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wl 1562 (To improve RTree indexes)

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some changes to make code nicer
This commit is contained in:
hf@deer.(none)
2004-06-02 19:11:57 +05:00
parent f200b0fbf0
commit 7cf1d2596b
5 changed files with 264 additions and 278 deletions
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12
myisam/rt_index.c
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@ -462,21 +462,13 @@ static uchar *rtree_pick_key(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *key,
if ((increase = rtree_perimeter_increase(keyinfo->seg, k, key, key_length,
&perimeter)) == -1)
return NULL;
if (increase < best_incr)
if ((increase < best_incr)||
(increase == best_incr && perimeter < best_perimeter))
{
best_key = k;
best_perimeter= perimeter;
best_incr = increase;
}
else
{
if ((increase == best_incr) && (perimeter < best_perimeter))
{
best_key = k;
best_perimeter= perimeter;
best_incr = increase;
}
}
}
return best_key;
}