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New multi-table-update code

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New (simpler) internal timestamp handling.
More debuging to heap tables.
Small cleanups to multi-table-delete
false -> 0 and true -> 1  (We should use TRUE and FALSE)
This commit is contained in:
monty@mashka.mysql.fi
2002-11-29 16:40:18 +02:00
parent fa7798596d
commit 6603d75213
29 changed files with 776 additions and 636 deletions
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63
sql/sql_class.h
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@ -592,7 +592,7 @@ public:
virtual int prepare(List<Item> &list) { return 0; }
virtual bool send_fields(List<Item> &list,uint flag)=0;
virtual bool send_data(List<Item> &items)=0;
virtual void initialize_tables (JOIN *join=0) {}
virtual bool initialize_tables (JOIN *join=0) { return 0; }
virtual void send_error(uint errcode,const char *err)
{
::send_error(&thd->net,errcode,err);
@ -656,10 +656,10 @@ class select_insert :public select_result {
List<Item> *fields;
ulonglong last_insert_id;
COPY_INFO info;
uint save_time_stamp;
select_insert(TABLE *table_par,List<Item> *fields_par,enum_duplicates duplic)
:table(table_par),fields(fields_par), last_insert_id(0), save_time_stamp(0) {
:table(table_par),fields(fields_par), last_insert_id(0)
{
bzero((char*) &info,sizeof(info));
info.handle_duplicates=duplic;
}
@ -703,8 +703,8 @@ class select_union :public select_result {
public:
TABLE *table;
COPY_INFO info;
uint save_time_stamp;
TMP_TABLE_PARAM *tmp_table_param;
bool not_describe;
select_union(TABLE *table_par);
~select_union();
@ -814,37 +814,36 @@ public:
bool send_fields(List<Item> &list,
uint flag) { return 0; }
bool send_data(List<Item> &items);
void initialize_tables (JOIN *join);
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 {
TABLE_LIST *update_tables, *table_being_updated;
// Unique **tempfiles;
COPY_INFO *infos;
TABLE **tmp_tables;
THD *thd;
ha_rows updated, found;
List<Item> fields;
List <Item> **fields_by_tables;
enum enum_duplicates dupl;
uint num_of_tables, num_fields, num_updated, *save_time_stamps, *field_sequence;
int error;
bool do_update, not_trans_safe;
public:
multi_update(THD *thd_arg, TABLE_LIST *ut, List<Item> &fs,
enum enum_duplicates handle_duplicates,
uint num);
~multi_update();
int prepare(List<Item> &list);
bool send_fields(List<Item> &list,
uint flag) { return 0; }
bool send_data(List<Item> &items);
void initialize_tables (JOIN *join);
void send_error(uint errcode,const char *err);
int do_updates (bool from_send_error);
bool send_eof();
};
class multi_update : public select_result
{
TABLE_LIST *all_tables, *update_tables, *table_being_updated;
THD *thd;
TABLE **tmp_tables, *main_table;
TMP_TABLE_PARAM *tmp_table_param;
ha_rows updated, found;
List <Item> *fields, *values;
List <Item> **fields_for_table, **values_for_table;
uint table_count;
Copy_field *copy_field;
enum enum_duplicates handle_duplicates;
bool do_update, trans_safe, transactional_tables, log_delayed;
public:
multi_update(THD *thd_arg, TABLE_LIST *ut, List<Item> *fields,
List<Item> *values, enum_duplicates handle_duplicates);
~multi_update();
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_updates (bool from_send_error);
bool send_eof();
};