Mayya Sharipova 2c77c0df65 Fix testIndexhasDuplicateData tests (#49786)
testIndexHasDuplicateData tests were failing ocassionally,
due to approximate calculation of BKDReader.estimatePointCount,
where if the node is Leaf, the number of points in it
was (maxPointsInLeafNode + 1) / 2.
As DEFAULT_MAX_POINTS_IN_LEAF_NODE = 1024, for small indexes
used in tests, the estimation could be really off.

This rewrites tests, to make the  max points in leaf node to
be a small value to control the tests.

Closes #49703
2020-03-19 15:09:23 -04:00
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