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wl#3700 - post-review fixes:

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s/ulonglong/key_part_map/, comments
This commit is contained in:
serg@janus.mylan
2007-03-17 00:13:25 +01:00
parent 55a548cf4d
commit 68fd66e853
47 changed files with 187 additions and 183 deletions
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29
sql/handler.h
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@@ -867,17 +867,17 @@ public:
{}
};
uint calculate_key_len(TABLE *, uint, const byte *, ulonglong);
uint calculate_key_len(TABLE *, uint, const byte *, key_part_map);
/*
bitmap with first N+1 bits set
(keypart_map for a key prefix of [0..N] keyparts)
*/
#define make_keypart_map(N) (((ulonglong)2 << (N)) - 1)
#define make_keypart_map(N) (((key_part_map)2 << (N)) - 1)
/*
bitmap with first N bits set
(keypart_map for a key prefix of [0..N-1] keyparts)
*/
#define make_prev_keypart_map(N) (((ulonglong)1 << (N)) - 1)
#define make_prev_keypart_map(N) (((key_part_map)1 << (N)) - 1)
/*
The handler class is the interface for dynamically loadable
@@ -1219,14 +1219,26 @@ public:
enum ha_rkey_function find_flag)
{ return HA_ERR_WRONG_COMMAND; }
public:
virtual int index_read(byte * buf, const byte * key, ulonglong keypart_map,
/**
@brief
Positions an index cursor to the index specified in the handle. Fetches the
row if available. If the key value is null, begin at the first key of the
index.
*/
virtual int index_read(byte * buf, const byte * key, key_part_map keypart_map,
enum ha_rkey_function find_flag)
{
uint key_len= calculate_key_len(table, active_index, key, keypart_map);
return index_read(buf, key, key_len, find_flag);
}
/**
@brief
Positions an index cursor to the index specified in the handle. Fetches the
row if available. If the key value is null, begin at the first key of the
index.
*/
virtual int index_read_idx(byte * buf, uint index, const byte * key,
ulonglong keypart_map,
key_part_map keypart_map,
enum ha_rkey_function find_flag);
virtual int index_next(byte * buf)
{ return HA_ERR_WRONG_COMMAND; }
@@ -1241,8 +1253,13 @@ public:
virtual int index_read_last(byte * buf, const byte * key, uint key_len)
{ return (my_errno=HA_ERR_WRONG_COMMAND); }
public:
/**
@brief
The following functions works like index_read, but it find the last
row with the current key value or prefix.
*/
virtual int index_read_last(byte * buf, const byte * key,
ulonglong keypart_map)
key_part_map keypart_map)
{
uint key_len= calculate_key_len(table, active_index, key, keypart_map);
return index_read_last(buf, key, key_len);