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fixed bugs in temporary tables in subselect implementation (SCRUM)

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merging with switching on static tables optimization (SCRUM)
fixed subselects with uncacheable results
added test for fixed bugs from bugreports


mysql-test/r/subselect.result:
  changes in subselect test after switching on static tables optimization
  fixed bug test added
  uncacheable subselects
mysql-test/t/subselect.test:
  changes in subselect test after switching on static tables optimization
  fixed bug test added
  uncacheable subselects
sql/item_create.cc:
  fixed subselects with uncacheable results
sql/item_func.cc:
  fixed subselects with uncacheable results
sql/item_subselect.cc:
  fixed subselects with uncacheable results
  clean up
sql/item_subselect.h:
  fixed subselects with uncacheable results
sql/sql_lex.cc:
  fixed subselects with uncacheable results
sql/sql_lex.h:
  fixed subselects with uncacheable results
sql/sql_select.cc:
  fixed bugs in temporary tables in subselect implementation
  fixed subselects with uncacheable results
sql/sql_union.cc:
  fixed subselects with uncacheable results
sql/sql_yacc.yy:
  fixed subselects with uncacheable results
This commit is contained in:
unknown 2003-01-28 14:48:12 +02:00
commit ca0d06d599
11 changed files with 246 additions and 52 deletions
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9
sql/item_subselect.h
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@ -223,7 +223,8 @@ public:
virtual void fix_length_and_dec(Item_cache** row)= 0;
virtual int exec()= 0;
virtual uint cols()= 0; /* return number of columnss in select */
virtual bool depended()= 0; /* depended from outer select */
virtual bool dependent()= 0; /* depended from outer select */
virtual bool uncacheable()= 0; /* query is uncacheable */
enum Item_result type() { return res_type; }
virtual bool check_loop(uint id)= 0;
virtual void exclude()= 0;
@ -245,7 +246,8 @@ public:
void fix_length_and_dec(Item_cache** row);
int exec();
uint cols();
bool depended();
bool dependent();
bool uncacheable();
bool check_loop(uint id);
void exclude();
};
@ -262,7 +264,8 @@ public:
void fix_length_and_dec(Item_cache** row);
int exec();
uint cols();
bool depended();
bool dependent();
bool uncacheable();
bool check_loop(uint id);
void exclude();
};