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ctype_utf8.test:
Bug#4521: unique prefix keys, fix for HEAP HASH and HEAP BTREE case insensitive collations.
This commit is contained in:
101
heap/hp_hash.c
101
heap/hp_hash.c
@ -245,7 +245,15 @@ ulong hp_hashnr(register HP_KEYDEF *keydef, register const byte *key)
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}
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if (seg->type == HA_KEYTYPE_TEXT)
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{
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seg->charset->coll->hash_sort(seg->charset,pos,((uchar*)key)-pos,&nr,&nr2);
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CHARSET_INFO *cs= seg->charset;
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uint length= ((uchar*)key) - pos;
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uint char_length= length / cs->mbmaxlen;
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if (length > char_length)
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{
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char_length= my_charpos(cs, pos, pos + length, char_length);
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set_if_smaller(char_length, length);
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}
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cs->coll->hash_sort(cs, pos, char_length, &nr, &nr2);
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}
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else
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{
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@ -280,7 +288,14 @@ ulong hp_rec_hashnr(register HP_KEYDEF *keydef, register const byte *rec)
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}
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if (seg->type == HA_KEYTYPE_TEXT)
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{
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seg->charset->coll->hash_sort(seg->charset,pos,end-pos,&nr,&nr2);
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CHARSET_INFO *cs= seg->charset;
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uint char_length= seg->length / cs->mbmaxlen;
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if (seg->length > char_length)
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{
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char_length= my_charpos(cs, pos, pos + seg->length, char_length);
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set_if_smaller(char_length, seg->length);
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}
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cs->coll->hash_sort(cs, pos, char_length, &nr, &nr2);
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}
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else
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{
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@ -401,9 +416,26 @@ int hp_rec_key_cmp(HP_KEYDEF *keydef, const byte *rec1, const byte *rec2)
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}
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if (seg->type == HA_KEYTYPE_TEXT)
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{
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CHARSET_INFO *cs= seg->charset;
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uint char_length= seg->length / cs->mbmaxlen;
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uint char_length1;
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uint char_length2;
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uchar *pos1= (uchar*)rec1 + seg->start;
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uchar *pos2= (uchar*)rec2 + seg->start;
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if (seg->length > char_length)
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{
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char_length1= my_charpos(cs, pos1, pos1 + seg->length, char_length);
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set_if_smaller(char_length1, seg->length);
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char_length2= my_charpos(cs, pos2, pos2 + seg->length, char_length);
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set_if_smaller(char_length2, seg->length);
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}
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else
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{
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char_length1= char_length2= seg->length;
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}
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if (seg->charset->coll->strnncollsp(seg->charset,
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(uchar*) rec1+seg->start,seg->length,
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(uchar*) rec2+seg->start,seg->length))
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pos1,char_length1,
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pos2,char_length2))
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return 1;
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}
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else
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@ -435,9 +467,27 @@ int hp_key_cmp(HP_KEYDEF *keydef, const byte *rec, const byte *key)
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}
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if (seg->type == HA_KEYTYPE_TEXT)
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{
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CHARSET_INFO *cs= seg->charset;
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uint char_length= seg->length / cs->mbmaxlen;
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uint char_length_key;
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uint char_length_rec;
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uchar *pos= (uchar*) rec + seg->start;
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if (seg->length > char_length)
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{
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char_length_key= my_charpos(cs, key, key + seg->length, char_length);
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set_if_smaller(char_length_key, seg->length);
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char_length_rec= my_charpos(cs, pos, pos + seg->length, char_length);
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set_if_smaller(char_length_rec, seg->length);
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}
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else
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{
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char_length_key= seg->length;
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char_length_rec= seg->length;
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}
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if (seg->charset->coll->strnncollsp(seg->charset,
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(uchar*) rec+seg->start, seg->length,
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(uchar*) key, seg->length))
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(uchar*) pos, char_length_rec,
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(uchar*) key, char_length_key))
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return 1;
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}
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else
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@ -458,10 +508,19 @@ void hp_make_key(HP_KEYDEF *keydef, byte *key, const byte *rec)
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for (seg=keydef->seg,endseg=seg+keydef->keysegs ; seg < endseg ; seg++)
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{
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CHARSET_INFO *cs= seg->charset;
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uint char_length= (cs && cs->mbmaxlen > 1) ? seg->length / cs->mbmaxlen :
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seg->length;
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uchar *pos= (uchar*) rec + seg->start;
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if (seg->null_bit)
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*key++= test(rec[seg->null_pos] & seg->null_bit);
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memcpy(key,rec+seg->start,(size_t) seg->length);
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key+=seg->length;
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if (seg->length > char_length)
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{
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char_length= my_charpos(cs, pos, pos + seg->length, char_length);
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set_if_smaller(char_length, seg->length);
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}
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memcpy(key,rec+seg->start,(size_t) char_length);
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key+= char_length;
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}
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}
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@ -473,6 +532,7 @@ uint hp_rb_make_key(HP_KEYDEF *keydef, byte *key,
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for (seg= keydef->seg, endseg= seg + keydef->keysegs; seg < endseg; seg++)
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{
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uint char_length;
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if (seg->null_bit)
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{
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if (!(*key++= 1 - test(rec[seg->null_pos] & seg->null_bit)))
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@ -515,7 +575,18 @@ uint hp_rb_make_key(HP_KEYDEF *keydef, byte *key,
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}
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continue;
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}
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memcpy(key, rec + seg->start, (size_t) seg->length);
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char_length= seg->length / (seg->charset ? seg->charset->mbmaxlen : 1);
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if (seg->length > char_length)
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{
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char_length= my_charpos(seg->charset,
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rec + seg->start, rec + seg->start + seg->length,
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char_length);
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set_if_smaller(char_length, seg->length);
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if (char_length < seg->length)
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seg->charset->cset->fill(seg->charset, key + char_length,
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seg->length - char_length, ' ');
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}
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memcpy(key, rec + seg->start, (size_t) char_length);
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key+= seg->length;
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}
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memcpy(key, &recpos, sizeof(byte*));
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@ -530,6 +601,7 @@ uint hp_rb_pack_key(HP_KEYDEF *keydef, uchar *key, const uchar *old, uint k_len)
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for (seg= keydef->seg, endseg= seg + keydef->keysegs;
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seg < endseg && (int) k_len > 0; old+= seg->length, seg++)
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{
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uint char_length;
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if (seg->null_bit)
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{
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k_len--;
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@ -551,7 +623,16 @@ uint hp_rb_pack_key(HP_KEYDEF *keydef, uchar *key, const uchar *old, uint k_len)
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}
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continue;
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}
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memcpy((byte*) key, old, seg->length);
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char_length= seg->length / (seg->charset ? seg->charset->mbmaxlen : 1);
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if (seg->length > char_length)
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{
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char_length= my_charpos(seg->charset, old, old+seg->length, char_length);
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set_if_smaller(char_length, seg->length);
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if (char_length < seg->length)
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seg->charset->cset->fill(seg->charset, key + char_length,
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seg->length - char_length, ' ');
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}
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memcpy(key, old, (size_t) char_length);
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key+= seg->length;
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k_len-= seg->length;
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}
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