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after review fixes

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mysql-test/r/union.result:
  new tests, more correct results for old one
mysql-test/t/union.test:
  new tests, more correct results for old one
sql/field.cc:
  new way to make field types csting
sql/field.h:
  new way to make field types csting
sql/item.cc:
  new way to make field types csting
sql/sql_derived.cc:
  fixed typo
sql/sql_lex.h:
  comment added
This commit is contained in:
unknown 2003-11-23 21:26:43 +02:00
commit 381a8db6a6
7 changed files with 223 additions and 87 deletions
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8
sql/sql_lex.h
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@ -309,7 +309,13 @@ protected:
public:
// list of fields which points to temporary table for union
List<Item> item_list;
// list of types of items inside union (used for union & derived tables)
/*
list of types of items inside union (used for union & derived tables)
Item_type_holders from which this list consist may have pointers to Field,
pointers is valid only after preparing SELECTS of this unit and before
any SELECT of this unit execution
*/
List<Item> types;
/*
Pointer to 'last' select or pointer to unit where stored