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anotehr fix for Item_func_isnotnull::not_null_tables()

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This commit is contained in:
serg@serg.mylan
2005-03-14 11:04:42 +01:00
parent a6b3b8fa98
commit ada959edf8
3 changed files with 7 additions and 1 deletions
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4
mysql-test/r/join_outer.result
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@ -653,6 +653,10 @@ i i i
select * from t1 natural left join t2 where (t2.i is not null)=0;
i i
1 NULL
select * from t1 natural left join t2 where (t2.i is not null) is not null;
i i
1 NULL
2 2
drop table t1,t2,t3;
create table t1 (f1 integer,f2 integer,f3 integer);
create table t2 (f2 integer,f4 integer);

1
mysql-test/t/join_outer.test
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@ -431,6 +431,7 @@ insert into t2 values(2),(3);
insert into t3 values(2),(4);
select * from t1 natural left join t2 natural left join t3;
select * from t1 natural left join t2 where (t2.i is not null)=0;
select * from t1 natural left join t2 where (t2.i is not null) is not null;
drop table t1,t2,t3;
#

3
sql/item_cmpfunc.h
View File

@ -916,7 +916,8 @@ public:
}
const char *func_name() const { return "isnotnull"; }
optimize_type select_optimize() const { return OPTIMIZE_NULL; }
table_map not_null_tables() const { return abort_on_null ? used_tables() : 0; }
table_map not_null_tables() const
{ return abort_on_null ? not_null_tables_cache : 0; }
Item *neg_transformer(THD *thd);
void print(String *str);
CHARSET_INFO *compare_collation() { return args[0]->collation.collation; }