| # 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 create_routine_ddl(routine_id: str) -> None: | |
| # [START bigquery_create_routine_ddl] | |
| from google.cloud import bigquery | |
| # Construct a BigQuery client object. | |
| client = bigquery.Client() | |
| # TODO(developer): Choose a fully-qualified ID for the routine. | |
| # routine_id = "my-project.my_dataset.my_routine" | |
| sql = """ | |
| CREATE FUNCTION `{}`( | |
| arr ARRAY<STRUCT<name STRING, val INT64>> | |
| ) AS ( | |
| (SELECT SUM(IF(elem.name = "foo",elem.val,null)) FROM UNNEST(arr) AS elem) | |
| ) | |
| """.format( | |
| routine_id | |
| ) | |
| query_job = client.query(sql) # Make an API request. | |
| query_job.result() # Wait for the job to complete. | |
| print("Created routine {}".format(query_job.ddl_target_routine)) | |
| # [END bigquery_create_routine_ddl] | |