void hp_make_key(HP_KEYDEF *keydef, uchar *key, const uchar *rec)
{
HA_KEYSEG *seg,*endseg;
for (seg=keydef->seg,endseg=seg+keydef->keysegs ; seg < endseg ; seg++)
{
const CHARSET_INFO *cs= seg->charset;
uint char_length= seg->length;
const uchar *pos= rec + seg->start;
if (seg->null_bit)
*key++= MY_TEST(rec[seg->null_pos] & seg->null_bit);
if (seg->flag & HA_BLOB_PART)
{
uint tmp_length= hp_calc_blob_length(seg->bit_start, pos);
uint length= MY_MIN(seg->length, tmp_length);
memcpy(&pos, rec + seg->bit_start, sizeof(char *));
if (cs->mbmaxlen > 1)
{
char_length= my_charpos(cs, pos, pos + seg->length,
char_length / cs->mbmaxlen);
set_if_smaller(char_length, length); /* QQ: ok to remove? */
}
store_key_length_inc(key, char_length);
}
else
{
if (cs->mbmaxlen > 1)
{
char_length= my_charpos(cs, pos, pos + seg->length,
char_length / cs->mbmaxlen);
set_if_smaller(char_length, seg->length); /* QQ: ok to remove? */
}
if (seg->type == HA_KEYTYPE_VARTEXT1)
char_length+= seg->bit_start; /* Copy also length */
}
memcpy(key, pos, (size_t) char_length);
key+= char_length;
}
}
MARIA_KEY *_ma_make_key(MARIA_HA *info, MARIA_KEY *int_key, uint keynr,
uchar *key, const uchar *record,
MARIA_RECORD_POS filepos, ulonglong trid)
{
const uchar *pos;
reg1 HA_KEYSEG *keyseg;
my_bool is_ft;
DBUG_ENTER("_ma_make_key");
int_key->data= key;
int_key->flag= 0; /* Always return full key */
int_key->keyinfo= info->s->keyinfo + keynr;
is_ft= int_key->keyinfo->flag & HA_FULLTEXT;
for (keyseg= int_key->keyinfo->seg ; keyseg->type ;keyseg++)
{
enum ha_base_keytype type=(enum ha_base_keytype) keyseg->type;
uint length=keyseg->length;
uint char_length;
CHARSET_INFO *cs=keyseg->charset;
if (keyseg->null_bit)
{
if (record[keyseg->null_pos] & keyseg->null_bit)
{
*key++= 0; /* NULL in key */
continue;
}
*key++=1; /* Not NULL */
}
char_length= ((!is_ft && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen :
length);
pos= record+keyseg->start;
if (type == HA_KEYTYPE_BIT)
{
if (keyseg->bit_length)
{
uchar bits= get_rec_bits(record + keyseg->bit_pos,
keyseg->bit_start, keyseg->bit_length);
*key++= (char) bits;
length--;
}
memcpy(key, pos, length);
key+= length;
continue;
}
if (keyseg->flag & HA_SPACE_PACK)
{
if (type != HA_KEYTYPE_NUM)
{
length= (uint) cs->cset->lengthsp(cs, (const char*)pos, length);
}
else
{
const uchar *end= pos + length;
while (pos < end && pos[0] == ' ')
pos++;
length= (uint) (end-pos);
}
FIX_LENGTH(cs, pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy(key, pos, (size_t) char_length);
key+=char_length;
continue;
}
if (keyseg->flag & HA_VAR_LENGTH_PART)
{
uint pack_length= (keyseg->bit_start == 1 ? 1 : 2);
uint tmp_length= (pack_length == 1 ? (uint) *pos :
uint2korr(pos));
pos+= pack_length; /* Skip VARCHAR length */
set_if_smaller(length,tmp_length);
FIX_LENGTH(cs, pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy(key,pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_BLOB_PART)
{
uint tmp_length= _ma_calc_blob_length(keyseg->bit_start,pos);
uchar *blob_pos;
memcpy(&blob_pos, pos+keyseg->bit_start,sizeof(char*));
set_if_smaller(length,tmp_length);
FIX_LENGTH(cs, blob_pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy(key, blob_pos, (size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_SWAP_KEY)
