ST_ExteriorRing Method | Geospatial Data Types | Teradata Vantage - ST_ExteriorRing - 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
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dita:id
ghz1472251264557
lifecycle
latest
Product Category
Teradata Vantage™

Get and set the exterior ring of an ST_Geometry type that represents an ST_Polygon value.

Valid Data Types

ST_Polygon

This method can be called on 3D geometries (those that include z coordinates). However, the z coordinate is ignored in method calculations. Consequently, any z coordinates returned by this method should be ignored. Teradata recommends using the Make_2D method to strip out the z coordinates of the return value.

Result Type

Returns an ST_Geometry value.

IF you … THEN ST_ExteriorRing returns …
do not pass in the acurve argument an ST_LineString of the exterior ring of the ST_Polygon.
pass in the acurve argument the new ST_Polygon with the exterior ring set to the value of the acurve argument.