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Fixed memory allocation in Unique to not allocate too much memory

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This commit is contained in:
monty@mashka.mysql.fi
2003-06-26 07:56:55 +03:00
parent 7655f05dc2
commit 5f556f11e0
5 changed files with 40 additions and 28 deletions
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42
sql/sql_class.h
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@ -781,11 +781,12 @@ class Unique :public Sql_alloc
TREE tree;
byte *record_pointers;
bool flush();
uint size;
public:
ulong elements;
Unique(qsort_cmp2 comp_func, void * comp_func_fixed_arg,
uint size, ulong max_in_memory_size_arg);
uint size_arg, ulong max_in_memory_size_arg);
~Unique();
inline bool unique_add(gptr ptr)
{
@ -800,26 +801,27 @@ public:
friend int unique_write_to_ptrs(gptr key, element_count count, Unique *unique);
};
class multi_delete : public select_result {
TABLE_LIST *delete_tables, *table_being_deleted;
Unique **tempfiles;
THD *thd;
ha_rows deleted;
uint num_of_tables;
int error;
bool do_delete, transactional_tables, log_delayed, normal_tables;
public:
multi_delete(THD *thd, TABLE_LIST *dt, uint num_of_tables);
~multi_delete();
int prepare(List<Item> &list);
bool send_fields(List<Item> &list,
class multi_delete : public select_result
{
TABLE_LIST *delete_tables, *table_being_deleted;
Unique **tempfiles;
THD *thd;
ha_rows deleted;
uint num_of_tables;
int error;
bool do_delete, transactional_tables, log_delayed, normal_tables;
public:
multi_delete(THD *thd, TABLE_LIST *dt, uint num_of_tables);
~multi_delete();
int prepare(List<Item> &list);
bool send_fields(List<Item> &list,
uint flag) { return 0; }
bool send_data(List<Item> &items);
bool initialize_tables (JOIN *join);
void send_error(uint errcode,const char *err);
int do_deletes (bool from_send_error);
bool send_eof();
};
bool send_data(List<Item> &items);
bool initialize_tables (JOIN *join);
void send_error(uint errcode,const char *err);
int do_deletes (bool from_send_error);
bool send_eof();
};
class multi_update : public select_result
{