ST_AREA result mismatch with PostGIS 3.2.1

[marklit]

I assume both of these should be doubles and should match. This was run on Ubuntu 20 LTS with PostgreSQL 15.

select ST_AREA(ST_GEOMFROMTEXT('POLYGON ((-82.03623 29.60482, -82.0357 29.605, -82.03526 29.60513, -82.03623 29.60482))')) test

┌───────────────────────┐
│         test          │
│        double         │
├───────────────────────┤
│ 5.150013748789206e-09 │
└───────────────────────┘

SELECT ST_AREA('SRID=4326;POLYGON ((-82.03623 29.60482, -82.0357 29.605, -82.03526 29.60513, -82.03623 29.60482))');

        st_area
------------------------
 5.1500000016351076e-09

SELECT pg_typeof(ST_AREA('SRID=4326;POLYGON ((-82.03623 29.60482, -82.0357 29.605, -82.03526 29.60513, -82.03623 29.60482))'));

    pg_typeof
------------------
 double precision

[Maxxen]

Thanks for bringing this to attention! This is caused by a floating point robustness issue since the polygon is very slim. I've implemented a fix for it in the next push.