Teodor Sigaev acdf2a8b37 Introduce SP-GiST operator class over box. ... Patch implements quad-tree over boxes, naive approach of 2D quad tree will not work for any non-point objects because splitting space on node is not efficient. The idea of pathc is treating 2D boxes as 4D points, so, object will not overlap (in 4D space). The performance tests reveal that this technique especially beneficial with too much overlapping objects, so called "spaghetti data". Author: Alexander Lebedev with editorization by Emre Hasegeli and me		2016-03-30 18:42:36 +03:00
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src	Introduce SP-GiST operator class over box.	2016-03-30 18:42:36 +03:00
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