How to get distance between two points Postgres?

Question

Here is a query:

SELECT ST_DistanceSpheroid(geometry(a.location), ST_GeomFromText('POINT(28.828042, 47.023565)', 4326), 'SPHEROID["WGS 84",6378137,298.257223563]')
FROM users a
WHERE a.id=1

I got this error:

ERROR: ОШИБКА:  parse error - invalid geometry
HINT:  "POINT(28.828042, 4" <-- parse error at position 18 within geometry


SQL state: XX000

Where did I make mistake??

Answer 1

Well-known Text representations of points don't need a comma. Try this:

POINT(28.828042 47.023565)