pyarrow.struct

pyarrow.struct(fields)

Create StructType instance from fields.

A struct is a nested type parameterized by an ordered sequence of types (which can all be distinct), called its fields.

Parameters

fieldsiterable of Fields or tuples, or mapping of strings to DataTypes

Each field must have a UTF8-encoded name, and these field names are part of the type metadata.

Returns

typeDataType

Examples

>>> import pyarrow as pa
>>> fields = [
...     ('f1', pa.int32()),
...     ('f2', pa.string()),
... ]
>>> struct_type = pa.struct(fields)
>>> struct_type
StructType(struct<f1: int32, f2: string>)
>>> fields = [
...     pa.field('f1', pa.int32()),
...     pa.field('f2', pa.string(), nullable=False),
... ]
>>> pa.struct(fields)
StructType(struct<f1: int32, f2: string not null>)

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