Supported Types

PyMongoArrow currently supports a small subset of all BSON types. Support for additional types will be added in subsequent releases.

Note

For more information about BSON types, see the BSON specification.

BSON Type	Type Identifiers
64-bit binary floating point	py.float, an instance of pyarrow.float64()
32-bit integer	an instance of pyarrow.int32()
64-bit integer	int, bson.int64.Int64, an instance of pyarrow.int64()
UTC datetime	an instance of timestamp with ms resolution, py.datetime.datetime

Type identifiers can be used to specify that a field is of a certain type during pymongoarrow.api.Schema declaration. For example, if your data has fields ‘f1’ and ‘f2’ bearing types 32-bit integer and UTC datetime respectively, your schema can be defined as:

schema = Schema({'f1': pyarrow.int32(), 'f2': pyarrow.timestamp('ms')})