diff options
Diffstat (limited to 'sql/examples/ha_tina.h')
| -rw-r--r-- | sql/examples/ha_tina.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/sql/examples/ha_tina.h b/sql/examples/ha_tina.h index 5679d77a4dc..43479c7c11c 100644 --- a/sql/examples/ha_tina.h +++ b/sql/examples/ha_tina.h @@ -43,6 +43,11 @@ class ha_tina: public handler off_t next_position; /* Next position in the file scan */ byte byte_buffer[IO_SIZE]; String buffer; + /* + The chain contains "holes" in the file, occured because of + deletes/updates. It is used in rnd_end() to get rid of them + in the end of the query. + */ tina_set chain_buffer[DEFAULT_CHAIN_LENGTH]; tina_set *chain; tina_set *chain_ptr; @@ -78,7 +83,11 @@ public: */ virtual double scan_time() { return (double) (records+deleted) / 20.0+10; } /* The next method will never be called */ - virtual double read_time(ha_rows rows) { DBUG_ASSERT(0); return((double) rows / 20.0+1); } + virtual double read_time(uint index, uint ranges, ha_rows rows) + { + DBUG_ASSERT(0); + return((double) rows / 20.0+1); + } virtual bool fast_key_read() { return 1;} /* TODO: return actual upper bound of number of records in the table. @@ -110,10 +119,8 @@ public: int reset(void); int external_lock(THD *thd, int lock_type); int delete_all_rows(void); - ha_rows records_in_range(int inx, const byte *start_key,uint start_key_len, - enum ha_rkey_function start_search_flag, - const byte *end_key,uint end_key_len, - enum ha_rkey_function end_search_flag); + ha_rows records_in_range(uint inx, key_range *min_key, + key_range *max_key); // int delete_table(const char *from); // int rename_table(const char * from, const char * to); int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info); |