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Fixed that LEFT OUTER JOIN was replaced with a regulat join

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in some cases, because "charset(x) = 'string'" was considered
as "x is not null" due to incorrect not_null_tables().
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unknown
2005-03-24 18:10:46 +04:00
parent 2621e38bf9
commit 9b2e4c7c60
4 changed files with 40 additions and 1 deletions
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14
mysql-test/t/func_str.test
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@@ -376,6 +376,20 @@ insert into t1 values (null);
select charset(a), collation(a), coercibility(a) from t1;
drop table t1;
select charset(null), collation(null), coercibility(null);
#
# Make sure OUTER JOIN is not replaced with a regular joun
#
CREATE TABLE t1 (a int, b int);
CREATE TABLE t2 (a int, b int);
INSERT INTO t1 VALUES (1,1),(2,2);
INSERT INTO t2 VALUES (2,2),(3,3);
select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
where collation(t2.a) = _utf8'binary' order by t1.a,t2.a;
select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
where charset(t2.a) = _utf8'binary' order by t1.a,t2.a;
select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
where coercibility(t2.a) = 2 order by t1.a,t2.a;
DROP TABLE t1, t2;
#
# test for SUBSTR