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fixed column number fetchinmg for subqueries. (BUG#8020)

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fixed cols() method call (it have to be called only after fix_fields())


mysql-test/r/subselect.result:
  Comparison subquery with * and row
mysql-test/t/subselect.test:
  Comparison subquery with * and row
sql/item_cmpfunc.h:
  initialization allowed_arg_cols for autodetection
sql/item_func.cc:
  support of allowed_arg_cols autodetection by first argument
sql/item_func.h:
  commant
sql/item_subselect.cc:
  correct column number fetching for subqueries
sql/sql_lex.h:
  method to check that UNION is prepared
This commit is contained in:
unknown
2005-01-24 14:25:44 +02:00
parent 1850f74925
commit d514a06a86
7 changed files with 59 additions and 7 deletions
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14
mysql-test/r/subselect.result
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@ -2160,3 +2160,17 @@ ERROR 42S22: Unknown column 'a2' in 'scalar IN/ALL/ANY subquery'
select * from t1 where a1 > any(select b1 from t2);
a1
drop table t1,t2;
create table t1 (a integer, b integer);
select (select * from t1) = (select 1,2);
(select * from t1) = (select 1,2)
NULL
select (select 1,2) = (select * from t1);
(select 1,2) = (select * from t1)
NULL
select row(1,2) = ANY (select * from t1);
row(1,2) = ANY (select * from t1)
0
select row(1,2) != ALL (select * from t1);
row(1,2) != ALL (select * from t1)
1
drop table t1;