LUCENE-10678: Fix potential overflow when computing the partition point on the BKD tree (#1065) #2668
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…nt on the BKD tree (#1065) We currently compute the partition point for a set of points by multiplying the number of nodes that needs to be on the left of the BKD tree by the maxPointsInLeafNode. This multiplication is done on the integer space so if the partition point is bigger than Integer.MAX_VALUE it will overflow. This commit moves the multiplication to the long space so it doesn't overflow.
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We currently compute the partition point for a set of points by multiplying the number of nodes that needs to be on
the left of the BKD tree by the maxPointsInLeafNode. This multiplication is done on the integer space so if the partition point
is bigger than Integer.MAX_VALUE it will overflow.
This commit moves the multiplication to the long space so it doesn't overflow.