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Added support of null keys in HEAP tables

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Added ORDER BY optimization
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monty@tik.mysql.fi
2002-01-12 15:42:54 +02:00
parent 47408baac6
commit 7dd4eb71fe
31 changed files with 547 additions and 148 deletions
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4
heap/hp_open.c
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@ -44,7 +44,11 @@ HP_INFO *heap_open(const char *name, int mode, uint keys, HP_KEYDEF *keydef,
key_segs+= keydef[i].keysegs;
bzero((char*) &keydef[i].block,sizeof(keydef[i].block));
for (j=length=0 ; j < keydef[i].keysegs; j++)
{
length+=keydef[i].seg[j].length;
if (keydef[i].seg[j].null_bit)
keydef[i].flag |= HA_NULL_PART_KEY;
}
keydef[i].length=length;
if (length > max_length)
max_length=length;