petern48 opened a new issue, #2059:
URL: https://github.com/apache/sedona/issues/2059
```
spark.sql("""
SELECT
ST_Within(
ST_GeomFromText('POINT (1 1)'),
ST_GeomFromText('POINT (1 1)')
), -- True
ST_Within(
ST_GeomFromText('POLYGON ((0 0, 1 0, 2 1, 3 1, 0 0))'),
ST_GeomFromText('POLYGON ((0 0, 1 0, 2 1, 3 1, 0 0))')
), -- False
ST_Within(
ST_GeomFromText('MULTIPOLYGON (((0 0, 1 1, 0 1, 0 0)))'),
ST_GeomFromText('MULTIPOLYGON (((0 0, 1 1, 0 1, 0 0)))')
) -- True
""").show()
```
Above is a query testing ST_Within on identical objects for Points,
Polygons, and Multipolygons. The second case for Polygons returns False.
In the [PostGIS implementation](https://postgis.net/docs/ST_Within.html) of
ST_Within, "The within relation is reflexive: every geometry is within itself"
so I'm guessing the second case is what's wrong.
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