Hi,
Is there a way to use the native PostgreSQL (i.e. not postgis) "polygon"
data type through SQLAlchemy? I'm guessing one might be able to define the
model class via autoload as normal, then add some kind of custom column
definition? Surely someone has done this before, but I haven't been able to
find an example.
I've taken a look at geoalchemy and tried to implement that, but was
getting this error:
ProgrammingError: (psycopg2.ProgrammingError) function st_asbinary(polygon)
does not exist
LINE 1: ....sdss_frame.filename AS muna_sdss_frame_filename, ST_AsBinar...
^
HINT: No function matches the given name and argument types. You might
need to add explicit type casts.
If at all possible, I'd prefer to use the native data type, even if it
requires a custom adaptor. (Again, surely someone has written this?)
Cheers,
Demitri
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