c collate _latin1'latin1_bin')))
+Note	1003	select high_priority test.t1.a AS `a`,test.t1.b AS `b`,test.t1.c AS `c` from test.t1 where (_latin1'a' in (test.t1.a,test.t1.b,(test.t1.c collate _latin1'latin1_bin')))
 drop table t1;
 select '1.0' in (1,2);
 '1.0' in (1,2)

mysql-test/r/func_math.result

 select floor(5.5),floor(-5.5);
 floor(5.5)	floor(-5.5)
 5	-6
+explain extended select floor(5.5),floor(-5.5);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority floor(5.5) AS `floor(5.5)`,floor(-(5.5)) AS `floor(-5.5)`
 select ceiling(5.5),ceiling(-5.5);
 ceiling(5.5)	ceiling(-5.5)
 6	-5
+explain extended select ceiling(5.5),ceiling(-5.5);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority ceiling(5.5) AS `ceiling(5.5)`,ceiling(-(5.5)) AS `ceiling(-5.5)`
 select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
 truncate(52.64,1)	truncate(52.64,2)	truncate(52.64,-1)	truncate(52.64,-2)	truncate(-52.64,1)	truncate(-52.64,-1)
 52.6	52.64	50	0	-52.6	-50
+explain extended select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority truncate(52.64,1) AS `truncate(52.64,1)`,truncate(52.64,2) AS `truncate(52.64,2)`,truncate(52.64,-(1)) AS `truncate(52.64,-1)`,truncate(52.64,-(2)) AS `truncate(52.64,-2)`,truncate(-(52.64),1) AS `truncate(-52.64,1)`,truncate(-(52.64),-(1)) AS `truncate(-52.64,-1)`
 select round(5.5),round(-5.5);
 round(5.5)	round(-5.5)
 6	-6
+explain extended select round(5.5),round(-5.5);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority round(5.5,0) AS `round(5.5)`,round(-(5.5),0) AS `round(-5.5)`
 select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
 round(5.64,1)	round(5.64,2)	round(5.64,-1)	round(5.64,-2)
 5.6	5.64	10	0
@@ -24,25 +44,65 @@ Note	1003	select high_priority abs(-(10)) AS `abs(-10)`,sign(-(5)) AS `sign(-5)`
 select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
 log(exp(10))	exp(log(sqrt(10))*2)	log(-1)	log(NULL)	log(1,1)	log(3,9)	log(-1,2)	log(NULL,2)
 10.000000	10.000000	NULL	NULL	NULL	2.000000	NULL	NULL
+explain extended select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority log(exp(10)) AS `log(exp(10))`,exp((log(sqrt(10)) * 2)) AS `exp(log(sqrt(10))*2)`,log(-(1)) AS `log(-1)`,log(NULL) AS `log(NULL)`,log(1,1) AS `log(1,1)`,log(3,9) AS `log(3,9)`,log(-(1),2) AS `log(-1,2)`,log(NULL,2) AS `log(NULL,2)`
 select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
 ln(exp(10))	exp(ln(sqrt(10))*2)	ln(-1)	ln(0)	ln(NULL)
 10.000000	10.000000	NULL	NULL	NULL
+explain extended select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority ln(exp(10)) AS `ln(exp(10))`,exp((ln(sqrt(10)) * 2)) AS `exp(ln(sqrt(10))*2)`,ln(-(1)) AS `ln(-1)`,ln(0) AS `ln(0)`,ln(NULL) AS `ln(NULL)`
 select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
 log2(8)	log2(15)	log2(-2)	log2(0)	log2(NULL)
 3.000000	3.906891	NULL	NULL	NULL
+explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority log2(8) AS `log2(8)`,log2(15) AS `log2(15)`,log2(-(2)) AS `log2(-2)`,log2(0) AS `log2(0)`,log2(NULL) AS `log2(NULL)`
 select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
 log10(100)	log10(18)	log10(-4)	log10(0)	log10(NULL)
 2.000000	1.255273	NULL	NULL	NULL
+explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority log10(100) AS `log10(100)`,log10(18) AS `log10(18)`,log10(-(4)) AS `log10(-4)`,log10(0) AS `log10(0)`,log10(NULL) AS `log10(NULL)`
 select pow(10,log10(10)),power(2,4);
 pow(10,log10(10))	power(2,4)
 10.000000	16.000000
+explain extended select pow(10,log10(10)),power(2,4);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4)`
 set @@rand_seed1=10000000,@@rand_seed2=1000000;
 select rand(999999),rand();
 rand(999999)	rand()
 0.014231365187309	0.028870999839968
+explain extended select rand(999999),rand();
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority no_cache rand(999999) AS `rand(999999)`,rand() AS `rand()`
 select pi(),sin(pi()/2),cos(pi()/2),abs(tan(pi())),cot(1),asin(1),acos(0),atan(1);
 pi()	sin(pi()/2)	cos(pi()/2)	abs(tan(pi()))	cot(1)	asin(1)	acos(0)	atan(1)
 3.141593	1.000000	0.000000	0.000000	0.64209262	1.570796	1.570796	0.785398
+explain extended select pi(),sin(pi()/2),cos(pi()/2),abs(tan(pi())),cot(1),asin(1),acos(0),atan(1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority pi() AS `pi()`,sin((pi() / 2)) AS `sin(pi()/2)`,cos((pi() / 2)) AS `cos(pi()/2)`,abs(tan(pi())) AS `abs(tan(pi()))`,(1 / tan(1)) AS `cot(1)`,asin(1) AS `asin(1)`,acos(0) AS `acos(0)`,atan(1) AS `atan(1)`
 select degrees(pi()),radians(360);
 degrees(pi())	radians(360)
 180	6.2831853071796
+explain extended select degrees(pi()),radians(360);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select high_priority degrees(pi()) AS `degrees(pi())`,radians(360) AS `radians(360)`

sql/item.cc

@@ -1650,10 +1650,10 @@ void Item_default_value::print(String *str)
 {
   if (!arg)
   {
-    str->append("default", 6);
+    str->append("default", 7);
     return;
   }
-  str->append("default", 7);
+  str->append("default(", 8);
   arg->print(str);
   str->append(')');
 }

sql/item_create.cc

@@ -292,7 +292,7 @@ Item *create_func_period_diff(Item* a, Item *b)
 
 Item *create_func_pi(void)
 {
-  return new Item_real("Pi()",M_PI,6,8);
+  return new Item_real("pi()",M_PI,6,8);
 }
 
 Item *create_func_pow(Item* a, Item *b)