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Add geometry, geography, box2d, and box3d PostGIS types. #518

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merged 1 commit into from
Sep 25, 2024
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Add geometry, geography, box2d, and box3d PostGIS types. #518

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51 changes: 50 additions & 1 deletion edgedb/protocol/codecs/codecs.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ from edgedb import enums
from edgedb.datatypes import datatypes

from libc.string cimport memcpy

from cpython.bytes cimport PyBytes_FromStringAndSize

include "./edb_types.pxi"

Expand Down Expand Up @@ -894,6 +894,27 @@ cdef bigint_decode(pgproto.CodecContext settings, FRBuffer *buf):
return int(result)


cdef geometry_encode(pgproto.CodecContext settings, WriteBuffer buf, obj):
buf.write_int32(len(obj.wkb))
buf.write_bytes(obj.wkb)


cdef geometry_decode(pgproto.CodecContext settings, FRBuffer *buf):
cdef:
object result
# Just wrap the bytes into a named tuple with a single field `wkb`
descriptor = datatypes.record_desc_new(
('wkb',), <object>NULL, <object>NULL)
result = datatypes.namedtuple_new(
datatypes.namedtuple_type_new(descriptor))

elem = PyBytes_FromStringAndSize(frb_read_all(buf), buf.len)
cpython.Py_INCREF(elem)
cpython.PyTuple_SET_ITEM(result, 0, elem)

return result


cdef register_base_scalar_codecs():
register_base_scalar_codec(
'std::uuid',
Expand Down Expand Up @@ -1007,5 +1028,33 @@ cdef register_base_scalar_codecs():
uuid.UUID('9565dd88-04f5-11ee-a691-0b6ebe179825'),
)

register_base_scalar_codec(
'ext::postgis::geometry',
geometry_encode,
geometry_decode,
uuid.UUID('44c901c0-d922-4894-83c8-061bd05e4840'),
)

register_base_scalar_codec(
'ext::postgis::geography',
geometry_encode,
geometry_decode,
uuid.UUID('4d738878-3a5f-4821-ab76-9d8e7d6b32c4'),
)

register_base_scalar_codec(
'ext::postgis::box2d',
geometry_encode,
geometry_decode,
uuid.UUID('7fae5536-6311-4f60-8eb9-096a5d972f48'),
)

register_base_scalar_codec(
'ext::postgis::box3d',
geometry_encode,
geometry_decode,
uuid.UUID('c1a50ff8-fded-48b0-85c2-4905a8481433'),
)


register_base_scalar_codecs()
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