Usage Notes - Analytics Database - Teradata Vantage
Geospatial Data Types
- Deployment
- VantageCloud
- VantageCore
- Edition
- Enterprise
- IntelliFlex
- VMware
- Product
- Analytics Database
- Teradata Vantage
- Release Number
- 17.20
- Published
- June 2022
- ft:locale
- en-US
- ft:lastEdition
- 2023-08-30
- dita:mapPath
- qgk1628112272483.ditamap
- dita:ditavalPath
- qkf1628213546010.ditaval
- dita:id
- ghz1472251264557
- lifecycle
- latest
- Product Category
- Teradata Vantage™
- The ST_IsValid method can be used to validate converted 2D geometries that were not validated by Make_2D.
- If the input geometry is already a 2D geometry value, this value is returned unchanged by this method.
- A well-formed 3D geometry value can become invalid during a 3D to 2D conversion. For example, if a 3D polygon lies in a plane parallel to the y axis, its line segments will self-intersect. Make_2D does not attempt to change the geometry type of the converted geometry from polygon to linestring to account for this, and an invalid 2D geometry can result.