{ /* Numerical column */
#ifdef HAVE_ISNAN
if (type == HA_KEYTYPE_FLOAT)
{
float nr;
float4get(nr,pos);
if (isnan(nr))
{
/* Replace NAN with zero */
bzero(key,length);
key+=length;
continue;
}
}
else if (type == HA_KEYTYPE_DOUBLE)
{
double nr;
float8get(nr,pos);
if (isnan(nr))
{
bzero(key,length);
key+=length;
continue;
}
}
#endif
pos+=length;
while (length--)
{
*key++ = *--pos;
}
continue;
}
FIX_LENGTH(cs, pos, length, char_length);
memcpy(key, pos, char_length);
if (length > char_length)
cs->cset->fill(cs, (char*) key+char_length, length-char_length, ' ');
key+= length;
}
_ma_dpointer(info->s, key, filepos);
int_key->data_length= (key - int_key->data);
int_key->ref_length= info->s->rec_reflength;
int_key->flag= 0;
if (_ma_have_versioning(info) && trid)
{
int_key->ref_length+= transid_store_packed(info,
key + int_key->ref_length,
(TrID) trid);
int_key->flag|= SEARCH_USER_KEY_HAS_TRANSID;
}
DBUG_PRINT("exit",("keynr: %d",keynr));
DBUG_DUMP_KEY("key", int_key);
DBUG_EXECUTE("key", _ma_print_key(DBUG_FILE, int_key););
uint _mi_make_key(MI_INFO *info, uint keynr, uchar *key,
const uchar *record, my_off_t filepos)
{
uchar *pos;
uchar *start;
HA_KEYSEG *keyseg;
my_bool is_ft= info->s->keyinfo[keynr].flag & HA_FULLTEXT;
DBUG_ENTER("_mi_make_key");
if (info->s->keyinfo[keynr].flag & HA_SPATIAL)
{
/*
TODO: nulls processing
*/
DBUG_RETURN(sp_make_key(info,keynr,key,record,filepos));
}
start=key;
for (keyseg=info->s->keyinfo[keynr].seg ; keyseg->type ;keyseg++)
{
enum ha_base_keytype type=(enum ha_base_keytype) keyseg->type;
uint length=keyseg->length;
uint char_length;
const CHARSET_INFO *cs= keyseg->charset;
if (keyseg->null_bit)
{
if (record[keyseg->null_pos] & keyseg->null_bit)
{
*key++= 0; /* NULL in key */
continue;
}
*key++=1; /* Not NULL */
}
char_length= ((!is_ft && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen :
length);
pos= (uchar*) record+keyseg->start;
if (type == HA_KEYTYPE_BIT)
{
if (keyseg->bit_length)
{
uchar bits= get_rec_bits((uchar*) record + keyseg->bit_pos,
keyseg->bit_start, keyseg->bit_length);
*key++= bits;
length--;
}
memcpy((uchar*) key, pos, length);
key+= length;
continue;
}
if (keyseg->flag & HA_SPACE_PACK)
{
if (type != HA_KEYTYPE_NUM)
{
length= cs->cset->lengthsp(cs, (char*) pos, length);
}
else
{
uchar *end= pos + length;
while (pos < end && pos[0] == ' ')
pos++;
length=(uint) (end-pos);
}
FIX_LENGTH(cs, pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy((uchar*) key,(uchar*) pos,(size_t) char_length);
key+=char_length;
continue;
}
if (keyseg->flag & HA_VAR_LENGTH_PART)
{
uint pack_length= (keyseg->bit_start == 1 ? 1 : 2);
uint tmp_length= (pack_length == 1 ? (uint) *(uchar*) pos :
uint2korr(pos));
pos+= pack_length; /* Skip VARCHAR length */
set_if_smaller(length,tmp_length);
FIX_LENGTH(cs, pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy((uchar*) key,(uchar*) pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_BLOB_PART)
{
uint tmp_length=_mi_calc_blob_length(keyseg->bit_start,pos);
memcpy(&pos,pos+keyseg->bit_start,sizeof(char*));
set_if_smaller(length,tmp_length);
FIX_LENGTH(cs, pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy((uchar*) key,(uchar*) pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_SWAP_KEY)
{ /* Numerical column */
