Merge bk-internal:/home/bk/mysql-4.1/

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

mysql-test/r/func_time.result

@@ -468,6 +468,23 @@ select date_add(time,INTERVAL 1 SECOND) from t1;
 date_add(time,INTERVAL 1 SECOND)
 2006-07-08 00:00:01
 drop table t1;
+select last_day('2000-02-05') as f1, last_day('2002-12-31') as f2,
+last_day('2003-03-32') as f3, last_day('2003-04-01') as f4,
+last_day('2001-01-01 01:01:01') as f5, last_day(NULL),
+last_day('2001-02-12');
+f1	f2	f3	f4	f5	last_day(NULL)	last_day('2001-02-12')
+2000-02-29	2002-12-31	NULL	2003-04-30	2001-01-31	NULL	2001-02-28
+create table t1 select last_day('2000-02-05') as a;
+describe t1;
+Field	Type	Null	Key	Default	Extra
+a	date			0000-00-00	
+select * from t1;
+a
+2000-02-29
+drop table t1;
+select last_day('2000-02-05');
+last_day('2000-02-05')
+2000-02-29
 select strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0;
 strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0
 1

mysql-test/r/subselect.result

@@ -1569,3 +1569,32 @@ INSERT INTO t2 VALUES (100, 200, 'C');
 SELECT DISTINCT COLC FROM t1 WHERE COLA = (SELECT COLA FROM t2 WHERE COLB = 200 AND COLC ='C' LIMIT 1);
 COLC
 DROP TABLE t1, t2;
+create table t11 (a int NOT NULL, b int, primary key (a));
+create table t12 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t11 values (0, 10),(1, 11),(2, 12);
+insert into t12 values (33, 10),(22, 11),(2, 12);
+insert into t2 values (1, 21),(2, 12),(3, 23);
+select * from t11;
+a	b
+0	10
+1	11
+2	12
+select * from t12;
+a	b
+33	10
+22	11
+2	12
+select * from t2;
+a	b
+1	21
+2	12
+3	23
+delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b > (select b from t2);
+ERROR 21000: Subquery returns more than 1 row
+select * from t2;
+a	b
+1	21
+2	12
+3	23
+drop table t11, t12, t2;

mysql-test/t/func_time.test

@@ -224,6 +224,19 @@ select date_add(date,INTERVAL "1 1:1:1" DAY_SECOND) from t1;
 select date_add(time,INTERVAL 1 SECOND) from t1;
 drop table t1;
 
+# test for last_day
+select last_day('2000-02-05') as f1, last_day('2002-12-31') as f2,
+       last_day('2003-03-32') as f3, last_day('2003-04-01') as f4,
+       last_day('2001-01-01 01:01:01') as f5, last_day(NULL),
+       last_day('2001-02-12');
+
+create table t1 select last_day('2000-02-05') as a;
+describe t1;
+select * from t1;
+drop table t1;
+select last_day('2000-02-05');
+
+
 # Test SAPDB UTC_% functions. This part is TZ dependant (It is supposed that
 # TZ variable set to GMT-3
 select strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0;

mysql-test/t/subselect.test

@@ -1008,4 +1008,22 @@ CREATE TABLE t2(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC CHAR(1) NOT NULL,PR
 INSERT INTO t1 VALUES (1,1,'1A3240'), (1,2,'4W2365');
 INSERT INTO t2 VALUES (100, 200, 'C');
 SELECT DISTINCT COLC FROM t1 WHERE COLA = (SELECT COLA FROM t2 WHERE COLB = 200 AND COLC ='C' LIMIT 1);
-DROP TABLE t1, t2;s
+DROP TABLE t1, t2;
+
+#
+# errors handling
+#
+
+create table t11 (a int NOT NULL, b int, primary key (a));
+create table t12 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t11 values (0, 10),(1, 11),(2, 12);
+insert into t12 values (33, 10),(22, 11),(2, 12);
+insert into t2 values (1, 21),(2, 12),(3, 23);
+select * from t11;
+select * from t12;
+select * from t2;
+-- error 1241
+delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b > (select b from t2);
+select * from t2;
+drop table t11, t12, t2;

