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- R-Tree Indexes 11228
- The spatial extension provides support for spatial indexing through the R-tree extension index type. Why Should I Use an R-Tree Index? When working with geospatial datasets, it is very common that you want to filter rows based on their spat
...ntly. How Do R-Tree Indexes Work? An R-tree is a balanced tree data structure that stores the approximate minimum bounding rectangle of each geometry (and the internal ID of the corresponding row) in the leaf nodes, and the bounding rectangle enclosing al...l of the child nodes in each internal node. The minimum bounding rectangle (MBR) of a geometry is the smallest rectangle that completely encloses the geometry. Usually when we talk about the boundi...ng rectangle of a geometry (or the bounding "box" in the context of 2D geometry), we mean the minimum bounding rectangle. Additionally,... - https://man.mtool.work/duckdb/2.0/core_extensions/spatial/r-tree_indexes.html
- Spatial Functions 7485
- Function Index Scalar Functions Function Summary DuckDB_PROJ_Compiled_Version Returns a text description of the PROJ library version that this instance of DuckDB was compiled against. DuckDB_Proj_Version Returns a text description of the PR
...ath" in the original geometry. ST_EndPoint Returns the end point of a LINESTRING. ST_Envelope Returns the minimum bounding rectangle of a geometry as a polygon geometry ST_Equals Returns true if the geometries are "equal" ST_Extent Returns the minimal bou...mInscribedCircle Returns the maximum inscribed circle of the input geometry, optionally with a tolerance. ST_MinimumRotatedRectangle Returns the minimum rotated rectangle that bounds the input geometry, finding the surrounding box that has the lowest area...by using a rotated rectangle, rather than taking the lowest and highest coordinate values as per ST_Envelope(). ST_Multi Turns a single geometry into a... - https://man.mtool.work/duckdb/2.0/core_extensions/spatial/functions.html
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