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DuckDB 1.3 ドキュメント 全文検索
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- Spatial Functions – DuckDB 9414
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ection geometry. ST_CollectionExtract Extracts geometries from a GeometryCollection into a typed multi geometry. ST_ConcaveHull Returns the 'concave' hull of the input geometry, containing all of the source input's points, and which can be used to cr...eate polygons from points. The ratio parameter dictates the level of concavity; 1.0 returns the convex hull; and 0 indicates to return the most concave hull possible. Set allowHoles to a non-zero value to allow output containing h...he second geometry ST_ContainsProperly Returns true if the first geometry "properly" contains the second geometry ST_ConvexHull Returns the convex hull enclosing the geometry ST_CoverageInvalidEdges Returns the invalid edges in a polygonal coverage,... - https://man.mtool.work/duckdb/1.3/core_extensions/spatial/functions.html
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