1berry/MariaDB-server
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge ibabaev@bk-internal.mysql.com:/home/bk/mysql-5.0

Browse Source 
into rurik.mysql.com:/home/igor/mysql-5.0


mysql-test/r/connect.result:
  Auto merged
mysql-test/t/connect.test:
  Auto merged
ndb/src/mgmsrv/MgmtSrvr.cpp:
  Auto merged
sql/sql_class.cc:
  Auto merged
This commit is contained in:
unknown 2005-09-08 21:22:37 -07:00
commit 65ba93fda9
3 changed files with 93 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
mysql-test/r/olap.result
View File

@ -555,6 +555,31 @@ IFNULL(a, 'TEST') COALESCE(b, 'TEST')
4 TEST
TEST TEST
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT(10) NOT NULL, b INT(10) NOT NULL);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (1, 2);
SELECT a, b, a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;
a b c count
1 1 1 1
1 1 NULL 1
1 2 1 1
1 2 NULL 1
1 NULL NULL 2
NULL NULL NULL 2
DROP TABLE t1;
CREATE TABLE t1 (a int(11) NOT NULL);
INSERT INTO t1 VALUES (1),(2);
SELECT * FROM (SELECT a, a + 1, COUNT(*) FROM t1 GROUP BY a WITH ROLLUP) t;
a a + 1 COUNT(*)
1 2 1
2 3 1
NULL NULL 2
SELECT * FROM (SELECT a, LENGTH(a), COUNT(*) FROM t1 GROUP BY a WITH ROLLUP) t;
a LENGTH(a) COUNT(*)
1 1 1
2 1 1
NULL NULL 2
DROP TABLE t1;
CREATE TABLE t1(id int, type char(1));
INSERT INTO t1 VALUES
(1,"A"),(2,"C"),(3,"A"),(4,"A"),(5,"B"),
@ -577,15 +602,19 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using filesort
DROP VIEW v1;
DROP TABLE t1;
CREATE TABLE t1 (a INT(10) NOT NULL, b INT(10) NOT NULL);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (1, 2);
SELECT a, b, a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;
a b c count
1 1 1 1
1 1 NULL 1
1 2 1 1
1 2 NULL 1
1 NULL NULL 2
NULL NULL NULL 2
CREATE TABLE t1 (a int(11) NOT NULL);
INSERT INTO t1 VALUES (1),(2);
CREATE VIEW v1 AS
SELECT a, LENGTH(a), COUNT(*) FROM t1 GROUP BY a WITH ROLLUP;
DESC v1;
Field Type Null Key Default Extra
a bigint(11) YES NULL
LENGTH(a) bigint(10) YES NULL
COUNT(*) bigint(21) NO 0
SELECT * FROM v1;
a LENGTH(a) COUNT(*)
1 1 1
2 1 1
NULL NULL 2
DROP VIEW v1;
DROP TABLE t1;

46
mysql-test/t/olap.test
View File

@ -250,6 +250,33 @@ SELECT IFNULL(a, 'TEST'), COALESCE(b, 'TEST') FROM t2
DROP TABLE t1,t2;
#
# Test for bug #11543: ROLLUP query with a repeated column in GROUP BY
#
CREATE TABLE t1 (a INT(10) NOT NULL, b INT(10) NOT NULL);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (1, 2);
SELECT a, b, a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;
DROP TABLE t1;
#
# Bug #12885(1): derived table specified by a subquery with
# ROLLUP over expressions on not nullable group by attributes
#
CREATE TABLE t1 (a int(11) NOT NULL);
INSERT INTO t1 VALUES (1),(2);
SELECT * FROM (SELECT a, a + 1, COUNT(*) FROM t1 GROUP BY a WITH ROLLUP) t;
SELECT * FROM (SELECT a, LENGTH(a), COUNT(*) FROM t1 GROUP BY a WITH ROLLUP) t;
DROP TABLE t1;
# End of 4.1 tests
#
# Tests for bug #11639: ROLLUP over view executed through filesort
#
@ -266,15 +293,20 @@ EXPLAIN SELECT type FROM v1 GROUP BY type WITH ROLLUP;
DROP VIEW v1;
DROP TABLE t1;
# Test for bug #11543: ROLLUP query with a repeated column in GROUP BY
#
# Bug #12885(2): view specified by a subquery with
# ROLLUP over expressions on not nullable group by attributes
#
CREATE TABLE t1 (a INT(10) NOT NULL, b INT(10) NOT NULL);
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 VALUES (1, 2);
CREATE TABLE t1 (a int(11) NOT NULL);
INSERT INTO t1 VALUES (1),(2);
SELECT a, b, a AS c, COUNT(*) AS count FROM t1 GROUP BY a, b, c WITH ROLLUP;
CREATE VIEW v1 AS
SELECT a, LENGTH(a), COUNT(*) FROM t1 GROUP BY a WITH ROLLUP;
DESC v1;
SELECT * FROM v1;
DROP VIEW v1;
DROP TABLE t1;
# End of 4.1 tests

17
sql/sql_select.cc
View File

@ -13043,6 +13043,8 @@ void free_underlaid_joins(THD *thd, SELECT_LEX *select)
The function replaces occurrences of group by fields in expr
by ref objects for these fields unless they are under aggregate
functions.
The function also corrects value of the the maybe_null attribute
for the items of all subexpressions containing group by fields.
IMPLEMENTATION
The function recursively traverses the tree of the expr expression,
@ -13053,6 +13055,9 @@ void free_underlaid_joins(THD *thd, SELECT_LEX *select)
This substitution is needed GROUP BY queries with ROLLUP if
SELECT list contains expressions over group by attributes.
TODO: Some functions are not null-preserving. For those functions
updating of the maybe_null attribute is an overkill.
EXAMPLES
SELECT a+1 FROM t1 GROUP BY a WITH ROLLUP
SELECT SUM(a)+a FROM t1 GROUP BY a WITH ROLLUP
@ -13074,6 +13079,7 @@ static bool change_group_ref(THD *thd, Item_func *expr, ORDER *group_list,
arg != arg_end; arg++)
{
Item *item= *arg;
bool arg_changed= FALSE;
if (item->type() == Item::FIELD_ITEM || item->type() == Item::REF_ITEM)
{
ORDER *group_tmp;
@ -13086,15 +13092,20 @@ static bool change_group_ref(THD *thd, Item_func *expr, ORDER *group_list,
item->name)))
return 1; // fatal_error is set
thd->change_item_tree(arg, new_item);
*changed= TRUE;
arg_changed= TRUE;
}
}
}
else if (item->type() == Item::FUNC_ITEM)
{
if (change_group_ref(thd, (Item_func *) item, group_list, changed))
if (change_group_ref(thd, (Item_func *) item, group_list, &arg_changed))
return 1;
}
if (arg_changed)
{
expr->maybe_null= 1;
*changed= TRUE;
}
}
}
return 0;
@ -13157,7 +13168,7 @@ bool JOIN::rollup_init()
}
if (item->type() == Item::FUNC_ITEM)
{
bool changed= 0;
bool changed= FALSE;
if (change_group_ref(thd, (Item_func *) item, group_list, &changed))
return 1;
/*