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::index_read_last() method has been added

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unknown 2002-11-28 15:19:42 +04:00
parent 683d777ad8
commit 09fc04ad5f
2 changed files with 10 additions and 1 deletions
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10
sql/ha_heap.cc
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@ -81,6 +81,15 @@ int ha_heap::index_read(byte * buf, const byte * key, uint key_len,
return error; return error;
} }
int ha_heap::index_read_last(byte *buf, const byte *key, uint key_len)
{
statistic_increment(ha_read_key_count, &LOCK_status);
int error= heap_rkey(file, buf, active_index, key, key_len,
HA_READ_PREFIX_LAST);
table->status= error ? STATUS_NOT_FOUND : 0;
return error;
}
int ha_heap::index_read_idx(byte * buf, uint index, const byte * key, int ha_heap::index_read_idx(byte * buf, uint index, const byte * key,
uint key_len, enum ha_rkey_function find_flag) uint key_len, enum ha_rkey_function find_flag)
{ {
@ -90,7 +99,6 @@ int ha_heap::index_read_idx(byte * buf, uint index, const byte * key,
return error; return error;
} }
int ha_heap::index_next(byte * buf) int ha_heap::index_next(byte * buf)
{ {
statistic_increment(ha_read_next_count,&LOCK_status); statistic_increment(ha_read_next_count,&LOCK_status);

1
sql/ha_heap.h
View File

@ -67,6 +67,7 @@ class ha_heap: public handler
uint key_len, enum ha_rkey_function find_flag); uint key_len, enum ha_rkey_function find_flag);
int index_read_idx(byte * buf, uint idx, const byte * key, int index_read_idx(byte * buf, uint idx, const byte * key,
uint key_len, enum ha_rkey_function find_flag); uint key_len, enum ha_rkey_function find_flag);
int index_read_last(byte * buf, const byte * key, uint key_len);
int index_next(byte * buf); int index_next(byte * buf);
int index_prev(byte * buf); int index_prev(byte * buf);
int index_first(byte * buf); int index_first(byte * buf);