Added START TRANSACTION syntax

Added ALL as parameter option for all group functions.
Make join handling uniform. This allows us to use ',', JOIN and INNER JOIN the same way.
Sort NULL last if DESC is used (ANSI SQL 99 requirement)

include/my_global.h

@@ -764,6 +764,14 @@ typedef char		bool;	/* Ordinary boolean values 0 1 */
 #define INT32(v)	(int32) (v)
 #define MYF(v)		(myf) (v)
 
+#ifndef LL
+#ifdef HAVE_LONG_LONG
+#define LL(A) A ## LL
+#else
+#define LL(A) A ## L
+#endif
+#endif
+
 /*
   Defines to make it possible to prioritize register assignments. No
   longer that important with modern compilers.

mysql-test/r/distinct.result

@@ -77,7 +77,6 @@ NULL	NULL
 10	VMT
 select id+0 as a,max(id),concat(facility) as b from t1 group by a order by b desc,a;
 a	max(id)	b
-NULL	NULL	NULL
 10	10	VMT
 9	9	SRV
 8	8	RV
@@ -90,6 +89,7 @@ NULL	NULL	NULL
 1	1	/L
 -1	-1	
 0	0	
+NULL	NULL	NULL
 select id >= 0 and id <= 5 as grp,count(*) from t1 group by grp;
 grp	count(*)
 NULL	1

mysql-test/r/func_group.result

@@ -42,8 +42,8 @@ insert into t1 values (null,null,'');
 select count(distinct a),count(distinct grp) from t1;
 count(distinct a)	count(distinct grp)
 6	3
-select sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1;
-sum(a)	count(a)	avg(a)	std(a)	bit_or(a)	bit_and(a)	min(a)	max(a)	min(c)	max(c)
+select sum(all a),count(all a),avg(all a),std(all a),bit_or(all a),bit_and(all a),min(all a),max(all a),min(all c),max(all c) from t1;
+sum(all a)	count(all a)	avg(all a)	std(all a)	bit_or(all a)	bit_and(all a)	min(all a)	max(all a)	min(all c)	max(all c)
 21	6	3.5000	1.7078	7	0	1	6		E
 select grp, sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1 group by grp;
 grp	sum(a)	count(a)	avg(a)	std(a)	bit_or(a)	bit_and(a)	min(a)	max(a)	min(c)	max(c)

mysql-test/r/innodb.result

@@ -290,7 +290,7 @@ select * from t1;
 id	val
 drop table t1;
 create table t1 (a integer) type=innodb;
-begin;
+start transaction;
 rename table t1 to t2;
 create table t1 (b integer) type=innodb;
 insert into t1 values (1);

mysql-test/r/join.result

 drop table if exists t1,t2,t3;
+CREATE TABLE t1 (S1 INT);
+CREATE TABLE t2 (S1 INT);
+INSERT INTO t1 VALUES (1);
+INSERT INTO t2 VALUES (2);
+SELECT * FROM t1 JOIN t2;
+S1	S1
+1	2
+SELECT * FROM t1 INNER JOIN t2;
+S1	S1
+1	2
+SELECT * from t1 JOIN t2 USING (S1);
+S1	S1
+SELECT * FROM t1 INNER JOIN t2 USING (S1);
+S1	S1
+SELECT * from t1 CROSS JOIN t2;
+S1	S1
+1	2
+SELECT * from t1 LEFT JOIN t2 USING(S1);
+S1	S1
+1	NULL
+SELECT * from t1 LEFT JOIN t2 ON(t2.S1=2);
+S1	S1
+1	2
+SELECT * from t1 RIGHT JOIN t2 USING(S1);
+S1	S1
+NULL	2
+SELECT * from t1 RIGHT JOIN t2 ON(t1.S1=1);
+S1	S1
+1	2
+drop table t1,t2;
 create table t1 (id int primary key);
 create table t2 (id int);
 insert into t1 values (75);

