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join_outer.result, join_outer.test:

Browse Source 
Added a test case for bug #11285.
sql_select.cc:
  Fixed bug #11285.
  The problem occurred with Item_equal in an 'on expression'
  that was evaluated to false.


sql/sql_select.cc:
  Fixed bug #11285.
  The problem occurred with Item_equal in an 'on expression'
  that was evaluated to false.
mysql-test/t/join_outer.test:
  Added a test case for bug #11285.
mysql-test/r/join_outer.result:
  Added a test case for bug #11285.
This commit is contained in:
unknown
2005-06-15 02:02:25 -07:00
parent d5600efdc1
commit 098d02eb44
3 changed files with 21 additions and 1 deletions
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8
mysql-test/r/join_outer.result
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@ -975,3 +975,11 @@ EMPNUM NAME GRP
0 KERI 10 0 KERI 10
9 BARRY NULL 9 BARRY NULL
DROP TABLE t1,t2; DROP TABLE t1,t2;
CREATE TABLE t1 (c11 int);
CREATE TABLE t2 (c21 int);
INSERT INTO t1 VALUES (30), (40), (50);
INSERT INTO t2 VALUES (300), (400), (500);
SELECT * FROM t1 LEFT JOIN t2 ON (c11=c21 AND c21=30) WHERE c11=40;
c11 c21
40 NULL
DROP TABLE t1, t2;

12
mysql-test/t/join_outer.test
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@ -698,4 +698,16 @@ SELECT * FROM v1 WHERE EMPNUM < 10;
DROP TABLE t1,t2; DROP TABLE t1,t2;
#
# Test for bug #11285: false Item_equal on expression in outer join
#
CREATE TABLE t1 (c11 int);
CREATE TABLE t2 (c21 int);
INSERT INTO t1 VALUES (30), (40), (50);
INSERT INTO t2 VALUES (300), (400), (500);
SELECT * FROM t1 LEFT JOIN t2 ON (c11=c21 AND c21=30) WHERE c11=40;
DROP TABLE t1, t2;

2
sql/sql_select.cc
View File

@ -7064,7 +7064,7 @@ static COND* substitute_for_best_equal_field(COND *cond,
List_iterator_fast<Item_equal> it(cond_equal->current_level); List_iterator_fast<Item_equal> it(cond_equal->current_level);
while ((item_equal= it++)) while ((item_equal= it++))
{ {
eliminate_item_equal(cond, cond_equal->upper_levels, item_equal); cond= eliminate_item_equal(cond, cond_equal->upper_levels, item_equal);
} }
} }
} }