sql/item_create.cc

@@ -707,3 +707,8 @@ Item *create_func_str_to_date(Item* a,Item* b)
 {
   return new Item_func_str_to_date(a, b);
 }
+
+Item *create_func_last_day(Item *a)
+{
+  return new Item_func_last_day(a);
+}

sql/item_create.h

@@ -150,3 +150,4 @@ Item *create_func_subtime(Item* a,Item* b);
 Item *create_func_timediff(Item* a,Item* b);
 Item *create_func_maketime(Item* a,Item* b,Item* c);
 Item *create_func_str_to_date(Item* a,Item* b);
+Item *create_func_last_day(Item *a);

sql/item_timefunc.cc

@@ -2310,3 +2310,19 @@ String *Item_func_str_to_date::val_str(String *str)
     return str;
   return 0;
 }
+
+
+String *Item_func_last_day::val_str(String *str)
+{
+  TIME ltime;
+  if (!get_arg0_date(&ltime,0))
+  {
+    uint month_idx= ltime.month-1;
+    ltime.day= days_in_month[month_idx];
+    if ( month_idx == 1 && calc_days_in_year(ltime.year) == 366)
+      ltime.day+= 1;
+    if (!make_datetime(DATE_ONLY, &ltime, str))
+      return str;      
+  }
+  return 0;
+}

sql/item_timefunc.h

@@ -809,3 +809,21 @@ class Item_func_str_to_date :public Item_date_func
     max_length=MAX_DATETIME_FULL_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
   }
 };
+
+class Item_func_last_day :public Item_str_func
+{
+public:
+  Item_func_last_day(Item *a) :Item_str_func(a) {}
+  String *val_str(String *str);
+  const char *func_name() const { return "last_day"; }
+  enum_field_types field_type() const { return MYSQL_TYPE_DATE; }
+  void fix_length_and_dec()
+  { 
+    decimals=0;
+    max_length=MAX_DATE_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
+  }
+  Field *tmp_table_field(TABLE *t_arg)
+  {
+    return (new Field_date(maybe_null, name, t_arg, &my_charset_bin));
+  }
+};

sql/lex.h

@@ -551,7 +551,8 @@ static SYMBOL sql_functions[] = {
   { "IS_FREE_LOCK",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_is_free_lock)},
   { "IS_USED_LOCK",	SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_is_used_lock)},
   { "LAST_INSERT_ID",	SYM(LAST_INSERT_ID),0,0},
-  { "ISSIMPLE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_issimple)},
+  { "ISSIMPLE",         SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_issimple)},
+  { "LAST_DAY",         SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_last_day)},
   { "LCASE",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_lcase)},
   { "LEAST",		SYM(LEAST_SYM),0,0},
   { "LENGTH",		SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_length)},

sql/sql_select.cc

@@ -5590,6 +5590,7 @@ sub_select(JOIN *join,JOIN_TAB *join_tab,bool end_of_records)
   int error;
   bool found=0;
   COND *on_expr=join_tab->on_expr, *select_cond=join_tab->select_cond;
+  my_bool *report_error= &(join->thd->net.report_error);
 
   if (!(error=(*join_tab->read_first_record)(join_tab)))
   {
@@ -5628,9 +5629,9 @@ sub_select(JOIN *join,JOIN_TAB *join_tab,bool end_of_records)
 	else
 	  info->file->unlock_row();
       }
-    } while (!(error=info->read_record(info)));
+    } while (!(error=info->read_record(info)) && !(*report_error));
   }
-  if (error > 0)				// Fatal error
+  if (error > 0 || (*report_error))				// Fatal error
     return -1;
 
   if (!found && on_expr)