mysql-test/r/order_by.result

@@ -304,7 +304,7 @@ a	b	c
 1	NULL	b
 explain select * from t1 where a >= 1 and a < 3 and b >0 order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	range	a	a	9	NULL	8	Using where; Using index; Using filesort
+t1	range	a	a	9	NULL	8	Using where; Using index
 explain select * from t1 where a = 2 and b >0 order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	range	a	a	9	NULL	5	Using where; Using index
@@ -320,7 +320,18 @@ table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	range	a	a	9	NULL	5	Using where; Using index
 explain select * from t1 where a = 2 and b < 2 order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	range	a	a	9	NULL	2	Using where; Using index; Using filesort
+t1	range	a	a	9	NULL	2	Using where; Using index
+explain select * from t1 where a = 1 order by b desc;
+table	type	possible_keys	key	key_len	ref	rows	Extra
+t1	ref	a	a	4	const	5	Using where; Using index
+select * from t1 where a = 1 order by b desc;
+a	b	c
+1	3	b
+1	1	b
+1	1	b
+1	1	NULL
+1	NULL	b
+1	NULL	NULL
 alter table t1 modify b int not null, modify c varchar(10) not null;
 explain select * from t1 order by a, b, c;
 table	type	possible_keys	key	key_len	ref	rows	Extra

mysql-test/t/func_group.test

@@ -21,7 +21,7 @@ select count(distinct a),count(distinct grp) from t1;
 insert into t1 values (null,null,'');
 select count(distinct a),count(distinct grp) from t1;
 
-select sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1;
+select sum(all a),count(all a),avg(all a),std(all a),bit_or(all a),bit_and(all a),min(all a),max(all a),min(all c),max(all c) from t1;
 select grp, sum(a),count(a),avg(a),std(a),bit_or(a),bit_and(a),min(a),max(a),min(c),max(c) from t1 group by grp;
 select grp, sum(a)+count(a)+avg(a)+std(a)+bit_or(a)+bit_and(a)+min(a)+max(a)+min(c)+max(c) as sum from t1 group by grp;
 

mysql-test/t/innodb.test

@@ -167,7 +167,7 @@ drop table t1;
 #
 
 create table t1 (a integer) type=innodb;
-begin;
+start transaction;
 rename table t1 to t2;
 create table t1 (b integer) type=innodb;
 insert into t1 values (1);

mysql-test/t/join.test

+#
+# Initialization
+drop table if exists t1,t2,t3;
+
+#
+# Test different join syntaxes
+#
+
+CREATE TABLE t1 (S1 INT);
+CREATE TABLE t2 (S1 INT);
+INSERT INTO t1 VALUES (1);
+INSERT INTO t2 VALUES (2);
+SELECT * FROM t1 JOIN t2;
+SELECT * FROM t1 INNER JOIN t2;
+SELECT * from t1 JOIN t2 USING (S1);
+SELECT * FROM t1 INNER JOIN t2 USING (S1);
+SELECT * from t1 CROSS JOIN t2;
+SELECT * from t1 LEFT JOIN t2 USING(S1);
+SELECT * from t1 LEFT JOIN t2 ON(t2.S1=2);
+SELECT * from t1 RIGHT JOIN t2 USING(S1);
+SELECT * from t1 RIGHT JOIN t2 ON(t1.S1=1);
+drop table t1,t2;
+
 #
 # This failed for lia Perminov
 #
-drop table if exists t1,t2,t3;
+
 
 create table t1 (id int primary key);
 create table t2 (id int);

mysql-test/t/order_by.test

@@ -227,7 +227,8 @@ explain select * from t1 where a = 2 and (b is null or b > 0) order by a
 desc,b desc;
 explain select * from t1 where a = 2 and b > 0 order by a desc,b desc;
 explain select * from t1 where a = 2 and b < 2 order by a desc,b desc;
-
+explain select * from t1 where a = 1 order by b desc;
+select * from t1 where a = 1 order by b desc;
 #
 # Test things when we don't have NULL keys
 #

sql/filesort.cc

@@ -461,7 +461,10 @@ static void make_sortkey(register SORTPARAM *param,
       {
 	if (field->is_null())
 	{
-	  bzero((char*) to,sort_field->length+1);
+	  if (sort_field->reverse)
+	    bfill(to,sort_field->length+1,(char) 255);
+	  else
+	    bzero((char*) to,sort_field->length+1);
 	  to+= sort_field->length+1;
 	  continue;
 	}

sql/lex.h

@@ -260,6 +260,7 @@ static SYMBOL symbols[] = {
   { "NULL",		SYM(NULL_SYM),0,0},
   { "NUMERIC",		SYM(NUMERIC_SYM),0,0},
   { "OFFSET",		SYM(OFFSET_SYM),0,0},
+  { "OLD_PASSWORD",	SYM(PASSWORD),0,0},
   { "ON",		SYM(ON),0,0},
   { "OPEN",		SYM(OPEN_SYM),0,0},
   { "OPTIMIZE",		SYM(OPTIMIZE),0,0},

sql/mysql_priv.h

@@ -53,14 +53,6 @@ char* query_table_status(THD *thd,const char *db,const char *table_name);
 #define PREV_BITS(type,A)	((type) (((type) 1 << (A)) -1))
 #define all_bits_set(A,B) ((A) & (B) != (B))
 
