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DuckDB 1.3 ドキュメント 全文検索
Results of 1 - 5 of about 5 for geometry (0.004 sec.)
- Spatial Functions – DuckDB 12428
- This page is for DuckDB 1.3, which is outdated.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
...of the PROJ library version that is being used by this instance of DuckDB. ST_Affine Applies an affine transformation to a geometry. ST_Area Compute the area of a geometry. ST_Area_Spheroid Returns the area of a geometry in meters, using an ellipsoidal m...odel of the earth ST_AsGeoJSON Returns the geometry as a GeoJSON fragment ST_AsHEXWKB Returns the geometry as a HEXWKB string ST_AsSVG Convert the geometry into a SVG fragmen...t or path ST_AsText Returns the geometry as a WKT string ST_AsWKB Returns the geometry as a WKB (Well-Known-Binary) blob ST_Azimuth Returns the azimuth (a clockwis... - https://man.mtool.work/duckdb/1.3/core_extensions/spatial/functions.html
- Spatial Extension – DuckDB 9578
- This page is for DuckDB 1.3, which is outdated.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
...; Note that the spatial extension is not autoloadable. Therefore, you need to load it before using it: LOAD spatial ; The GEOMETRY Type The core of the spatial extension is the GEOMETRY type. If you're unfamiliar with geospatial data and GIS tooling, th...is type probably works very different from what you'd expect. On the surface, the GEOMETRY type is a binary representation of “geometry” data made up out of sets of vertices (pairs of X and Y double precision floa...ts). But what makes it somewhat special is that its actually used to store one of several different geometry subtypes. These are POINT , LINESTRING , POLYGON , as well as their “collection” equivalents, MULTIPOINT , MULTILINESTRING... - https://man.mtool.work/duckdb/1.3/core_extensions/spatial/overview.html
- R-Tree Indexes – DuckDB 9063
- This page is for DuckDB 1.3, which is outdated.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
...e 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 all of the child no...des 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 bounding rectangle of a ge...ometry (or the bounding "box" in the context of 2D geometry), we mean the minimum bounding rectangle. Additionally, we tend to assume that bounding boxes/rectangles are axis-aligned,... - https://man.mtool.work/duckdb/1.3/core_extensions/spatial/r-tree_indexes.html
- GDAL Integration – DuckDB 7464
- 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
...sically anything you would normally be able to pass to GDAL. Note that this will not perform any reprojection of the input geometry, it just sets the metadata if the target driver supports it. Limitations Note that only vector based drivers are supported... - https://man.mtool.work/duckdb/1.3/core_extensions/spatial/gdal.html
- Configuration – DuckDB 7390
- 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
...emit compressed vectors to utilize late decompression BOOLEAN false enable_geoparquet_conversion Attempt to decode/encode geometry data in/as GeoParquet files if the spatial extension is present. BOOLEAN true enable_http_metadata_cache Whether or not th... - https://man.mtool.work/duckdb/1.3/configuration/overview.html
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