fixed left expression of IN/ALL/ANY subquery transformation support (BUG#8888)

mysql-test/r/subselect.result:
  result changing
  fixed last test
  test of transformation of left expression of subquery
mysql-test/t/subselect.test:
  fixed last test
  test of transformation of left expression of subquery
sql/item_subselect.cc:
  fixfields made for left part of IN/ALL/ANY subquery before calling cols() to detect type of transformation (scalar or row)
  similar action of both transformation moved to separate function
sql/item_subselect.h:
  optimised field initialization and new method

1 files changed, 4 insertions, 4 deletions

diff --git a/sql/item_subselect.h b/sql/item_subselect.h
index ab2d441ed7a..7582429fbb3 100644
--- a/sql/item_subselect.h
+++ b/sql/item_subselect.h
@@ -220,8 +220,8 @@ public:
 
   Item_in_subselect(Item * left_expr, st_select_lex *select_lex);
   Item_in_subselect()
-    :Item_exists_subselect(), abort_on_null(0), transformed(0), upper_item(0)
-     
+    :Item_exists_subselect(), optimizer(0), abort_on_null(0), transformed(0),
+     upper_item(0)
   {}
 
   subs_type substype() { return IN_SUBS; }
@@ -232,8 +232,8 @@ public:
     was_null= 0;
   }
   trans_res select_transformer(JOIN *join);
-  trans_res single_value_transformer(JOIN *join,
-				     Comp_creator *func);
+  trans_res select_in_like_transformer(JOIN *join, Comp_creator *func);
+  trans_res single_value_transformer(JOIN *join, Comp_creator *func);
   trans_res row_value_transformer(JOIN * join);
   longlong val_int();
   double val();