Mapping

columnsobject[]

col_idstring

Example: "618d6339-2fa7-4dfd-9c7f-c0b12016639e"

The ID of the column, a UUID for non-system columns

data_type"Boolean" | "Int8" | "Int16" | "Int32" | "Int64" | "UInt8" | "UInt16" | "UInt32" | "UInt64" | "Float16" | "Float32" | "Float64" | "Utf8" | "Date32" | "Timestamp"

Capitalized list of supported PyArrow datatypes outlined in https://arrow.apache.org/docs/python/api/datatypes.html.

Timestamp datatype is expected to be used with unit measured in "us" and timezone set to "UTC" inside of parquet column header schema or it won't be accepted; an example for PyArrow binding would look like this: pa.timestamp("us", tz="UTC")

titlestring

The human-readable label used to identify the column

unit_idstring | null

The ID of the column's unit