Merge rurik.mysql.com:/home/igor/mysql-5.1

into  rurik.mysql.com:/home/igor/dev/mysql-5.1-0

mysql-test/r/having.result

@@ -359,3 +359,38 @@ group by s1 collate latin1_swedish_ci having s1 = 'y';
 s1	count(s1)
 y	1
 drop table t1;
+DROP SCHEMA IF EXISTS HU;
+Warnings:
+Note	1008	Can't drop database 'HU'; database doesn't exist
+CREATE SCHEMA HU ;
+USE HU ;
+CREATE TABLE STAFF
+(EMPNUM   CHAR(3) NOT NULL UNIQUE,
+EMPNAME  CHAR(20),
+GRADE    DECIMAL(4),
+CITY     CHAR(15));
+CREATE TABLE PROJ
+(PNUM     CHAR(3) NOT NULL UNIQUE,
+PNAME    CHAR(20),
+PTYPE    CHAR(6),
+BUDGET   DECIMAL(9),
+CITY     CHAR(15));
+INSERT INTO STAFF VALUES ('E1','Alice',12,'Deale');
+INSERT INTO STAFF VALUES ('E2','Betty',10,'Vienna');
+INSERT INTO STAFF VALUES ('E3','Carmen',13,'Vienna');
+INSERT INTO STAFF VALUES ('E4','Don',12,'Deale');
+INSERT INTO STAFF VALUES ('E5','Ed',13,'Akron');
+INSERT INTO PROJ VALUES  ('P1','MXSS','Design',10000,'Deale');
+INSERT INTO PROJ VALUES  ('P2','CALM','Code',30000,'Vienna');
+INSERT INTO PROJ VALUES  ('P3','SDP','Test',30000,'Tampa');
+INSERT INTO PROJ VALUES  ('P4','SDP','Design',20000,'Deale');
+INSERT INTO PROJ VALUES  ('P5','IRM','Test',10000,'Vienna');
+INSERT INTO PROJ VALUES  ('P6','PAYR','Design',50000,'Deale');
+SELECT EMPNUM, GRADE*1000
+FROM HU.STAFF WHERE GRADE * 1000 > 
+ANY (SELECT SUM(BUDGET) FROM HU.PROJ
+GROUP BY CITY, PTYPE
+HAVING HU.PROJ.CITY = HU.STAFF.CITY);
+EMPNUM	GRADE*1000
+E3	13000
+DROP SCHEMA HU;

mysql-test/t/having.test

@@ -347,3 +347,47 @@ group by s1 collate latin1_swedish_ci having s1 = 'y';
 # MySQL returns: 1 row, with count(s1) = 1
 
 drop table t1;
+
+
+#
+# Bug #15917: unexpected complain for a name in having clause
+# when the server is run on Windows or with --lower-case-table-names=1
+#
+
+DROP SCHEMA IF EXISTS HU;
+CREATE SCHEMA HU ;
+USE HU ;
+
+CREATE TABLE STAFF
+ (EMPNUM   CHAR(3) NOT NULL UNIQUE,
+  EMPNAME  CHAR(20),
+  GRADE    DECIMAL(4),
+  CITY     CHAR(15));
+
+CREATE TABLE PROJ
+ (PNUM     CHAR(3) NOT NULL UNIQUE,
+  PNAME    CHAR(20),
+  PTYPE    CHAR(6),
+  BUDGET   DECIMAL(9),
+  CITY     CHAR(15));
+
+INSERT INTO STAFF VALUES ('E1','Alice',12,'Deale');
+INSERT INTO STAFF VALUES ('E2','Betty',10,'Vienna');
+INSERT INTO STAFF VALUES ('E3','Carmen',13,'Vienna');
+INSERT INTO STAFF VALUES ('E4','Don',12,'Deale');
+INSERT INTO STAFF VALUES ('E5','Ed',13,'Akron');
+
+INSERT INTO PROJ VALUES  ('P1','MXSS','Design',10000,'Deale');
+INSERT INTO PROJ VALUES  ('P2','CALM','Code',30000,'Vienna');
+INSERT INTO PROJ VALUES  ('P3','SDP','Test',30000,'Tampa');
+INSERT INTO PROJ VALUES  ('P4','SDP','Design',20000,'Deale');
+INSERT INTO PROJ VALUES  ('P5','IRM','Test',10000,'Vienna');
+INSERT INTO PROJ VALUES  ('P6','PAYR','Design',50000,'Deale');
+
+SELECT EMPNUM, GRADE*1000
+  FROM HU.STAFF WHERE GRADE * 1000 > 
+                  ANY (SELECT SUM(BUDGET) FROM HU.PROJ
+                         GROUP BY CITY, PTYPE
+                           HAVING HU.PROJ.CITY = HU.STAFF.CITY);
+
+DROP SCHEMA HU;

sql/item.cc

@@ -3061,6 +3061,7 @@ static Item** find_field_in_group_list(Item *find_item, ORDER *group_list)
   int         found_match_degree= 0;
   Item_ident *cur_field;
   int         cur_match_degree= 0;
+  char        name_buff[NAME_LEN+1];
 
   if (find_item->type() == Item::FIELD_ITEM ||
       find_item->type() == Item::REF_ITEM)
@@ -3072,6 +3073,14 @@ static Item** find_field_in_group_list(Item *find_item, ORDER *group_list)
   else
     return NULL;
 
+  if (db_name && lower_case_table_names)
+  {
+    /* Convert database to lower case for comparison */
+    strmake(name_buff, db_name, sizeof(name_buff)-1);
+    my_casedn_str(files_charset_info, name_buff);
+    db_name= name_buff;
+  }
+
   DBUG_ASSERT(field_name != 0);
 
   for (ORDER *cur_group= group_list ; cur_group ; cur_group= cur_group->next)