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Merge rurik.mysql.com:/home/igor/dev/mysql-5.0-0

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


sql/item.cc:
  Auto merged
sql/opt_sum.cc:
  Auto merged
This commit is contained in:
unknown 2006-04-06 15:31:30 -07:00
commit d26bf308bd
4 changed files with 95 additions and 20 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

@ -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)

27
sql/opt_sum.cc
View File

@ -123,8 +123,11 @@ int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds)
If the storage manager of 'tl' gives exact row count, compute the total
number of rows. If there are no outer table dependencies, this count
may be used as the real count.
Schema tables are filled after this function is invoked, so we can't
get row count
*/
if (tl->table->file->table_flags() & HA_NOT_EXACT_COUNT)
if ((tl->table->file->table_flags() & HA_NOT_EXACT_COUNT) ||
tl->schema_table)
{
is_exact_count= FALSE;
count= 1; // ensure count != 0
@ -149,31 +152,15 @@ int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds)
switch (item_sum->sum_func()) {
case Item_sum::COUNT_FUNC:
/*
If the expr in count(expr) can never be null we can change this
If the expr in COUNT(expr) can never be null we can change this
to the number of rows in the tables if this number is exact and
there are no outer joins.
*/
if (!conds && !((Item_sum_count*) item)->args[0]->maybe_null &&
!outer_tables && is_exact_count)
{
longlong count= 1;
TABLE_LIST *table;
for (table= tables; table; table= table->next_leaf)
{
if (outer_tables || (table->table->file->table_flags() &
HA_NOT_EXACT_COUNT) || table->schema_table)
{
const_result= 0; // Can't optimize left join
break;
}
tables->table->file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
count*= table->table->file->records;
}
if (!table)
{
((Item_sum_count*) item)->make_const(count);
recalc_const_item= 1;
}
((Item_sum_count*) item)->make_const(count);
recalc_const_item= 1;
}
else
const_result= 0;