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fixed way of forward reference detection to support literal constant (BUG#8025)

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mysql-test/r/subselect.result:
  Forward reference detection
mysql-test/t/subselect.test:
  Forward reference detection
sql/item.cc:
  now forward reference is detected via ref_pointer_array, because some literal constants are 'fixed' just after creation
sql/sql_base.cc:
  fill ref_pointer_array with zerows for forward reference detection.
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unknown
2005-01-24 17:17:19 +02:00
parent 9182786918
commit 38e664cf64
4 changed files with 48 additions and 2 deletions
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16
mysql-test/t/subselect.test
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@ -1449,3 +1449,19 @@ select row(1,(2,2)) = (select * from t1 );
-- error 1241
select (select * from t1) = row(1,(2,2));
drop table t1;
#
# Forward reference detection
#
create table t1 (a integer);
insert into t1 values (1);
-- error 1247
select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx ;
-- error 1247
select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
select 1 as xx, 1 = ALL ( select 1 from t1 where 1 = xx );
-- error 1247
select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx;
-- error 1247
select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx from DUAL;
drop table t1;