# Copyright 2019 Google LLC

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# https://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

def download_public_data_sandbox():

# [START bigquery_pandas_public_data_sandbox]

from google.cloud import bigquery

# Construct a BigQuery client object.

client = bigquery.Client()

# `SELECT *` is an anti-pattern in BigQuery because it is cheaper and

# faster to use the BigQuery Storage API directly, but BigQuery Sandbox

# users can only use the BigQuery Storage API to download query results.

query_string = "SELECT * FROM `bigquery-public-data.usa_names.usa_1910_current`"

# Use the BigQuery Storage API to speed-up downloads of large tables.

dataframe = client.query(query_string).to_dataframe(create_bqstorage_client=True)

print(dataframe.info())

# [END bigquery_pandas_public_data_sandbox]