if (type == HA_KEYTYPE_FLOAT)
{
float nr;
float4get(&nr,pos);
if (my_isnan(nr))
{
/* Replace NAN with zero */
memset(key, 0, length);
key+=length;
continue;
}
}
else if (type == HA_KEYTYPE_DOUBLE)
{
double nr;
float8get(&nr,pos);
if (my_isnan(nr))
{
memset(key, 0, length);
key+=length;
continue;
}
}
pos+=length;
while (length--)
{
*key++ = *--pos;
}
continue;
}
FIX_LENGTH(cs, pos, length, char_length);
memcpy((uchar*) key, pos, char_length);
if (length > char_length)
cs->cset->fill(cs, (char*) key+char_length, length-char_length, ' ');
key+= length;
}
_mi_dpointer(info,key,filepos);
DBUG_PRINT("exit",("keynr: %d",keynr));
DBUG_DUMP("key",(uchar*) start,(uint) (key-start)+keyseg->length);
DBUG_EXECUTE("key",
_mi_print_key(DBUG_FILE,info->s->keyinfo[keynr].seg,start,
(uint) (key-start)););
uint hp_rb_pack_key(HP_KEYDEF *keydef, uchar *key, const uchar *old,
key_part_map keypart_map)
{
HA_KEYSEG *seg, *endseg;
uchar *start_key= key;
for (seg= keydef->seg, endseg= seg + keydef->keysegs;
seg < endseg && keypart_map; old+= seg->length, seg++)
{
uint char_length;
keypart_map>>= 1;
if (seg->null_bit)
{
/* Convert NULL from MySQL representation into HEAP's. */
if (!(*key++= (char) 1 - *old++))
{
/* Add key pack length (2) to key for VARCHAR segments */
if (seg->type == HA_KEYTYPE_VARTEXT1)
old+= 2;
continue;
}
}
if (seg->flag & HA_SWAP_KEY)
{
uint length= seg->length;
uchar *pos= (uchar*) old + length;
while (length--)
{
*key++= *--pos;
}
continue;
}
if (seg->flag & (HA_VAR_LENGTH_PART | HA_BLOB_PART))
{
/* Length of key-part used with heap_rkey() always 2 */
uint tmp_length=uint2korr(old);
uint length= seg->length;
CHARSET_INFO *cs= seg->charset;
char_length= length/cs->mbmaxlen;
old+= 2;
set_if_smaller(length,tmp_length); /* Safety */
FIX_LENGTH(cs, old, length, char_length);
store_key_length_inc(key,char_length);
memcpy((uchar*) key, old,(size_t) char_length);
key+= char_length;
continue;
}
char_length= seg->length;
if (seg->charset->mbmaxlen > 1)
{
char_length= my_charpos(seg->charset, old, old+char_length,
char_length / seg->charset->mbmaxlen);
set_if_smaller(char_length, seg->length); /* QQ: ok to remove? */
if (char_length < seg->length)
seg->charset->cset->fill(seg->charset, (char*) key + char_length,
seg->length - char_length, ' ');
}
memcpy(key, old, (size_t) char_length);
key+= seg->length;
}
return (uint) (key - start_key);
}
uint hp_rb_make_key(HP_KEYDEF *keydef, uchar *key,
const uchar *rec, uchar *recpos)
{
uchar *start_key= key;
HA_KEYSEG *seg, *endseg;
for (seg= keydef->seg, endseg= seg + keydef->keysegs; seg < endseg; seg++)
{
uint char_length;
if (seg->null_bit)
{
if (!(*key++= 1 - MY_TEST(rec[seg->null_pos] & seg->null_bit)))
continue;
}
if (seg->flag & HA_SWAP_KEY)
{
uint length= seg->length;
uchar *pos= (uchar*) rec + seg->start;
DBUG_ASSERT(seg->type != HA_KEYTYPE_BIT);
#ifdef HAVE_ISNAN
if (seg->type == HA_KEYTYPE_FLOAT)
{
float nr;
float4get(nr, pos);
if (isnan(nr))
{
/* Replace NAN with zero */
bzero(key, length);
key+= length;
continue;
}
}
else if (seg->type == HA_KEYTYPE_DOUBLE)
{
double nr;
float8get(nr, pos);
if (isnan(nr))
{
bzero(key, length);
key+= length;
continue;
}
}
#endif
pos+= length;
while (length--)
{
*key++= *--pos;
}
continue;
}
if (seg->flag & HA_VAR_LENGTH_PART)