-#ifndef LL
-#ifdef HAVE_LONG_LONG
-#define LL(A) A ## LL
-#else
-#define LL(A) A ## L
-#endif
-#endif
-
 /***************************************************************************
   Configuration parameters
 ****************************************************************************/

sql/opt_range.cc

@@ -2555,8 +2555,7 @@ QUICK_SELECT_DESC::QUICK_SELECT_DESC(QUICK_SELECT *q, uint used_key_parts)
   for (r = it++; r; r = it++)
   {
     rev_ranges.push_front(r);
-    if (not_read_after_key && range_reads_after_key(r) ||
-	test_if_null_range(r,used_key_parts))
+    if (not_read_after_key && range_reads_after_key(r))
     {
       it.rewind();				// Reset range
       error = HA_ERR_UNSUPPORTED;
@@ -2717,6 +2716,7 @@ bool QUICK_SELECT_DESC::range_reads_after_key(QUICK_RANGE *range_arg)
 
 /* True if we are reading over a key that may have a NULL value */
 
+#ifdef NOT_USED
 bool QUICK_SELECT_DESC::test_if_null_range(QUICK_RANGE *range_arg,
 					   uint used_key_parts)
 {
@@ -2762,6 +2762,7 @@ bool QUICK_SELECT_DESC::test_if_null_range(QUICK_RANGE *range_arg,
       return 1;					// Covers null part
   return 0;
 }
+#endif
 
 
 /*****************************************************************************

sql/opt_range.h

@@ -100,7 +100,9 @@ class QUICK_SELECT_DESC: public QUICK_SELECT
 private:
   int cmp_prev(QUICK_RANGE *range);
   bool range_reads_after_key(QUICK_RANGE *range);
+#ifdef NOT_USED
   bool test_if_null_range(QUICK_RANGE *range, uint used_key_parts);
+#endif
   void reset(void) { next=0; rev_it.rewind(); }
   List<QUICK_RANGE> rev_ranges;
   List_iterator<QUICK_RANGE> rev_it;

sql/slave.cc

@@ -1671,7 +1671,8 @@ int st_relay_log_info::wait_for_pos(THD* thd, String* log_name,
   */
   ulong log_name_extension;
   char log_name_tmp[FN_REFLEN]; //make a char[] from String
-  char *end= strmake(log_name_tmp, log_name->ptr(), min(log_name->length(), FN_REFLEN-1));
+  char *end= strmake(log_name_tmp, log_name->ptr(), min(log_name->length(),
+							FN_REFLEN-1));
   char *p= fn_ext(log_name_tmp);
   char *p_end;
   if (!*p || log_pos<0)   
@@ -1756,15 +1757,14 @@ int st_relay_log_info::wait_for_pos(THD* thd, String* log_name,
       error= -1;
       break;
     }
-    else
-      error=0;
+    error=0;
     event_count++;
   }
 
 err:
   pthread_mutex_unlock(&data_lock);
   DBUG_PRINT("exit",("killed: %d  abort: %d  slave_running: %d \
-improper_arguments: %d timed_out: %d",
+improper_arguments: %d  timed_out: %d",
                      (int) thd->killed,
                      (int) (init_abort_pos_wait != abort_pos_wait),
                      (int) mi->slave_running,

sql/sql_parse.cc

@@ -2252,8 +2252,6 @@ mysql_execute_command(void)
       net_printf(&thd->net,ER_WRONG_DB_NAME, lex->name);
       break;
     }
-    if (lower_case_table_names)
-      casedn_str(lex->name);
     /*
       If in a slave thread :
       CREATE DATABASE DB was certainly not preceded by USE DB.

