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 |
---|---|
String |
|
ObjectId |
|
Boolean |
an instance of |
64-bit binary floating point |
|
32-bit integer |
an instance of |
64-bit integer |
|
UTC datetime |
an instance of |
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, and ‘_id’ that is an ObjectId, your schema can be defined as:
schema = Schema({
'_id': ObjectId,
'f1': pyarrow.int32(),
'f2': pyarrow.timestamp('ms')
})
Unsupported data types in a schema cause a ValueError
identifying the
field and its data type.