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#!/usr/bin/env python

# Copyright 2016 Google Inc. All Rights Reserved.

#

# 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

#

# http://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.

"""Command-line application to perform synchronous queries in BigQuery.

For more information, see the README.md under /bigquery.

Example invocation:

$ python sync_query.py \\

'SELECT corpus FROM `publicdata.samples.shakespeare` GROUP BY corpus'

"""

import argparse

# [START sync_query]

from google.cloud import bigquery

def sync_query(query):

client = bigquery.Client()

query_results = client.run_sync_query(query)

# Use standard SQL syntax for queries.

# See: https://cloud.google.com/bigquery/sql-reference/

query_results.use_legacy_sql = False

query_results.run()

# Drain the query results by requesting a page at a time.

page_token = None

while True:

rows, total_rows, page_token = query_results.fetch_data(

max_results=10,

page_token=page_token)

for row in rows:

print(row)

if not page_token:

break

# [END sync_query]

if __name__ == '__main__':

parser = argparse.ArgumentParser(

description=__doc__,

formatter_class=argparse.RawDescriptionHelpFormatter)

parser.add_argument('query', help='BigQuery SQL Query.')

args = parser.parse_args()

sync_query(args.query)