ST_Within
E427698
ST_Within is a PostGIS spatial function that tests whether one geometry is completely contained within another, returning a boolean result.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ST_Within canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4279535 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ST_Within Context triple: [PostGIS, supportsOperation, ST_Within]
-
A.
Within
Within is an immersive media and virtual reality company known for producing and distributing high-quality VR experiences and storytelling content.
-
B.
PostGIS
PostGIS is an open-source spatial database extender that adds robust geographic object support and spatial querying capabilities to PostgreSQL.
-
C.
JTS
JTS is a leading academic and spiritual center of Conservative Judaism, known for training rabbis, cantors, and scholars and for its influential research in Jewish studies.
-
D.
Borderplex region
The Borderplex region is a transborder metropolitan area centered around El Paso, Texas, Ciudad Juárez, Mexico, and Las Cruces, New Mexico, known for its integrated economy, culture, and cross-border trade.
-
E.
GiST
GiST (Generalized Search Tree) is a flexible indexing framework in PostgreSQL that allows the implementation of a wide variety of custom index types for complex data and queries.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ST_Within Target entity description: ST_Within is a PostGIS spatial function that tests whether one geometry is completely contained within another, returning a boolean result.
-
A.
Within
Within is an immersive media and virtual reality company known for producing and distributing high-quality VR experiences and storytelling content.
-
B.
PostGIS
PostGIS is an open-source spatial database extender that adds robust geographic object support and spatial querying capabilities to PostgreSQL.
-
C.
JTS
JTS is a leading academic and spiritual center of Conservative Judaism, known for training rabbis, cantors, and scholars and for its influential research in Jewish studies.
-
D.
Borderplex region
The Borderplex region is a transborder metropolitan area centered around El Paso, Texas, Ciudad Juárez, Mexico, and Las Cruces, New Mexico, known for its integrated economy, culture, and cross-border trade.
-
E.
GiST
GiST (Generalized Search Tree) is a flexible indexing framework in PostgreSQL that allows the implementation of a wide variety of custom index types for complex data and queries.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
PostGIS spatial function
ⓘ
geometry relationship function ⓘ topological predicate ⓘ |
| acceptsArgumentType |
geometry
ⓘ
geometry collection ⓘ |
| argumentCount | 2 ⓘ |
| availableIn |
PostgreSQL with PostGIS extension
ⓘ
linked to:
PostGIS
|
| basedOnModel | DE-9IM ⓘ |
| compliesWith | OGC Simple Features specification semantics ⓘ |
| documentationURL | https://postgis.net/docs/ST_Within.html ⓘ |
| exampleUsage | SELECT ST_Within(geom, boundary_geom) FROM mytable; ⓘ |
| falseWhen |
any point of g1 lies in the exterior of g2
ⓘ
geometries are disjoint ⓘ geometries only touch at boundary without interior inclusion ⓘ |
| firstArgumentRole | inner geometry ⓘ |
| geometryDimensionSupport |
supports linestrings
ⓘ
supports points ⓘ supports polygons ⓘ |
| implementedIn | PostGIS ⓘ |
| indexSupport | can use spatial indexes for performance ⓘ |
| isInverseOf | ST_Contains ⓘ |
| libraryDependency | GEOS ⓘ |
| nullHandling | returns NULL if any input geometry is NULL ⓘ |
| relatedFunction |
ST_ContainsProperly
ⓘ
ST_CoveredBy ⓘ ST_Covers ⓘ ST_Intersects ⓘ ST_Within(geography) ⓘ |
| returns | boolean ⓘ |
| secondArgumentRole | outer geometry ⓘ |
| sqlSignature | ST_Within(geometry g1, geometry g2) → boolean ⓘ |
| testsProperty |
boundary of inner geometry does not intersect exterior of outer geometry
ⓘ
no points of inner geometry lie in exterior of outer geometry ⓘ one geometry is completely inside another geometry ⓘ |
| testsRelation | within ⓘ |
| trueWhen | every point of g1 is in the interior or boundary of g2 ⓘ |
| usedFor |
filtering geometries contained in other geometries
ⓘ
finding features inside administrative boundaries ⓘ point-in-polygon tests ⓘ spatial queries ⓘ |
| usesAlgorithm | Dimensionally Extended nine-Intersection Model ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ST_Within Description of subject: ST_Within is a PostGIS spatial function that tests whether one geometry is completely contained within another, returning a boolean result.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.