`ST_Polygon2DFromWKB` and friends incorrect?

[akx]

ST_Polygon2DFromWKB is documented as "Deserialize a POLYGON_2D from a WKB encoded blob", but its signature (both in docs and in code) is GEOMETRY ST_Polygon2DFromWKB (polygon POLYGON_2D).

That seems incorrect, since ST_GeomFromWKB is GEOMETRY ST_GeomFromWKB (wkb WKB_BLOB|BLOB)?

The same stands for ST_LineString2DFromWKB and ST_Point2DFromWKB.

These seem to have been added in eb55c2d but I don't see any tests or examples for them...

[Maxxen]

Hello, thanks for reporting this issue!
Yup, code is correct but parameters are swapped. These functions have been around for a while but are rarely used, and we must have set the parameters wrong when we did the big internal rework earlier this year.

You can work around this for now by calling st_geomfromwkb + cast, e.g.

select TRY_CAST(st_geomfromwkb(wkb) as POLYGON_2D);
-- or 
select st_geomfromwkb(wkb)::POLYGON_2D;