sql/sql_select.cc

@@ -4555,6 +4555,11 @@ sub_select(JOIN *join,JOIN_TAB *join_tab,bool end_of_records)
 	{
 	  if ((error=(*join_tab->next_select)(join,join_tab+1,0)) < 0)
 	    return error;
+	  /*
+	    Test if this was a SELECT DISTINCT query on a table that
+	    was not in the field list;  In this case we can abort if
+	    we found a row, as no new rows can be added to the result.
+	  */
 	  if (not_used_in_distinct && found_records != join->found_records)
 	    return 0;
 	}

sql/sql_yacc.yy

@@ -579,7 +579,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 	insert_values update delete truncate rename
 	show describe load alter optimize flush
 	reset purge begin commit rollback slave master_def master_defs
-	repair restore backup analyze check 
+	repair restore backup analyze check start
 	field_list field_list_item field_spec kill
 	select_item_list select_item values_list no_braces
 	limit_clause delete_limit_clause fields opt_values values
@@ -657,6 +657,7 @@ verb_clause:
 	| select
 	| set
 	| slave
+	| start
 	| show
 	| truncate
 	| handler
@@ -1328,6 +1329,11 @@ slave:
 	   lex->type = 0;
          };
 
+start:
+	START_SYM TRANSACTION_SYM { Lex->sql_command = SQLCOM_BEGIN;}
+	{}
+	;
+
 slave_thread_opts:
 	slave_thread_opt
 	| slave_thread_opts ',' slave_thread_opt;
@@ -1999,7 +2005,7 @@ sum_expr:
 	  { $$=new Item_sum_and($3); }
 	| BIT_OR  '(' in_sum_expr ')'
 	  { $$=new Item_sum_or($3); }
-	| COUNT_SYM '(' '*' ')'
+	| COUNT_SYM '(' opt_all '*' ')'
 	  { $$=new Item_sum_count(new Item_int((int32) 0L,1)); }
 	| COUNT_SYM '(' in_sum_expr ')'
 	  { $$=new Item_sum_count($3); }
@@ -2017,11 +2023,12 @@ sum_expr:
 	  { $$=new Item_sum_sum($3); };
 
 in_sum_expr:
+	opt_all
 	{ Select->in_sum_expr++; }
 	expr
 	{
 	  Select->in_sum_expr--;
-	  $$=$2;
+	  $$=$3;
 	};
 
 cast_type:
@@ -2092,19 +2099,22 @@ opt_pad:
 join_table_list:
 	'(' join_table_list ')'	{ $$=$2; }
 	| join_table		{ $$=$1; }
+	| join_table_list ',' join_table_list { $$=$3; }
 	| join_table_list normal_join join_table_list { $$=$3; }
 	| join_table_list STRAIGHT_JOIN join_table_list
 	  { $$=$3 ; $$->straight=1; }
-	| join_table_list INNER_SYM JOIN_SYM join_table_list ON expr
-	  { add_join_on($4,$6); $$=$4; }
-	| join_table_list INNER_SYM JOIN_SYM join_table_list
+	| join_table_list normal_join join_table_list ON expr
+	  { add_join_on($3,$5); $$=$3; }
+	| join_table_list normal_join join_table_list
+	  USING 
 	  {
 	    SELECT_LEX *sel=Select;
 	    sel->db1=$1->db; sel->table1=$1->alias;
-	    sel->db2=$4->db; sel->table2=$4->alias;
+	    sel->db2=$3->db; sel->table2=$3->alias;
 	  }
-	  USING '(' using_list ')'
-	  { add_join_on($4,$8); $$=$4; }
+	  '(' using_list ')'
+	  { add_join_on($3,$7); $$=$3; }
+
 	| join_table_list LEFT opt_outer JOIN_SYM join_table_list ON expr
 	  { add_join_on($5,$7); $5->outer_join|=JOIN_TYPE_LEFT; $$=$5; }
 	| join_table_list LEFT opt_outer JOIN_SYM join_table_list
@@ -2133,9 +2143,10 @@ join_table_list:
 	  { add_join_natural($1,$4); $$=$4; };
 
 normal_join:
-	',' {}
-	| JOIN_SYM {}
-	| CROSS JOIN_SYM {};
+	JOIN_SYM		{}
+	| INNER_SYM JOIN_SYM	{}
+	| CROSS JOIN_SYM	{}
+	;
 
 join_table:
 	{
@@ -2232,6 +2243,10 @@ opt_table_alias:
 	| table_alias ident
 	  { $$= (LEX_STRING*) sql_memdup(&$2,sizeof(LEX_STRING)); };
 
+opt_all:
+	/* empty */
+	| ALL
+	;
 
 where_clause:
 	/* empty */  { Select->where= 0; }