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WL#1724 "Min/Max Optimization for Queries with Group By Clause"

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- after-review changes
- merged with the source tree from 204-08-27
This commit is contained in:
timour@mysql.com
2004-08-27 16:37:13 +03:00
parent a5f063e0da
commit e2cd3dd1ce
19 changed files with 5077 additions and 204 deletions
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8
sql/mysql_priv.h
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@ -733,7 +733,8 @@ bool add_proc_to_list(THD *thd, Item *item);
TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
SQL_SELECT *make_select(TABLE *head, table_map const_tables,
table_map read_tables, COND *conds, int *error);
table_map read_tables, COND *conds, int *error,
bool allow_null_cond= false);
enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
IGNORE_ERRORS};
extern const Item **not_found_item;
@ -814,8 +815,9 @@ void print_plan(JOIN* join, double read_time, double record_count,
void mysql_print_status(THD *thd);
/* key.cc */
int find_ref_key(TABLE *form,Field *field, uint *offset);
void key_copy(byte *key,TABLE *form,uint index,uint key_length);
void key_restore(TABLE *form,byte *key,uint index,uint key_length);
void key_copy(byte *to_key, byte *from_record, KEY *key_info, uint key_length);
void key_restore(byte *to_record, byte *from_key, KEY *key_info,
uint key_length);
bool key_cmp_if_same(TABLE *form,const byte *key,uint index,uint key_length);
void key_unpack(String *to,TABLE *form,uint index);
bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields);