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Fixed bug #15917: unexpected complain for a NIST test case.

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The problem was due to the fact that with --lower-case-table-names set to 1 
the function find_field_in_group did not convert the prefix 'HU' in
HU.PROJ.CITY into lower case when looking for it in the group list. Yet the
names in the group list were extended by the database name in lower case.


mysql-test/r/having.result:
  Added a test case for bug #15917.
mysql-test/t/having.test:
  Added a test case for bug #15917.
sql/item.cc:
  Fixed bug #15917: unexpected complain for a NIST test case.
  The problem was due to the fact that with --lower-case-table-names set to 1 
  the function find_field_in_group did not convert the prefix 'HU' in
  HU.PROJ.CITY into lower case when looking for it in the group list. Yet the
  names in the group list were extended by the database name in lower case.
  The needed conversion was added to the code of find_field_in_group.
This commit is contained in:
unknown
2006-04-06 15:29:15 -07:00
parent 8ec7190dac
commit 998b9d8b14
3 changed files with 88 additions and 0 deletions
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35
mysql-test/r/having.result
View File

@ -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;

44
mysql-test/t/having.test
View File

@ -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;

9
sql/item.cc
View File

@ -3054,6 +3054,7 @@ 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)
@ -3065,6 +3066,14 @@ 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)