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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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sql/sql_lex.h
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@ -371,6 +371,7 @@ public:
ulong init_prepare_fake_select_lex(THD *thd);
int change_result(select_subselect *result, select_subselect *old_result);
inline bool is_prepared() { return prepared; }
friend void lex_start(THD *thd, uchar *buf, uint length);
friend int subselect_union_engine::exec();