{
uchar *pos= (uchar*) rec + seg->start;
uint length= seg->length;
uint pack_length= seg->bit_start;
uint tmp_length= (pack_length == 1 ? (uint) *(uchar*) pos :
uint2korr(pos));
CHARSET_INFO *cs= seg->charset;
char_length= length/cs->mbmaxlen;
pos+= pack_length; /* Skip VARCHAR length */
set_if_smaller(length,tmp_length);
FIX_LENGTH(cs, pos, length, char_length);
store_key_length_inc(key,char_length);
memcpy((uchar*) key,(uchar*) pos,(size_t) char_length);
key+= char_length;
continue;
}
char_length= seg->length;
if (seg->charset->mbmaxlen > 1)
{
char_length= my_charpos(seg->charset,
rec + seg->start, rec + seg->start + char_length,
char_length / seg->charset->mbmaxlen);
set_if_smaller(char_length, seg->length); /* QQ: ok to remove? */
if (char_length < seg->length)
seg->charset->cset->fill(seg->charset, (char*) key + char_length,
seg->length - char_length, ' ');
}
if (seg->type == HA_KEYTYPE_BIT && seg->bit_length)
{
*key++= get_rec_bits(rec + seg->bit_pos,
seg->bit_start, seg->bit_length);
char_length--;
}
memcpy(key, rec + seg->start, (size_t) char_length);
key+= seg->length;
}
memcpy(key, &recpos, sizeof(uchar*));
return (uint) (key - start_key);
}
uint
_mi_make_key(register MI_INFO * info, uint keynr, uchar * key,
const byte * record, my_off_t filepos)
{
byte *pos, *end;
uchar *start;
reg1 MI_KEYSEG *keyseg;
DBUG_ENTER("_mi_make_key");
start = key;
for (keyseg = info->s->keyinfo[keynr].seg; keyseg->type; keyseg++) {
enum ha_base_keytype type = (enum ha_base_keytype)keyseg->type;
uint length = keyseg->length;
if (keyseg->null_bit) {
if (record[keyseg->null_pos] & keyseg->null_bit) {
*key++ = 0; /* NULL in key */
continue;
}
*key++ = 1; /* Not NULL */
}
pos = (byte *) record + keyseg->start;
if (keyseg->flag & HA_SPACE_PACK) {
end = pos + length;
if (type != HA_KEYTYPE_NUM) {
while (end > pos && end[-1] == ' ')
end--;
} else {
while (pos < end && pos[0] == ' ')
pos++;
}
length = (uint) (end - pos);
store_key_length_inc(key, length);
memcpy((byte *) key, (byte *) pos, (size_t) length);
key += length;
continue;
}
if (keyseg->flag & HA_VAR_LENGTH) {
uint tmp_length = uint2korr(pos);
pos += 2; /* Skip VARCHAR length */
set_if_smaller(length, tmp_length);
store_key_length_inc(key, length);
} else if (keyseg->flag & HA_BLOB_PART) {
uint tmp_length = _mi_calc_blob_length(keyseg->bit_start, pos);
memcpy_fixed((byte *) & pos, pos + keyseg->bit_start, sizeof(char *));
set_if_smaller(length, tmp_length);
store_key_length_inc(key, length);
} else if (keyseg->flag & HA_SWAP_KEY) { /* Numerical column */
#ifdef NAN_TEST
float float_nr;
double dbl_nr;
if (type == HA_KEYTYPE_FLOAT) {
float_nr = float4get(pos);
if (float_nr == (float)FLT_MAX) {
float_nr = (float)FLT_MAX;
pos = (byte *) & float_nr;
}
} else if (type == HA_KEYTYPE_DOUBLE) {
dbl_nr = float8get(key);
if (dbl_nr == DBL_MAX) {
dbl_nr = DBL_MAX;
pos = (byte *) & dbl_nr;
}
}
#endif
pos += length;
while (length--) {
*key++ = *--pos;
}
continue;
}
memcpy((byte *) key, pos, length);
key += length;
}
_mi_dpointer(info, key, filepos);
DBUG_PRINT("exit", ("keynr: %d", keynr));
DBUG_DUMP("key", (byte *) start, (uint) (key - start) + keyseg->length);
DBUG_EXECUTE("key",
_mi_print_key(DBUG_FILE, info->s->keyinfo[keynr].seg, start,
(uint) (key - start));
);
