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Dremio UDF GIS Extensions

Here you can find the ongoing effort to document this library's supported GIS functionality.
In the sidebar (or down below), you can find different functions organized under sections/topics,
similar to those found in PostGIS' reference documentation.

• Bounding Box Functions

  • ST_XMax
  • ST_XMin
  • ST_YMax
  • ST_YMin

• Geometry Accessors

  • ST_X
  • ST_Y
  • ST_IsSimple
  • ST_IsClosed
  • ST_IsCollection
  • ST_IsEmpty
  • ST_Envelope
  • ST_GeometryN
  • ST_NumGeometries

• Geometry Validation

  • ST_IsValid
  • ST_IsValidReason
  • ST_MakeValid

• Geometry Contructors

  • ST_Point
  • ST_Collect

• Geometry Input

  • ST_GeomFromText
  • ST_GeomFromEWKT
  • ST_GeomFromWKB
  • ST_GeomFromEWKB
  • FROM_HEX

• Geometry Output

  • ST_AsText
  • ST_AsEWKT
  • ST_AsBinary
  • ST_AsEWKB
  • ST_AsGeoJson

• Geometry Processing

  • ST_Buffer
  • ST_Simplify
  • ST_Centroid
  • ST_ConvexHull
  • ST_ConcaveHull

• Measurement Functions

  • ST_Area
  • ST_Length
  • ST_Perimeter
  • ST_Angle
  • ST_Azimuth

• Overlay Functions

  • ST_Union
  • ST_Difference
  • ST_SymDifference
  • ST_Intersection

• Spatial Reference System Functions

  • ST_Transform

• Spatial Relationship

  • ST_Equals
  • ST_Within
  • ST_Touches
  • ST_Overlaps
  • ST_Intersects
  • ST_Crosses
  • ST_DWithin
  • ST_Disjoint

Note:

Not all of the supported functions are currently documented.
If you don't find your desired GIS function(s), it's best to also look inside the source code.

(the main branch will always hold the fullest, most recent functionality)

Contributions/corrections are welcomed!