Add as_arrow() to Schema class

[ndrluis]

Use case

import pyarrow as pa
import pandas as pd

table = catalog.load_table('some_schema.table_name')
schema = table.schema().as_arrow()

data = {
    'id_job': [1, 2, 3, 4],
    'description': ['some text', 'some text', 'some text', 'some text']
}

df = pd.DataFrame(data)

pa_df = pa.Table.from_pandas(df, schema=schema)

table.append(pa_df)

[Fokko]

Thanks for raising this! This makes sense to me. Could you add this to the docs as well?

[kevinjqliu]

(reposting from slack)
This is great. Exposing the Iceberg Table's schema as pyarrow schema will also solve the problem I was having here

#520 (comment)

[Fokko]

Thanks @ndrluis for adding this, and @kevinjqliu for joining the conversation 👍