postgres

Commit Graph

Author	SHA1	Message	Date
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	10 years ago

Author

SHA1

Message

Date

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

10 years ago

1 Commits (2d02a856e8331329121ac2fa2c0b5dab0d106ca0)